diff options
| author | Florian Pritz <bluewind@xinu.at> | 2017-09-09 16:05:22 +0200 |
|---|---|---|
| committer | Florian Pritz <bluewind@xinu.at> | 2017-09-09 16:05:22 +0200 |
| commit | 27639d64d06b62f237bbde253c46cd28fdce8884 (patch) | |
| tree | 7a2f00cfd44cfcdfe6cb1abc1cfc0675632948c4 /system/database/drivers/pdo | |
| parent | 9c5bfbee5b42ea50a5611c537b8dbf01d7a64f79 (diff) | |
| parent | 6c7a4266410070d30f8f6bcdf9c9e67f3d6478e3 (diff) | |
Merge tag '3.1.5' into dev-ci3
Signed-off-by: Florian Pritz <bluewind@xinu.at>
Diffstat (limited to 'system/database/drivers/pdo')
30 files changed, 6047 insertions, 1015 deletions
diff --git a/system/database/drivers/pdo/index.html b/system/database/drivers/pdo/index.html index c942a79ce..b702fbc39 100644 --- a/system/database/drivers/pdo/index.html +++ b/system/database/drivers/pdo/index.html @@ -1,3 +1,4 @@ +<!DOCTYPE html> <html> <head> <title>403 Forbidden</title> @@ -7,4 +8,4 @@ <p>Directory access is forbidden.</p> </body> -</html>
\ No newline at end of file +</html> diff --git a/system/database/drivers/pdo/pdo_driver.php b/system/database/drivers/pdo/pdo_driver.php index e0e7dab65..6afc999c2 100644 --- a/system/database/drivers/pdo/pdo_driver.php +++ b/system/database/drivers/pdo/pdo_driver.php @@ -1,811 +1,329 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * An open source application development framework for PHP * - * @package CodeIgniter - * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. - * @license http://codeigniter.com/user_guide/license.html - * @author EllisLab Dev Team - * @link http://codeigniter.com - * @since Version 2.1.2 + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 2.1.0 * @filesource */ - -// ------------------------------------------------------------------------ +defined('BASEPATH') OR exit('No direct script access allowed'); /** * PDO Database Adapter Class * * Note: _DB is an extender class that the app controller - * creates dynamically based on whether the active record + * creates dynamically based on whether the query builder * class is being used or not. * * @package CodeIgniter * @subpackage Drivers * @category Database * @author EllisLab Dev Team - * @link http://codeigniter.com/user_guide/database/ + * @link https://codeigniter.com/user_guide/database/ */ class CI_DB_pdo_driver extends CI_DB { - var $dbdriver = 'pdo'; - - // the character used to excape - not necessary for PDO - var $_escape_char = ''; - var $_like_escape_str; - var $_like_escape_chr; - - - /** - * The syntax to count rows is slightly different across different - * database engines, so this string appears in each driver and is - * used for the count_all() and count_all_results() functions. - */ - var $_count_string = "SELECT COUNT(*) AS "; - var $_random_keyword; - - var $options = array(); - - function __construct($params) - { - parent::__construct($params); - - // clause and character used for LIKE escape sequences - if (strpos($this->hostname, 'mysql') !== FALSE) - { - $this->_like_escape_str = ''; - $this->_like_escape_chr = ''; - - //Prior to this version, the charset can't be set in the dsn - if(is_php('5.3.6')) - { - $this->hostname .= ";charset={$this->char_set}"; - } - - //Set the charset with the connection options - $this->options['PDO::MYSQL_ATTR_INIT_COMMAND'] = "SET NAMES {$this->char_set}"; - } - elseif (strpos($this->hostname, 'odbc') !== FALSE) - { - $this->_like_escape_str = " {escape '%s'} "; - $this->_like_escape_chr = '!'; - } - else - { - $this->_like_escape_str = " ESCAPE '%s' "; - $this->_like_escape_chr = '!'; - } - - empty($this->database) OR $this->hostname .= ';dbname='.$this->database; - - $this->trans_enabled = FALSE; - - $this->_random_keyword = ' RND('.time().')'; // database specific random keyword - } - /** - * Non-persistent database connection + * Database driver * - * @access private called by the base class - * @return resource + * @var string */ - function db_connect() - { - $this->options['PDO::ATTR_ERRMODE'] = PDO::ERRMODE_SILENT; - - return new PDO($this->hostname, $this->username, $this->password, $this->options); - } - - // -------------------------------------------------------------------- + public $dbdriver = 'pdo'; /** - * Persistent database connection + * PDO Options * - * @access private called by the base class - * @return resource + * @var array */ - function db_pconnect() - { - $this->options['PDO::ATTR_ERRMODE'] = PDO::ERRMODE_SILENT; - $this->options['PDO::ATTR_PERSISTENT'] = TRUE; - - return new PDO($this->hostname, $this->username, $this->password, $this->options); - } + public $options = array(); // -------------------------------------------------------------------- /** - * Reconnect + * Class constructor * - * Keep / reestablish the db connection if no queries have been - * sent for a length of time exceeding the server's idle timeout + * Validates the DSN string and/or detects the subdriver. * - * @access public + * @param array $params * @return void */ - function reconnect() - { - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Select the database - * - * @access private called by the base class - * @return resource - */ - function db_select() - { - // Not needed for PDO - return TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Set client character set - * - * @access public - * @param string - * @param string - * @return resource - */ - function db_set_charset($charset, $collation) - { - // @todo - add support if needed - return TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Version number query string - * - * @access public - * @return string - */ - function _version() - { - return $this->conn_id->getAttribute(PDO::ATTR_CLIENT_VERSION); - } - - // -------------------------------------------------------------------- - - /** - * Execute the query - * - * @access private called by the base class - * @param string an SQL query - * @return object - */ - function _execute($sql) + public function __construct($params) { - $sql = $this->_prep_query($sql); - $result_id = $this->conn_id->prepare($sql); + parent::__construct($params); - if (is_object($result_id) && ($result = $result_id->execute())) + if (preg_match('/([^:]+):/', $this->dsn, $match) && count($match) === 2) { - if (is_numeric(stripos($sql, 'SELECT'))) - { - $this->affect_rows = count($result_id->fetchAll()); - } - else - { - $this->affect_rows = $result_id->rowCount(); - } + // If there is a minimum valid dsn string pattern found, we're done + // This is for general PDO users, who tend to have a full DSN string. + $this->subdriver = $match[1]; + return; } - else + // Legacy support for DSN specified in the hostname field + elseif (preg_match('/([^:]+):/', $this->hostname, $match) && count($match) === 2) { - $this->affect_rows = 0; - $result = FALSE; + $this->dsn = $this->hostname; + $this->hostname = NULL; + $this->subdriver = $match[1]; + return; } - - return $result; - } - - // -------------------------------------------------------------------- - - /** - * Prep the query - * - * If needed, each database adapter can prep the query string - * - * @access private called by execute() - * @param string an SQL query - * @return string - */ - function _prep_query($sql) - { - return $sql; - } - - // -------------------------------------------------------------------- - - /** - * Begin Transaction - * - * @access public - * @return bool - */ - function trans_begin($test_mode = FALSE) - { - if ( ! $this->trans_enabled) + elseif (in_array($this->subdriver, array('mssql', 'sybase'), TRUE)) { - return TRUE; + $this->subdriver = 'dblib'; } - - // When transactions are nested we only begin/commit/rollback the outermost ones - if ($this->_trans_depth > 0) + elseif ($this->subdriver === '4D') { - return TRUE; + $this->subdriver = '4d'; } - - // Reset the transaction failure flag. - // If the $test_mode flag is set to TRUE transactions will be rolled back - // even if the queries produce a successful result. - $this->_trans_failure = (bool) ($test_mode === TRUE); - - return $this->conn_id->beginTransaction(); - } - - // -------------------------------------------------------------------- - - /** - * Commit Transaction - * - * @access public - * @return bool - */ - function trans_commit() - { - if ( ! $this->trans_enabled) + elseif ( ! in_array($this->subdriver, array('4d', 'cubrid', 'dblib', 'firebird', 'ibm', 'informix', 'mysql', 'oci', 'odbc', 'pgsql', 'sqlite', 'sqlsrv'), TRUE)) { - return TRUE; - } + log_message('error', 'PDO: Invalid or non-existent subdriver'); - // When transactions are nested we only begin/commit/rollback the outermost ones - if ($this->_trans_depth > 0) - { - return TRUE; + if ($this->db_debug) + { + show_error('Invalid or non-existent PDO subdriver'); + } } - $ret = $this->conn->commit(); - return $ret; + $this->dsn = NULL; } // -------------------------------------------------------------------- /** - * Rollback Transaction + * Database connection * - * @access public - * @return bool + * @param bool $persistent + * @return object */ - function trans_rollback() + public function db_connect($persistent = FALSE) { - if ( ! $this->trans_enabled) + if ($persistent === TRUE) { - return TRUE; + $this->options[PDO::ATTR_PERSISTENT] = TRUE; } - // When transactions are nested we only begin/commit/rollback the outermost ones - if ($this->_trans_depth > 0) + try { - return TRUE; + return new PDO($this->dsn, $this->username, $this->password, $this->options); } - - $ret = $this->conn_id->rollBack(); - return $ret; - } - - // -------------------------------------------------------------------- - - /** - * Escape String - * - * @access public - * @param string - * @param bool whether or not the string will be used in a LIKE condition - * @return string - */ - function escape_str($str, $like = FALSE) - { - if (is_array($str)) + catch (PDOException $e) { - foreach ($str as $key => $val) + if ($this->db_debug && empty($this->failover)) { - $str[$key] = $this->escape_str($val, $like); + $this->display_error($e->getMessage(), '', TRUE); } - return $str; - } - - //Escape the string - $str = $this->conn_id->quote($str); - - //If there are duplicated quotes, trim them away - if (strpos($str, "'") === 0) - { - $str = substr($str, 1, -1); - } - - // escape LIKE condition wildcards - if ($like === TRUE) - { - $str = str_replace( array('%', '_', $this->_like_escape_chr), - array($this->_like_escape_chr.'%', $this->_like_escape_chr.'_', $this->_like_escape_chr.$this->_like_escape_chr), - $str); - } - - return $str; - } - - // -------------------------------------------------------------------- - - /** - * Affected Rows - * - * @access public - * @return integer - */ - function affected_rows() - { - return $this->affect_rows; - } - - // -------------------------------------------------------------------- - - /** - * Insert ID - * - * @access public - * @return integer - */ - function insert_id($name=NULL) - { - //Convenience method for postgres insertid - if (strpos($this->hostname, 'pgsql') !== FALSE) - { - $v = $this->_version(); - - $table = func_num_args() > 0 ? func_get_arg(0) : NULL; - - if ($table == NULL && $v >= '8.1') - { - $sql='SELECT LASTVAL() as ins_id'; - } - $query = $this->query($sql); - $row = $query->row(); - return $row->ins_id; - } - else - { - return $this->conn_id->lastInsertId($name); + return FALSE; } } // -------------------------------------------------------------------- /** - * "Count All" query - * - * Generates a platform-specific query string that counts all records in - * the specified database + * Database version number * - * @access public - * @param string * @return string */ - function count_all($table = '') + public function version() { - if ($table == '') + if (isset($this->data_cache['version'])) { - return 0; + return $this->data_cache['version']; } - $query = $this->query($this->_count_string . $this->_protect_identifiers('numrows') . " FROM " . $this->_protect_identifiers($table, TRUE, NULL, FALSE)); - - if ($query->num_rows() == 0) + // Not all subdrivers support the getAttribute() method + try { - return 0; + return $this->data_cache['version'] = $this->conn_id->getAttribute(PDO::ATTR_SERVER_VERSION); } - - $row = $query->row(); - $this->_reset_select(); - return (int) $row->numrows; - } - - // -------------------------------------------------------------------- - - /** - * Show table query - * - * Generates a platform-specific query string so that the table names can be fetched - * - * @access private - * @param boolean - * @return string - */ - function _list_tables($prefix_limit = FALSE) - { - $sql = "SHOW TABLES FROM `".$this->database."`"; - - if ($prefix_limit !== FALSE AND $this->dbprefix != '') + catch (PDOException $e) { - //$sql .= " LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr); - return FALSE; // not currently supported + return parent::version(); } - - return $sql; } // -------------------------------------------------------------------- /** - * Show column query - * - * Generates a platform-specific query string so that the column names can be fetched + * Execute the query * - * @access public - * @param string the table name - * @return string + * @param string $sql SQL query + * @return mixed */ - function _list_columns($table = '') + protected function _execute($sql) { - return "SHOW COLUMNS FROM ".$table; + return $this->conn_id->query($sql); } // -------------------------------------------------------------------- /** - * Field data query - * - * Generates a platform-specific query so that the column data can be retrieved + * Begin Transaction * - * @access public - * @param string the table name - * @return object + * @return bool */ - function _field_data($table) + protected function _trans_begin() { - return "SELECT TOP 1 FROM ".$table; + return $this->conn_id->beginTransaction(); } // -------------------------------------------------------------------- /** - * The error message string + * Commit Transaction * - * @access private - * @return string + * @return bool */ - function _error_message() + protected function _trans_commit() { - $error_array = $this->conn_id->errorInfo(); - return $error_array[2]; + return $this->conn_id->commit(); } // -------------------------------------------------------------------- /** - * The error message number + * Rollback Transaction * - * @access private - * @return integer + * @return bool */ - function _error_number() + protected function _trans_rollback() { - return $this->conn_id->errorCode(); + return $this->conn_id->rollBack(); } // -------------------------------------------------------------------- /** - * Escape the SQL Identifiers - * - * This function escapes column and table names + * Platform-dependent string escape * - * @access private * @param string * @return string */ - function _escape_identifiers($item) + protected function _escape_str($str) { - if ($this->_escape_char == '') - { - return $item; - } - - foreach ($this->_reserved_identifiers as $id) - { - if (strpos($item, '.'.$id) !== FALSE) - { - $str = $this->_escape_char. str_replace('.', $this->_escape_char.'.', $item); - - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str); - } - } - - if (strpos($item, '.') !== FALSE) - { - $str = $this->_escape_char.str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item).$this->_escape_char; - - } - else - { - $str = $this->_escape_char.$item.$this->_escape_char; - } + // Escape the string + $str = $this->conn_id->quote($str); - // remove duplicates if the user already included the escape - return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $str); + // If there are duplicated quotes, trim them away + return ($str[0] === "'") + ? substr($str, 1, -1) + : $str; } // -------------------------------------------------------------------- /** - * From Tables - * - * This function implicitly groups FROM tables so there is no confusion - * about operator precedence in harmony with SQL standards + * Affected Rows * - * @access public - * @param type - * @return type + * @return int */ - function _from_tables($tables) + public function affected_rows() { - if ( ! is_array($tables)) - { - $tables = array($tables); - } - - return (count($tables) == 1) ? $tables[0] : '('.implode(', ', $tables).')'; + return is_object($this->result_id) ? $this->result_id->rowCount() : 0; } // -------------------------------------------------------------------- /** - * Insert statement - * - * Generates a platform-specific insert string from the supplied data - * - * @access public - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - function _insert($table, $keys, $values) - { - return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")"; - } - - // -------------------------------------------------------------------- - - /** - * Insert_batch statement - * - * Generates a platform-specific insert string from the supplied data + * Insert ID * - * @access public - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string + * @param string $name + * @return int */ - function _insert_batch($table, $keys, $values) + public function insert_id($name = NULL) { - return "INSERT INTO ".$table." (".implode(', ', $keys).") VALUES ".implode(', ', $values); + return $this->conn_id->lastInsertId($name); } // -------------------------------------------------------------------- /** - * Update statement + * Field data query * - * Generates a platform-specific update string from the supplied data + * Generates a platform-specific query so that the column data can be retrieved * - * @access public - * @param string the table name - * @param array the update data - * @param array the where clause - * @param array the orderby clause - * @param array the limit clause + * @param string $table * @return string */ - function _update($table, $values, $where, $orderby = array(), $limit = FALSE) + protected function _field_data($table) { - foreach ($values as $key => $val) - { - $valstr[] = $key." = ".$val; - } - - $limit = ( ! $limit) ? '' : ' LIMIT '.$limit; - - $orderby = (count($orderby) >= 1)?' ORDER BY '.implode(", ", $orderby):''; - - $sql = "UPDATE ".$table." SET ".implode(', ', $valstr); - - $sql .= ($where != '' AND count($where) >=1) ? " WHERE ".implode(" ", $where) : ''; - - $sql .= $orderby.$limit; - - return $sql; + return 'SELECT TOP 1 * FROM '.$this->protect_identifiers($table); } - + // -------------------------------------------------------------------- /** - * Update_Batch statement + * Error * - * Generates a platform-specific batch update string from the supplied data + * Returns an array containing code and message of the last + * database error that has occurred. * - * @access public - * @param string the table name - * @param array the update data - * @param array the where clause - * @return string + * @return array */ - function _update_batch($table, $values, $index, $where = NULL) + public function error() { - $ids = array(); - $where = ($where != '' AND count($where) >=1) ? implode(" ", $where).' AND ' : ''; + $error = array('code' => '00000', 'message' => ''); + $pdo_error = $this->conn_id->errorInfo(); - foreach ($values as $key => $val) + if (empty($pdo_error[0])) { - $ids[] = $val[$index]; - - foreach (array_keys($val) as $field) - { - if ($field != $index) - { - $final[$field][] = 'WHEN '.$index.' = '.$val[$index].' THEN '.$val[$field]; - } - } + return $error; } - $sql = "UPDATE ".$table." SET "; - $cases = ''; - - foreach ($final as $k => $v) + $error['code'] = isset($pdo_error[1]) ? $pdo_error[0].'/'.$pdo_error[1] : $pdo_error[0]; + if (isset($pdo_error[2])) { - $cases .= $k.' = CASE '."\n"; - foreach ($v as $row) - { - $cases .= $row."\n"; - } - - $cases .= 'ELSE '.$k.' END, '; + $error['message'] = $pdo_error[2]; } - $sql .= substr($cases, 0, -2); - - $sql .= ' WHERE '.$where.$index.' IN ('.implode(',', $ids).')'; - - return $sql; + return $error; } - // -------------------------------------------------------------------- /** * Truncate statement * * Generates a platform-specific truncate string from the supplied data - * If the database does not support the truncate() command - * This function maps to "DELETE FROM table" - * - * @access public - * @param string the table name - * @return string - */ - function _truncate($table) - { - return $this->_delete($table); - } - - // -------------------------------------------------------------------- - - /** - * Delete statement - * - * Generates a platform-specific delete string from the supplied data - * - * @access public - * @param string the table name - * @param array the where clause - * @param string the limit clause - * @return string - */ - function _delete($table, $where = array(), $like = array(), $limit = FALSE) - { - $conditions = ''; - - if (count($where) > 0 OR count($like) > 0) - { - $conditions = "\nWHERE "; - $conditions .= implode("\n", $this->ar_where); - - if (count($where) > 0 && count($like) > 0) - { - $conditions .= " AND "; - } - $conditions .= implode("\n", $like); - } - - $limit = ( ! $limit) ? '' : ' LIMIT '.$limit; - - return "DELETE FROM ".$table.$conditions.$limit; - } - - // -------------------------------------------------------------------- - - /** - * Limit string * - * Generates a platform-specific LIMIT clause + * If the database does not support the TRUNCATE statement, + * then this method maps to 'DELETE FROM table' * - * @access public - * @param string the sql query string - * @param integer the number of rows to limit the query to - * @param integer the offset value + * @param string $table * @return string */ - function _limit($sql, $limit, $offset) - { - if (strpos($this->hostname, 'cubrid') !== FALSE || strpos($this->hostname, 'sqlite') !== FALSE) - { - if ($offset == 0) - { - $offset = ''; - } - else - { - $offset .= ", "; - } - - return $sql."LIMIT ".$offset.$limit; - } - else - { - $sql .= "LIMIT ".$limit; - - if ($offset > 0) - { - $sql .= " OFFSET ".$offset; - } - - return $sql; - } - } - - // -------------------------------------------------------------------- - - /** - * Close DB Connection - * - * @access public - * @param resource - * @return void - */ - function _close($conn_id) + protected function _truncate($table) { - $this->conn_id = null; + return 'TRUNCATE TABLE '.$table; } - } - - - -/* End of file pdo_driver.php */ -/* Location: ./system/database/drivers/pdo/pdo_driver.php */
\ No newline at end of file diff --git a/system/database/drivers/pdo/pdo_forge.php b/system/database/drivers/pdo/pdo_forge.php index f7beb0a9a..685b6776d 100644 --- a/system/database/drivers/pdo/pdo_forge.php +++ b/system/database/drivers/pdo/pdo_forge.php @@ -1,266 +1,65 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * An open source application development framework for PHP * - * @package CodeIgniter - * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. - * @license http://codeigniter.com/user_guide/license.html - * @author EllisLab Dev Team - * @link http://codeigniter.com - * @since Version 2.1.2 + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 2.1.0 * @filesource */ - -// ------------------------------------------------------------------------ +defined('BASEPATH') OR exit('No direct script access allowed'); /** * PDO Forge Class * + * @package CodeIgniter + * @subpackage Drivers * @category Database * @author EllisLab Dev Team - * @link http://codeigniter.com/database/ + * @link https://codeigniter.com/database/ */ class CI_DB_pdo_forge extends CI_DB_forge { /** - * Create database - * - * @access private - * @param string the database name - * @return bool - */ - function _create_database() - { - // PDO has no "create database" command since it's - // designed to connect to an existing database - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Drop database - * - * @access private - * @param string the database name - * @return bool - */ - function _drop_database($name) - { - // PDO has no "drop database" command since it's - // designed to connect to an existing database - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Create Table - * - * @access private - * @param string the table name - * @param array the fields - * @param mixed primary key(s) - * @param mixed key(s) - * @param boolean should 'IF NOT EXISTS' be added to the SQL - * @return bool - */ - function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) - { - $sql = 'CREATE TABLE '; - - if ($if_not_exists === TRUE) - { - $sql .= 'IF NOT EXISTS '; - } - - $sql .= $this->db->_escape_identifiers($table)." ("; - $current_field_count = 0; - - foreach ($fields as $field=>$attributes) - { - // Numeric field names aren't allowed in databases, so if the key is - // numeric, we know it was assigned by PHP and the developer manually - // entered the field information, so we'll simply add it to the list - if (is_numeric($field)) - { - $sql .= "\n\t$attributes"; - } - else - { - $attributes = array_change_key_case($attributes, CASE_UPPER); - - $sql .= "\n\t".$this->db->_protect_identifiers($field); - - $sql .= ' '.$attributes['TYPE']; - - if (array_key_exists('CONSTRAINT', $attributes)) - { - $sql .= '('.$attributes['CONSTRAINT'].')'; - } - - if (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE) - { - $sql .= ' UNSIGNED'; - } - - if (array_key_exists('DEFAULT', $attributes)) - { - $sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\''; - } - - if (array_key_exists('NULL', $attributes) && $attributes['NULL'] === TRUE) - { - $sql .= ' NULL'; - } - else - { - $sql .= ' NOT NULL'; - } - - if (array_key_exists('AUTO_INCREMENT', $attributes) && $attributes['AUTO_INCREMENT'] === TRUE) - { - $sql .= ' AUTO_INCREMENT'; - } - } - - // don't add a comma on the end of the last field - if (++$current_field_count < count($fields)) - { - $sql .= ','; - } - } - - if (count($primary_keys) > 0) - { - $primary_keys = $this->db->_protect_identifiers($primary_keys); - $sql .= ",\n\tPRIMARY KEY (" . implode(', ', $primary_keys) . ")"; - } - - if (is_array($keys) && count($keys) > 0) - { - foreach ($keys as $key) - { - if (is_array($key)) - { - $key = $this->db->_protect_identifiers($key); - } - else - { - $key = array($this->db->_protect_identifiers($key)); - } - - $sql .= ",\n\tFOREIGN KEY (" . implode(', ', $key) . ")"; - } - } - - $sql .= "\n)"; - - return $sql; - } - - // -------------------------------------------------------------------- - - /** - * Drop Table + * CREATE TABLE IF statement * - * @access private - * @return bool + * @var string */ - function _drop_table($table) - { - // Not a supported PDO feature - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- + protected $_create_table_if = FALSE; /** - * Alter table query + * DROP TABLE IF statement * - * Generates a platform-specific query so that a table can be altered - * Called by add_column(), drop_column(), and column_alter(), - * - * @access private - * @param string the ALTER type (ADD, DROP, CHANGE) - * @param string the column name - * @param string the table name - * @param string the column definition - * @param string the default value - * @param boolean should 'NOT NULL' be added - * @param string the field after which we should add the new field - * @return object + * @var string */ - function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '') - { - $sql = 'ALTER TABLE '.$this->db->_protect_identifiers($table)." $alter_type ".$this->db->_protect_identifiers($column_name); - - // DROP has everything it needs now. - if ($alter_type == 'DROP') - { - return $sql; - } - - $sql .= " $column_definition"; - - if ($default_value != '') - { - $sql .= " DEFAULT \"$default_value\""; - } - - if ($null === NULL) - { - $sql .= ' NULL'; - } - else - { - $sql .= ' NOT NULL'; - } - - if ($after_field != '') - { - $sql .= ' AFTER ' . $this->db->_protect_identifiers($after_field); - } - - return $sql; - - } - - - // -------------------------------------------------------------------- - - /** - * Rename a table - * - * Generates a platform-specific query so that a table can be renamed - * - * @access private - * @param string the old table name - * @param string the new table name - * @return string - */ - function _rename_table($table_name, $new_table_name) - { - $sql = 'ALTER TABLE '.$this->db->_protect_identifiers($table_name)." RENAME TO ".$this->db->_protect_identifiers($new_table_name); - return $sql; - } - + protected $_drop_table_if = FALSE; } - -/* End of file pdo_forge.php */ -/* Location: ./system/database/drivers/pdo/pdo_forge.php */
\ No newline at end of file diff --git a/system/database/drivers/pdo/pdo_result.php b/system/database/drivers/pdo/pdo_result.php index 4843df43b..bbc2cdc5a 100644 --- a/system/database/drivers/pdo/pdo_result.php +++ b/system/database/drivers/pdo/pdo_result.php @@ -1,33 +1,55 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * An open source application development framework for PHP * - * @package CodeIgniter - * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. - * @license http://codeigniter.com/user_guide/license.html - * @author EllisLab Dev Team - * @link http://codeigniter.com - * @since Version 2.1.2 + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 2.1.0 * @filesource */ - -// ------------------------------------------------------------------------ +defined('BASEPATH') OR exit('No direct script access allowed'); /** * PDO Result Class * * This class extends the parent result class: CI_DB_result * + * @package CodeIgniter + * @subpackage Drivers * @category Database * @author EllisLab Dev Team - * @link http://codeigniter.com/user_guide/database/ + * @link https://codeigniter.com/user_guide/database/ */ class CI_DB_pdo_result extends CI_DB_result { - public $num_rows; - /** * Number of rows in the result set * @@ -39,14 +61,20 @@ class CI_DB_pdo_result extends CI_DB_result { { return $this->num_rows; } - elseif (($this->num_rows = $this->result_id->rowCount()) > 0) + elseif (count($this->result_array) > 0) { - return $this->num_rows; + return $this->num_rows = count($this->result_array); + } + elseif (count($this->result_object) > 0) + { + return $this->num_rows = count($this->result_object); + } + elseif (($num_rows = $this->result_id->rowCount()) > 0) + { + return $this->num_rows = $num_rows; } - $this->num_rows = count($this->result_id->fetchAll()); - $this->result_id->execute(); - return $this->num_rows; + return $this->num_rows = count($this->result_array()); } // -------------------------------------------------------------------- @@ -54,10 +82,9 @@ class CI_DB_pdo_result extends CI_DB_result { /** * Number of fields in the result set * - * @access public - * @return integer + * @return int */ - function num_fields() + public function num_fields() { return $this->result_id->columnCount(); } @@ -69,16 +96,20 @@ class CI_DB_pdo_result extends CI_DB_result { * * Generates an array of column names * - * @access public - * @return array + * @return bool */ - function list_fields() + public function list_fields() { - if ($this->db->db_debug) + $field_names = array(); + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) { - return $this->db->display_error('db_unsuported_feature'); + // Might trigger an E_WARNING due to not all subdrivers + // supporting getColumnMeta() + $field_names[$i] = @$this->result_id->getColumnMeta($i); + $field_names[$i] = $field_names[$i]['name']; } - return FALSE; + + return $field_names; } // -------------------------------------------------------------------- @@ -88,28 +119,34 @@ class CI_DB_pdo_result extends CI_DB_result { * * Generates an array of objects containing field meta-data * - * @access public * @return array */ - function field_data() + public function field_data() { - $data = array(); - try { - for($i = 0; $i < $this->num_fields(); $i++) + $retval = array(); + + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) { - $data[] = $this->result_id->getColumnMeta($i); + $field = $this->result_id->getColumnMeta($i); + + $retval[$i] = new stdClass(); + $retval[$i]->name = $field['name']; + $retval[$i]->type = $field['native_type']; + $retval[$i]->max_length = ($field['len'] > 0) ? $field['len'] : NULL; + $retval[$i]->primary_key = (int) ( ! empty($field['flags']) && in_array('primary_key', $field['flags'], TRUE)); } - - return $data; + + return $retval; } catch (Exception $e) { if ($this->db->db_debug) { - return $this->db->display_error('db_unsuported_feature'); + return $this->db->display_error('db_unsupported_feature'); } + return FALSE; } } @@ -119,9 +156,9 @@ class CI_DB_pdo_result extends CI_DB_result { /** * Free the result * - * @return null + * @return void */ - function free_result() + public function free_result() { if (is_object($this->result_id)) { @@ -132,31 +169,13 @@ class CI_DB_pdo_result extends CI_DB_result { // -------------------------------------------------------------------- /** - * Data Seek - * - * Moves the internal pointer to the desired offset. We call - * this internally before fetching results to make sure the - * result set starts at zero - * - * @access private - * @return array - */ - function _data_seek($n = 0) - { - return FALSE; - } - - // -------------------------------------------------------------------- - - /** * Result - associative array * * Returns the result set as an array * - * @access private * @return array */ - function _fetch_assoc() + protected function _fetch_assoc() { return $this->result_id->fetch(PDO::FETCH_ASSOC); } @@ -168,16 +187,12 @@ class CI_DB_pdo_result extends CI_DB_result { * * Returns the result set as an object * - * @access private + * @param string $class_name * @return object */ - function _fetch_object() - { - return $this->result_id->fetchObject(); + protected function _fetch_object($class_name = 'stdClass') + { + return $this->result_id->fetchObject($class_name); } } - - -/* End of file pdo_result.php */ -/* Location: ./system/database/drivers/pdo/pdo_result.php */
\ No newline at end of file diff --git a/system/database/drivers/pdo/pdo_utility.php b/system/database/drivers/pdo/pdo_utility.php index 042ccef8d..5029cac94 100644 --- a/system/database/drivers/pdo/pdo_utility.php +++ b/system/database/drivers/pdo/pdo_utility.php @@ -1,103 +1,63 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * An open source application development framework for PHP * - * @package CodeIgniter - * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. - * @license http://codeigniter.com/user_guide/license.html - * @author EllisLab Dev Team - * @link http://codeigniter.com - * @since Version 2.1.2 + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 2.1.0 * @filesource */ - -// ------------------------------------------------------------------------ +defined('BASEPATH') OR exit('No direct script access allowed'); /** * PDO Utility Class * + * @package CodeIgniter + * @subpackage Drivers * @category Database * @author EllisLab Dev Team - * @link http://codeigniter.com/database/ + * @link https://codeigniter.com/database/ */ class CI_DB_pdo_utility extends CI_DB_utility { /** - * List databases - * - * @access private - * @return bool - */ - function _list_databases() - { - // Not sure if PDO lets you list all databases... - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Optimize table query - * - * Generates a platform-specific query so that a table can be optimized + * Export * - * @access private - * @param string the table name - * @return object - */ - function _optimize_table($table) - { - // Not a supported PDO feature - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Repair table query - * - * Generates a platform-specific query so that a table can be repaired - * - * @access private - * @param string the table name - * @return object - */ - function _repair_table($table) - { - // Not a supported PDO feature - if ($this->db->db_debug) - { - return $this->db->display_error('db_unsuported_feature'); - } - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * PDO Export - * - * @access private - * @param array Preferences + * @param array $params Preferences * @return mixed */ - function _backup($params = array()) + protected function _backup($params = array()) { // Currently unsupported - return $this->db->display_error('db_unsuported_feature'); + return $this->db->display_error('db_unsupported_feature'); } } - -/* End of file pdo_utility.php */ -/* Location: ./system/database/drivers/pdo/pdo_utility.php */
\ No newline at end of file diff --git a/system/database/drivers/pdo/subdrivers/index.html b/system/database/drivers/pdo/subdrivers/index.html new file mode 100644 index 000000000..b702fbc39 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/index.html @@ -0,0 +1,11 @@ +<!DOCTYPE html> +<html> +<head> + <title>403 Forbidden</title> +</head> +<body> + +<p>Directory access is forbidden.</p> + +</body> +</html> diff --git a/system/database/drivers/pdo/subdrivers/pdo_4d_driver.php b/system/database/drivers/pdo/subdrivers/pdo_4d_driver.php new file mode 100644 index 000000000..7eaeaa1fd --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_4d_driver.php @@ -0,0 +1,200 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO 4D Database Adapter Class + * + * Note: _DB is an extender class that the app controller + * creates dynamically based on whether the query builder + * class is being used or not. + * + * @package CodeIgniter + * @subpackage Drivers + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_4d_driver extends CI_DB_pdo_driver { + + /** + * Sub-driver + * + * @var string + */ + public $subdriver = '4d'; + + /** + * Identifier escape character + * + * @var string[] + */ + protected $_escape_char = array('[', ']'); + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * Builds the DSN if not already set. + * + * @param array $params + * @return void + */ + public function __construct($params) + { + parent::__construct($params); + + if (empty($this->dsn)) + { + $this->dsn = '4D:host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname); + + empty($this->port) OR $this->dsn .= ';port='.$this->port; + empty($this->database) OR $this->dsn .= ';dbname='.$this->database; + empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set; + } + elseif ( ! empty($this->char_set) && strpos($this->dsn, 'charset=', 3) === FALSE) + { + $this->dsn .= ';charset='.$this->char_set; + } + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT '.$this->escape_identifiers('TABLE_NAME').' FROM '.$this->escape_identifiers('_USER_TABLES'); + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + $sql .= ' WHERE '.$this->escape_identifiers('TABLE_NAME')." LIKE '".$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SELECT '.$this->escape_identifiers('COLUMN_NAME').' FROM '.$this->escape_identifiers('_USER_COLUMNS') + .' WHERE '.$this->escape_identifiers('TABLE_NAME').' = '.$this->escape($table); + } + + // -------------------------------------------------------------------- + + /** + * Field data query + * + * Generates a platform-specific query so that the column data can be retrieved + * + * @param string $table + * @return string + */ + protected function _field_data($table) + { + return 'SELECT * FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE).' LIMIT 1'; + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string $table + * @param array $values + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + $this->qb_limit = FALSE; + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + return $sql.' LIMIT '.$this->qb_limit.($this->qb_offset ? ' OFFSET '.$this->qb_offset : ''); + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_4d_forge.php b/system/database/drivers/pdo/subdrivers/pdo_4d_forge.php new file mode 100644 index 000000000..3f636d3bd --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_4d_forge.php @@ -0,0 +1,217 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO 4D Forge Class + * + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_4d_forge extends CI_DB_pdo_forge { + + /** + * CREATE DATABASE statement + * + * @var string + */ + protected $_create_database = 'CREATE SCHEMA %s'; + + /** + * DROP DATABASE statement + * + * @var string + */ + protected $_drop_database = 'DROP SCHEMA %s'; + + /** + * CREATE TABLE IF statement + * + * @var string + */ + protected $_create_table_if = 'CREATE TABLE IF NOT EXISTS'; + + /** + * RENAME TABLE statement + * + * @var string + */ + protected $_rename_table = FALSE; + + /** + * DROP TABLE IF statement + * + * @var string + */ + protected $_drop_table_if = 'DROP TABLE IF EXISTS'; + + /** + * UNSIGNED support + * + * @var array + */ + protected $_unsigned = array( + 'INT16' => 'INT', + 'SMALLINT' => 'INT', + 'INT' => 'INT64', + 'INT32' => 'INT64' + ); + + /** + * DEFAULT value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_default = FALSE; + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('ADD', 'DROP'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + // No method of modifying columns is supported + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + return $this->db->escape_identifiers($field['name']) + .' '.$field['type'].$field['length'] + .$field['null'] + .$field['unique'] + .$field['auto_increment']; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'INTEGER': + $attributes['TYPE'] = 'INT'; + return; + case 'BIGINT': + $attributes['TYPE'] = 'INT64'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute UNIQUE + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_unique(&$attributes, &$field) + { + if ( ! empty($attributes['UNIQUE']) && $attributes['UNIQUE'] === TRUE) + { + $field['unique'] = ' UNIQUE'; + + // UNIQUE must be used with NOT NULL + $field['null'] = ' NOT NULL'; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE) + { + if (stripos($field['type'], 'int') !== FALSE) + { + $field['auto_increment'] = ' AUTO_INCREMENT'; + } + elseif (strcasecmp($field['type'], 'UUID') === 0) + { + $field['auto_increment'] = ' AUTO_GENERATE'; + } + } + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_cubrid_driver.php b/system/database/drivers/pdo/subdrivers/pdo_cubrid_driver.php new file mode 100644 index 000000000..fc49e0dd0 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_cubrid_driver.php @@ -0,0 +1,209 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO CUBRID Database Adapter Class + * + * Note: _DB is an extender class that the app controller + * creates dynamically based on whether the query builder + * class is being used or not. + * + * @package CodeIgniter + * @subpackage Drivers + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_cubrid_driver extends CI_DB_pdo_driver { + + /** + * Sub-driver + * + * @var string + */ + public $subdriver = 'cubrid'; + + /** + * Identifier escape character + * + * @var string + */ + protected $_escape_char = '`'; + + /** + * ORDER BY random keyword + * + * @var array + */ + protected $_random_keyword = array('RANDOM()', 'RANDOM(%d)'); + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * Builds the DSN if not already set. + * + * @param array $params + * @return void + */ + public function __construct($params) + { + parent::__construct($params); + + if (empty($this->dsn)) + { + $this->dsn = 'cubrid:host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname); + + empty($this->port) OR $this->dsn .= ';port='.$this->port; + empty($this->database) OR $this->dsn .= ';dbname='.$this->database; + empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set; + } + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SHOW TABLES'; + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + return $sql." LIKE '".$this->escape_like_str($this->dbprefix)."%'"; + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + if (($query = $this->query('SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE))) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->Field; + + sscanf($query[$i]->Type, '%[a-z](%d)', + $retval[$i]->type, + $retval[$i]->max_length + ); + + $retval[$i]->default = $query[$i]->Default; + $retval[$i]->primary_key = (int) ($query[$i]->Key === 'PRI'); + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the TRUNCATE statement, + * then this method maps to 'DELETE FROM table' + * + * @param string $table + * @return string + */ + protected function _truncate($table) + { + return 'TRUNCATE '.$table; + } + + // -------------------------------------------------------------------- + + /** + * FROM tables + * + * Groups tables in FROM clauses if needed, so there is no confusion + * about operator precedence. + * + * @return string + */ + protected function _from_tables() + { + if ( ! empty($this->qb_join) && count($this->qb_from) > 1) + { + return '('.implode(', ', $this->qb_from).')'; + } + + return implode(', ', $this->qb_from); + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_cubrid_forge.php b/system/database/drivers/pdo/subdrivers/pdo_cubrid_forge.php new file mode 100644 index 000000000..276cbb6bc --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_cubrid_forge.php @@ -0,0 +1,230 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO CUBRID Forge Class + * + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_cubrid_forge extends CI_DB_pdo_forge { + + /** + * CREATE DATABASE statement + * + * @var string + */ + protected $_create_database = FALSE; + + /** + * DROP DATABASE statement + * + * @var string + */ + protected $_drop_database = FALSE; + + /** + * CREATE TABLE keys flag + * + * Whether table keys are created from within the + * CREATE TABLE statement. + * + * @var bool + */ + protected $_create_table_keys = TRUE; + + /** + * DROP TABLE IF statement + * + * @var string + */ + protected $_drop_table_if = 'DROP TABLE IF EXISTS'; + + /** + * UNSIGNED support + * + * @var array + */ + protected $_unsigned = array( + 'SHORT' => 'INTEGER', + 'SMALLINT' => 'INTEGER', + 'INT' => 'BIGINT', + 'INTEGER' => 'BIGINT', + 'BIGINT' => 'NUMERIC', + 'FLOAT' => 'DOUBLE', + 'REAL' => 'DOUBLE' + ); + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('DROP', 'ADD'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + $sqls[] = $sql.' CHANGE '.$field[$i]['_literal']; + } + else + { + $alter_type = empty($field[$i]['new_name']) ? ' MODIFY ' : ' CHANGE '; + $sqls[] = $sql.$alter_type.$this->_process_column($field[$i]); + } + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + $extra_clause = isset($field['after']) + ? ' AFTER '.$this->db->escape_identifiers($field['after']) : ''; + + if (empty($extra_clause) && isset($field['first']) && $field['first'] === TRUE) + { + $extra_clause = ' FIRST'; + } + + return $this->db->escape_identifiers($field['name']) + .(empty($field['new_name']) ? '' : ' '.$this->db->escape_identifiers($field['new_name'])) + .' '.$field['type'].$field['length'] + .$field['unsigned'] + .$field['null'] + .$field['default'] + .$field['auto_increment'] + .$field['unique'] + .$extra_clause; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'LONGTEXT': + $attributes['TYPE'] = 'STRING'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Process indexes + * + * @param string $table (ignored) + * @return string + */ + protected function _process_indexes($table) + { + $sql = ''; + + for ($i = 0, $c = count($this->keys); $i < $c; $i++) + { + if (is_array($this->keys[$i])) + { + for ($i2 = 0, $c2 = count($this->keys[$i]); $i2 < $c2; $i2++) + { + if ( ! isset($this->fields[$this->keys[$i][$i2]])) + { + unset($this->keys[$i][$i2]); + continue; + } + } + } + elseif ( ! isset($this->fields[$this->keys[$i]])) + { + unset($this->keys[$i]); + continue; + } + + is_array($this->keys[$i]) OR $this->keys[$i] = array($this->keys[$i]); + + $sql .= ",\n\tKEY ".$this->db->escape_identifiers(implode('_', $this->keys[$i])) + .' ('.implode(', ', $this->db->escape_identifiers($this->keys[$i])).')'; + } + + $this->keys = array(); + + return $sql; + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php b/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php new file mode 100644 index 000000000..08243232e --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php @@ -0,0 +1,337 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO DBLIB Database Adapter Class + * + * Note: _DB is an extender class that the app controller + * creates dynamically based on whether the query builder + * class is being used or not. + * + * @package CodeIgniter + * @subpackage Drivers + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_dblib_driver extends CI_DB_pdo_driver { + + /** + * Sub-driver + * + * @var string + */ + public $subdriver = 'dblib'; + + // -------------------------------------------------------------------- + + /** + * ORDER BY random keyword + * + * @var array + */ + protected $_random_keyword = array('NEWID()', 'RAND(%d)'); + + /** + * Quoted identifier flag + * + * Whether to use SQL-92 standard quoted identifier + * (double quotes) or brackets for identifier escaping. + * + * @var bool + */ + protected $_quoted_identifier; + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * Builds the DSN if not already set. + * + * @param array $params + * @return void + */ + public function __construct($params) + { + parent::__construct($params); + + if (empty($this->dsn)) + { + $this->dsn = $params['subdriver'].':host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname); + + if ( ! empty($this->port)) + { + $this->dsn .= (DIRECTORY_SEPARATOR === '\\' ? ',' : ':').$this->port; + } + + empty($this->database) OR $this->dsn .= ';dbname='.$this->database; + empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set; + empty($this->appname) OR $this->dsn .= ';appname='.$this->appname; + } + else + { + if ( ! empty($this->char_set) && strpos($this->dsn, 'charset=', 6) === FALSE) + { + $this->dsn .= ';charset='.$this->char_set; + } + + $this->subdriver = 'dblib'; + } + } + + // -------------------------------------------------------------------- + + /** + * Database connection + * + * @param bool $persistent + * @return object + */ + public function db_connect($persistent = FALSE) + { + if ($persistent === TRUE) + { + log_message('debug', "dblib driver doesn't support persistent connections"); + } + + $this->conn_id = parent::db_connect(FALSE); + + if ( ! is_object($this->conn_id)) + { + return $this->conn_id; + } + + // Determine how identifiers are escaped + $query = $this->query('SELECT CASE WHEN (@@OPTIONS | 256) = @@OPTIONS THEN 1 ELSE 0 END AS qi'); + $query = $query->row_array(); + $this->_quoted_identifier = empty($query) ? FALSE : (bool) $query['qi']; + $this->_escape_char = ($this->_quoted_identifier) ? '"' : array('[', ']'); + + return $this->conn_id; + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT '.$this->escape_identifiers('name') + .' FROM '.$this->escape_identifiers('sysobjects') + .' WHERE '.$this->escape_identifiers('type')." = 'U'"; + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + $sql .= ' AND '.$this->escape_identifiers('name')." LIKE '".$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql.' ORDER BY '.$this->escape_identifiers('name'); + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SELECT COLUMN_NAME + FROM INFORMATION_SCHEMA.Columns + WHERE UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table)); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + $sql = 'SELECT COLUMN_NAME, DATA_TYPE, CHARACTER_MAXIMUM_LENGTH, NUMERIC_PRECISION, COLUMN_DEFAULT + FROM INFORMATION_SCHEMA.Columns + WHERE UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table)); + + if (($query = $this->query($sql)) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->COLUMN_NAME; + $retval[$i]->type = $query[$i]->DATA_TYPE; + $retval[$i]->max_length = ($query[$i]->CHARACTER_MAXIMUM_LENGTH > 0) ? $query[$i]->CHARACTER_MAXIMUM_LENGTH : $query[$i]->NUMERIC_PRECISION; + $retval[$i]->default = $query[$i]->COLUMN_DEFAULT; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string $table + * @param array $values + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + if ($this->qb_limit) + { + return 'WITH ci_delete AS (SELECT TOP '.$this->qb_limit.' * FROM '.$table.$this->_compile_wh('qb_where').') DELETE FROM ci_delete'; + } + + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + $limit = $this->qb_offset + $this->qb_limit; + + // As of SQL Server 2005 (9.0.*) ROW_NUMBER() is supported, + // however an ORDER BY clause is required for it to work + if (version_compare($this->version(), '9', '>=') && $this->qb_offset && ! empty($this->qb_orderby)) + { + $orderby = $this->_compile_order_by(); + + // We have to strip the ORDER BY clause + $sql = trim(substr($sql, 0, strrpos($sql, $orderby))); + + // Get the fields to select from our subquery, so that we can avoid CI_rownum appearing in the actual results + if (count($this->qb_select) === 0) + { + $select = '*'; // Inevitable + } + else + { + // Use only field names and their aliases, everything else is out of our scope. + $select = array(); + $field_regexp = ($this->_quoted_identifier) + ? '("[^\"]+")' : '(\[[^\]]+\])'; + for ($i = 0, $c = count($this->qb_select); $i < $c; $i++) + { + $select[] = preg_match('/(?:\s|\.)'.$field_regexp.'$/i', $this->qb_select[$i], $m) + ? $m[1] : $this->qb_select[$i]; + } + $select = implode(', ', $select); + } + + return 'SELECT '.$select." FROM (\n\n" + .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.trim($orderby).') AS '.$this->escape_identifiers('CI_rownum').', ', $sql) + ."\n\n) ".$this->escape_identifiers('CI_subquery') + ."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.($this->qb_offset + 1).' AND '.$limit; + } + + return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$limit.' ', $sql); + } + + // -------------------------------------------------------------------- + + /** + * Insert batch statement + * + * Generates a platform-specific insert string from the supplied data. + * + * @param string $table Table name + * @param array $keys INSERT keys + * @param array $values INSERT values + * @return string|bool + */ + protected function _insert_batch($table, $keys, $values) + { + // Multiple-value inserts are only supported as of SQL Server 2008 + if (version_compare($this->version(), '10', '>=')) + { + return parent::_insert_batch($table, $keys, $values); + } + + return ($this->db_debug) ? $this->display_error('db_unsupported_feature') : FALSE; + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_dblib_forge.php b/system/database/drivers/pdo/subdrivers/pdo_dblib_forge.php new file mode 100644 index 000000000..d0cca38dd --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_dblib_forge.php @@ -0,0 +1,149 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO DBLIB Forge Class + * + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_dblib_forge extends CI_DB_pdo_forge { + + /** + * CREATE TABLE IF statement + * + * @var string + */ + protected $_create_table_if = "IF NOT EXISTS (SELECT * FROM sysobjects WHERE ID = object_id(N'%s') AND OBJECTPROPERTY(id, N'IsUserTable') = 1)\nCREATE TABLE"; + + /** + * DROP TABLE IF statement + * + * @var string + */ + protected $_drop_table_if = "IF EXISTS (SELECT * FROM sysobjects WHERE ID = object_id(N'%s') AND OBJECTPROPERTY(id, N'IsUserTable') = 1)\nDROP TABLE"; + + /** + * UNSIGNED support + * + * @var array + */ + protected $_unsigned = array( + 'TINYINT' => 'SMALLINT', + 'SMALLINT' => 'INT', + 'INT' => 'BIGINT', + 'REAL' => 'FLOAT' + ); + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('ADD', 'DROP'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table).' ALTER COLUMN '; + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + $sqls[] = $sql.$this->_process_column($field[$i]); + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + if (isset($attributes['CONSTRAINT']) && strpos($attributes['TYPE'], 'INT') !== FALSE) + { + unset($attributes['CONSTRAINT']); + } + + switch (strtoupper($attributes['TYPE'])) + { + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'INTEGER': + $attributes['TYPE'] = 'INT'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'int') !== FALSE) + { + $field['auto_increment'] = ' IDENTITY(1,1)'; + } + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_firebird_driver.php b/system/database/drivers/pdo/subdrivers/pdo_firebird_driver.php new file mode 100644 index 000000000..cb93f19b7 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_firebird_driver.php @@ -0,0 +1,279 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO Firebird Database Adapter Class + * + * Note: _DB is an extender class that the app controller + * creates dynamically based on whether the query builder + * class is being used or not. + * + * @package CodeIgniter + * @subpackage Drivers + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_firebird_driver extends CI_DB_pdo_driver { + + /** + * Sub-driver + * + * @var string + */ + public $subdriver = 'firebird'; + + // -------------------------------------------------------------------- + + /** + * ORDER BY random keyword + * + * @var array + */ + protected $_random_keyword = array('RAND()', 'RAND()'); + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * Builds the DSN if not already set. + * + * @param array $params + * @return void + */ + public function __construct($params) + { + parent::__construct($params); + + if (empty($this->dsn)) + { + $this->dsn = 'firebird:'; + + if ( ! empty($this->database)) + { + $this->dsn .= 'dbname='.$this->database; + } + elseif ( ! empty($this->hostname)) + { + $this->dsn .= 'dbname='.$this->hostname; + } + + empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set; + empty($this->role) OR $this->dsn .= ';role='.$this->role; + } + elseif ( ! empty($this->char_set) && strpos($this->dsn, 'charset=', 9) === FALSE) + { + $this->dsn .= ';charset='.$this->char_set; + } + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT "RDB$RELATION_NAME" FROM "RDB$RELATIONS" WHERE "RDB$RELATION_NAME" NOT LIKE \'RDB$%\' AND "RDB$RELATION_NAME" NOT LIKE \'MON$%\''; + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + return $sql.' AND "RDB$RELATION_NAME" LIKE \''.$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SELECT "RDB$FIELD_NAME" FROM "RDB$RELATION_FIELDS" WHERE "RDB$RELATION_NAME" = '.$this->escape($table); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + $sql = 'SELECT "rfields"."RDB$FIELD_NAME" AS "name", + CASE "fields"."RDB$FIELD_TYPE" + WHEN 7 THEN \'SMALLINT\' + WHEN 8 THEN \'INTEGER\' + WHEN 9 THEN \'QUAD\' + WHEN 10 THEN \'FLOAT\' + WHEN 11 THEN \'DFLOAT\' + WHEN 12 THEN \'DATE\' + WHEN 13 THEN \'TIME\' + WHEN 14 THEN \'CHAR\' + WHEN 16 THEN \'INT64\' + WHEN 27 THEN \'DOUBLE\' + WHEN 35 THEN \'TIMESTAMP\' + WHEN 37 THEN \'VARCHAR\' + WHEN 40 THEN \'CSTRING\' + WHEN 261 THEN \'BLOB\' + ELSE NULL + END AS "type", + "fields"."RDB$FIELD_LENGTH" AS "max_length", + "rfields"."RDB$DEFAULT_VALUE" AS "default" + FROM "RDB$RELATION_FIELDS" "rfields" + JOIN "RDB$FIELDS" "fields" ON "rfields"."RDB$FIELD_SOURCE" = "fields"."RDB$FIELD_NAME" + WHERE "rfields"."RDB$RELATION_NAME" = '.$this->escape($table).' + ORDER BY "rfields"."RDB$FIELD_POSITION"'; + + return (($query = $this->query($sql)) !== FALSE) + ? $query->result_object() + : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string $table + * @param array $values + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the TRUNCATE statement, + * then this method maps to 'DELETE FROM table' + * + * @param string $table + * @return string + */ + protected function _truncate($table) + { + return 'DELETE FROM '.$table; + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + $this->qb_limit = FALSE; + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + // Limit clause depends on if Interbase or Firebird + if (stripos($this->version(), 'firebird') !== FALSE) + { + $select = 'FIRST '.$this->qb_limit + .($this->qb_offset > 0 ? ' SKIP '.$this->qb_offset : ''); + } + else + { + $select = 'ROWS ' + .($this->qb_offset > 0 ? $this->qb_offset.' TO '.($this->qb_limit + $this->qb_offset) : $this->qb_limit); + } + + return preg_replace('`SELECT`i', 'SELECT '.$select, $sql); + } + + // -------------------------------------------------------------------- + + /** + * Insert batch statement + * + * Generates a platform-specific insert string from the supplied data. + * + * @param string $table Table name + * @param array $keys INSERT keys + * @param array $values INSERT values + * @return string|bool + */ + protected function _insert_batch($table, $keys, $values) + { + return ($this->db_debug) ? $this->display_error('db_unsupported_feature') : FALSE; + } +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_firebird_forge.php b/system/database/drivers/pdo/subdrivers/pdo_firebird_forge.php new file mode 100644 index 000000000..20c5a6897 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_firebird_forge.php @@ -0,0 +1,237 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO Firebird Forge Class + * + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_firebird_forge extends CI_DB_pdo_forge { + + /** + * RENAME TABLE statement + * + * @var string + */ + protected $_rename_table = FALSE; + + /** + * UNSIGNED support + * + * @var array + */ + protected $_unsigned = array( + 'SMALLINT' => 'INTEGER', + 'INTEGER' => 'INT64', + 'FLOAT' => 'DOUBLE PRECISION' + ); + + /** + * NULL value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_null = 'NULL'; + + // -------------------------------------------------------------------- + + /** + * Create database + * + * @param string $db_name + * @return string + */ + public function create_database($db_name) + { + // Firebird databases are flat files, so a path is required + + // Hostname is needed for remote access + empty($this->db->hostname) OR $db_name = $this->hostname.':'.$db_name; + + return parent::create_database('"'.$db_name.'"'); + } + + // -------------------------------------------------------------------- + + /** + * Drop database + * + * @param string $db_name (ignored) + * @return bool + */ + public function drop_database($db_name) + { + if ( ! ibase_drop_db($this->conn_id)) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + elseif ( ! empty($this->db->data_cache['db_names'])) + { + $key = array_search(strtolower($this->db->database), array_map('strtolower', $this->db->data_cache['db_names']), TRUE); + if ($key !== FALSE) + { + unset($this->db->data_cache['db_names'][$key]); + } + } + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('DROP', 'ADD'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + return FALSE; + } + + if (isset($field[$i]['type'])) + { + $sqls[] = $sql.' ALTER COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' TYPE '.$field[$i]['type'].$field[$i]['length']; + } + + if ( ! empty($field[$i]['default'])) + { + $sqls[] = $sql.' ALTER COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' SET DEFAULT '.$field[$i]['default']; + } + + if (isset($field[$i]['null'])) + { + $sqls[] = 'UPDATE "RDB$RELATION_FIELDS" SET "RDB$NULL_FLAG" = ' + .($field[$i]['null'] === TRUE ? 'NULL' : '1') + .' WHERE "RDB$FIELD_NAME" = '.$this->db->escape($field[$i]['name']) + .' AND "RDB$RELATION_NAME" = '.$this->db->escape($table); + } + + if ( ! empty($field[$i]['new_name'])) + { + $sqls[] = $sql.' ALTER COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' TO '.$this->db->escape_identifiers($field[$i]['new_name']); + } + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + return $this->db->escape_identifiers($field['name']) + .' '.$field['type'].$field['length'] + .$field['null'] + .$field['unique'] + .$field['default']; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'INT': + $attributes['TYPE'] = 'INTEGER'; + return; + case 'BIGINT': + $attributes['TYPE'] = 'INT64'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + // Not supported + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_ibm_driver.php b/system/database/drivers/pdo/subdrivers/pdo_ibm_driver.php new file mode 100644 index 000000000..26b556a78 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_ibm_driver.php @@ -0,0 +1,244 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO IBM DB2 Database Adapter Class + * + * Note: _DB is an extender class that the app controller + * creates dynamically based on whether the query builder + * class is being used or not. + * + * @package CodeIgniter + * @subpackage Drivers + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_ibm_driver extends CI_DB_pdo_driver { + + /** + * Sub-driver + * + * @var string + */ + public $subdriver = 'ibm'; + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * Builds the DSN if not already set. + * + * @param array $params + * @return void + */ + public function __construct($params) + { + parent::__construct($params); + + if (empty($this->dsn)) + { + $this->dsn = 'ibm:'; + + // Pre-defined DSN + if (empty($this->hostname) && empty($this->HOSTNAME) && empty($this->port) && empty($this->PORT)) + { + if (isset($this->DSN)) + { + $this->dsn .= 'DSN='.$this->DSN; + } + elseif ( ! empty($this->database)) + { + $this->dsn .= 'DSN='.$this->database; + } + + return; + } + + $this->dsn .= 'DRIVER='.(isset($this->DRIVER) ? '{'.$this->DRIVER.'}' : '{IBM DB2 ODBC DRIVER}').';'; + + if (isset($this->DATABASE)) + { + $this->dsn .= 'DATABASE='.$this->DATABASE.';'; + } + elseif ( ! empty($this->database)) + { + $this->dsn .= 'DATABASE='.$this->database.';'; + } + + if (isset($this->HOSTNAME)) + { + $this->dsn .= 'HOSTNAME='.$this->HOSTNAME.';'; + } + else + { + $this->dsn .= 'HOSTNAME='.(empty($this->hostname) ? '127.0.0.1;' : $this->hostname.';'); + } + + if (isset($this->PORT)) + { + $this->dsn .= 'PORT='.$this->port.';'; + } + elseif ( ! empty($this->port)) + { + $this->dsn .= ';PORT='.$this->port.';'; + } + + $this->dsn .= 'PROTOCOL='.(isset($this->PROTOCOL) ? $this->PROTOCOL.';' : 'TCPIP;'); + } + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT "tabname" FROM "syscat"."tables" + WHERE "type" = \'T\' AND LOWER("tabschema") = '.$this->escape(strtolower($this->database)); + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + $sql .= ' AND "tabname" LIKE \''.$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return array + */ + protected function _list_columns($table = '') + { + return 'SELECT "colname" FROM "syscat"."columns" + WHERE LOWER("tabschema") = '.$this->escape(strtolower($this->database)).' + AND LOWER("tabname") = '.$this->escape(strtolower($table)); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + $sql = 'SELECT "colname" AS "name", "typename" AS "type", "default" AS "default", "length" AS "max_length", + CASE "keyseq" WHEN NULL THEN 0 ELSE 1 END AS "primary_key" + FROM "syscat"."columns" + WHERE LOWER("tabschema") = '.$this->escape(strtolower($this->database)).' + AND LOWER("tabname") = '.$this->escape(strtolower($table)).' + ORDER BY "colno"'; + + return (($query = $this->query($sql)) !== FALSE) + ? $query->result_object() + : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string $table + * @param array $values + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + $this->qb_limit = FALSE; + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + $sql .= ' FETCH FIRST '.($this->qb_limit + $this->qb_offset).' ROWS ONLY'; + + return ($this->qb_offset) + ? 'SELECT * FROM ('.$sql.') WHERE rownum > '.$this->qb_offset + : $sql; + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_ibm_forge.php b/system/database/drivers/pdo/subdrivers/pdo_ibm_forge.php new file mode 100644 index 000000000..4238ca082 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_ibm_forge.php @@ -0,0 +1,154 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO IBM DB2 Forge Class + * + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_ibm_forge extends CI_DB_pdo_forge { + + /** + * RENAME TABLE IF statement + * + * @var string + */ + protected $_rename_table = 'RENAME TABLE %s TO %s'; + + /** + * UNSIGNED support + * + * @var array + */ + protected $_unsigned = array( + 'SMALLINT' => 'INTEGER', + 'INT' => 'BIGINT', + 'INTEGER' => 'BIGINT' + ); + + /** + * DEFAULT value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_default = FALSE; + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if ($alter_type === 'CHANGE') + { + $alter_type = 'MODIFY'; + } + + return parent::_alter_table($alter_type, $table, $field); + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute UNIQUE + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_unique(&$attributes, &$field) + { + if ( ! empty($attributes['UNIQUE']) && $attributes['UNIQUE'] === TRUE) + { + $field['unique'] = ' UNIQUE'; + + // UNIQUE must be used with NOT NULL + $field['null'] = ' NOT NULL'; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + // Not supported + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_informix_driver.php b/system/database/drivers/pdo/subdrivers/pdo_informix_driver.php new file mode 100644 index 000000000..050171f64 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_informix_driver.php @@ -0,0 +1,309 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO Informix Database Adapter Class + * + * Note: _DB is an extender class that the app controller + * creates dynamically based on whether the query builder + * class is being used or not. + * + * @package CodeIgniter + * @subpackage Drivers + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_informix_driver extends CI_DB_pdo_driver { + + /** + * Sub-driver + * + * @var string + */ + public $subdriver = 'informix'; + + // -------------------------------------------------------------------- + + /** + * ORDER BY random keyword + * + * @var array + */ + protected $_random_keyword = array('ASC', 'ASC'); // Currently not supported + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * Builds the DSN if not already set. + * + * @param array $params + * @return void + */ + public function __construct($params) + { + parent::__construct($params); + + if (empty($this->dsn)) + { + $this->dsn = 'informix:'; + + // Pre-defined DSN + if (empty($this->hostname) && empty($this->host) && empty($this->port) && empty($this->service)) + { + if (isset($this->DSN)) + { + $this->dsn .= 'DSN='.$this->DSN; + } + elseif ( ! empty($this->database)) + { + $this->dsn .= 'DSN='.$this->database; + } + + return; + } + + if (isset($this->host)) + { + $this->dsn .= 'host='.$this->host; + } + else + { + $this->dsn .= 'host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname); + } + + if (isset($this->service)) + { + $this->dsn .= '; service='.$this->service; + } + elseif ( ! empty($this->port)) + { + $this->dsn .= '; service='.$this->port; + } + + empty($this->database) OR $this->dsn .= '; database='.$this->database; + empty($this->server) OR $this->dsn .= '; server='.$this->server; + + $this->dsn .= '; protocol='.(isset($this->protocol) ? $this->protocol : 'onsoctcp') + .'; EnableScrollableCursors=1'; + } + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT "tabname" FROM "systables" + WHERE "tabid" > 99 AND "tabtype" = \'T\' AND LOWER("owner") = '.$this->escape(strtolower($this->username)); + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + $sql .= ' AND "tabname" LIKE \''.$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + if (strpos($table, '.') !== FALSE) + { + sscanf($table, '%[^.].%s', $owner, $table); + } + else + { + $owner = $this->username; + } + + return 'SELECT "colname" FROM "systables", "syscolumns" + WHERE "systables"."tabid" = "syscolumns"."tabid" + AND "systables"."tabtype" = \'T\' + AND LOWER("systables"."owner") = '.$this->escape(strtolower($owner)).' + AND LOWER("systables"."tabname") = '.$this->escape(strtolower($table)); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + $sql = 'SELECT "syscolumns"."colname" AS "name", + CASE "syscolumns"."coltype" + WHEN 0 THEN \'CHAR\' + WHEN 1 THEN \'SMALLINT\' + WHEN 2 THEN \'INTEGER\' + WHEN 3 THEN \'FLOAT\' + WHEN 4 THEN \'SMALLFLOAT\' + WHEN 5 THEN \'DECIMAL\' + WHEN 6 THEN \'SERIAL\' + WHEN 7 THEN \'DATE\' + WHEN 8 THEN \'MONEY\' + WHEN 9 THEN \'NULL\' + WHEN 10 THEN \'DATETIME\' + WHEN 11 THEN \'BYTE\' + WHEN 12 THEN \'TEXT\' + WHEN 13 THEN \'VARCHAR\' + WHEN 14 THEN \'INTERVAL\' + WHEN 15 THEN \'NCHAR\' + WHEN 16 THEN \'NVARCHAR\' + WHEN 17 THEN \'INT8\' + WHEN 18 THEN \'SERIAL8\' + WHEN 19 THEN \'SET\' + WHEN 20 THEN \'MULTISET\' + WHEN 21 THEN \'LIST\' + WHEN 22 THEN \'Unnamed ROW\' + WHEN 40 THEN \'LVARCHAR\' + WHEN 41 THEN \'BLOB/CLOB/BOOLEAN\' + WHEN 4118 THEN \'Named ROW\' + ELSE "syscolumns"."coltype" + END AS "type", + "syscolumns"."collength" as "max_length", + CASE "sysdefaults"."type" + WHEN \'L\' THEN "sysdefaults"."default" + ELSE NULL + END AS "default" + FROM "syscolumns", "systables", "sysdefaults" + WHERE "syscolumns"."tabid" = "systables"."tabid" + AND "systables"."tabid" = "sysdefaults"."tabid" + AND "syscolumns"."colno" = "sysdefaults"."colno" + AND "systables"."tabtype" = \'T\' + AND LOWER("systables"."owner") = '.$this->escape(strtolower($this->username)).' + AND LOWER("systables"."tabname") = '.$this->escape(strtolower($table)).' + ORDER BY "syscolumns"."colno"'; + + return (($query = $this->query($sql)) !== FALSE) + ? $query->result_object() + : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string $table + * @param array $values + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the TRUNCATE statement, + * then this method maps to 'DELETE FROM table' + * + * @param string $table + * @return string + */ + protected function _truncate($table) + { + return 'TRUNCATE TABLE ONLY '.$table; + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + $this->qb_limit = FALSE; + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql $SQL Query + * @return string + */ + protected function _limit($sql) + { + $select = 'SELECT '.($this->qb_offset ? 'SKIP '.$this->qb_offset : '').'FIRST '.$this->qb_limit.' '; + return preg_replace('/^(SELECT\s)/i', $select, $sql, 1); + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_informix_forge.php b/system/database/drivers/pdo/subdrivers/pdo_informix_forge.php new file mode 100644 index 000000000..2ddc2a933 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_informix_forge.php @@ -0,0 +1,163 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO Informix Forge Class + * + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_informix_forge extends CI_DB_pdo_forge { + + /** + * RENAME TABLE statement + * + * @var string + */ + protected $_rename_table = 'RENAME TABLE %s TO %s'; + + /** + * UNSIGNED support + * + * @var array + */ + protected $_unsigned = array( + 'SMALLINT' => 'INTEGER', + 'INT' => 'BIGINT', + 'INTEGER' => 'BIGINT', + 'REAL' => 'DOUBLE PRECISION', + 'SMALLFLOAT' => 'DOUBLE PRECISION' + ); + + /** + * DEFAULT value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_default = ', '; + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if ($alter_type === 'CHANGE') + { + $alter_type = 'MODIFY'; + } + + return parent::_alter_table($alter_type, $table, $field); + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'BYTE': + case 'TEXT': + case 'BLOB': + case 'CLOB': + $attributes['UNIQUE'] = FALSE; + if (isset($attributes['DEFAULT'])) + { + unset($attributes['DEFAULT']); + } + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute UNIQUE + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_unique(&$attributes, &$field) + { + if ( ! empty($attributes['UNIQUE']) && $attributes['UNIQUE'] === TRUE) + { + $field['unique'] = ' UNIQUE CONSTRAINT '.$this->db->escape_identifiers($field['name']); + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + // Not supported + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_mysql_driver.php b/system/database/drivers/pdo/subdrivers/pdo_mysql_driver.php new file mode 100644 index 000000000..64b13d827 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_mysql_driver.php @@ -0,0 +1,374 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO MySQL Database Adapter Class + * + * Note: _DB is an extender class that the app controller + * creates dynamically based on whether the query builder + * class is being used or not. + * + * @package CodeIgniter + * @subpackage Drivers + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_mysql_driver extends CI_DB_pdo_driver { + + /** + * Sub-driver + * + * @var string + */ + public $subdriver = 'mysql'; + + /** + * Compression flag + * + * @var bool + */ + public $compress = FALSE; + + /** + * Strict ON flag + * + * Whether we're running in strict SQL mode. + * + * @var bool + */ + public $stricton; + + // -------------------------------------------------------------------- + + /** + * Identifier escape character + * + * @var string + */ + protected $_escape_char = '`'; + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * Builds the DSN if not already set. + * + * @param array $params + * @return void + */ + public function __construct($params) + { + parent::__construct($params); + + if (empty($this->dsn)) + { + $this->dsn = 'mysql:host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname); + + empty($this->port) OR $this->dsn .= ';port='.$this->port; + empty($this->database) OR $this->dsn .= ';dbname='.$this->database; + empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set; + } + elseif ( ! empty($this->char_set) && strpos($this->dsn, 'charset=', 6) === FALSE) + { + $this->dsn .= ';charset='.$this->char_set; + } + } + + // -------------------------------------------------------------------- + + /** + * Database connection + * + * @param bool $persistent + * @return object + */ + public function db_connect($persistent = FALSE) + { + if (isset($this->stricton)) + { + if ($this->stricton) + { + $sql = 'CONCAT(@@sql_mode, ",", "STRICT_ALL_TABLES")'; + } + else + { + $sql = 'REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE( + @@sql_mode, + "STRICT_ALL_TABLES,", ""), + ",STRICT_ALL_TABLES", ""), + "STRICT_ALL_TABLES", ""), + "STRICT_TRANS_TABLES,", ""), + ",STRICT_TRANS_TABLES", ""), + "STRICT_TRANS_TABLES", "")'; + } + + if ( ! empty($sql)) + { + if (empty($this->options[PDO::MYSQL_ATTR_INIT_COMMAND])) + { + $this->options[PDO::MYSQL_ATTR_INIT_COMMAND] = 'SET SESSION sql_mode = '.$sql; + } + else + { + $this->options[PDO::MYSQL_ATTR_INIT_COMMAND] .= ', @@session.sql_mode = '.$sql; + } + } + } + + if ($this->compress === TRUE) + { + $this->options[PDO::MYSQL_ATTR_COMPRESS] = TRUE; + } + + if (is_array($this->encrypt)) + { + $ssl = array(); + empty($this->encrypt['ssl_key']) OR $ssl[PDO::MYSQL_ATTR_SSL_KEY] = $this->encrypt['ssl_key']; + empty($this->encrypt['ssl_cert']) OR $ssl[PDO::MYSQL_ATTR_SSL_CERT] = $this->encrypt['ssl_cert']; + empty($this->encrypt['ssl_ca']) OR $ssl[PDO::MYSQL_ATTR_SSL_CA] = $this->encrypt['ssl_ca']; + empty($this->encrypt['ssl_capath']) OR $ssl[PDO::MYSQL_ATTR_SSL_CAPATH] = $this->encrypt['ssl_capath']; + empty($this->encrypt['ssl_cipher']) OR $ssl[PDO::MYSQL_ATTR_SSL_CIPHER] = $this->encrypt['ssl_cipher']; + + // DO NOT use array_merge() here! + // It re-indexes numeric keys and the PDO_MYSQL_ATTR_SSL_* constants are integers. + empty($ssl) OR $this->options += $ssl; + } + + // Prior to version 5.7.3, MySQL silently downgrades to an unencrypted connection if SSL setup fails + if ( + ($pdo = parent::db_connect($persistent)) !== FALSE + && ! empty($ssl) + && version_compare($pdo->getAttribute(PDO::ATTR_CLIENT_VERSION), '5.7.3', '<=') + && empty($pdo->query("SHOW STATUS LIKE 'ssl_cipher'")->fetchObject()->Value) + ) + { + $message = 'PDO_MYSQL was configured for an SSL connection, but got an unencrypted connection instead!'; + log_message('error', $message); + return ($this->db_debug) ? $this->display_error($message, '', TRUE) : FALSE; + } + + return $pdo; + } + + // -------------------------------------------------------------------- + + /** + * Select the database + * + * @param string $database + * @return bool + */ + public function db_select($database = '') + { + if ($database === '') + { + $database = $this->database; + } + + if (FALSE !== $this->simple_query('USE '.$this->escape_identifiers($database))) + { + $this->database = $database; + $this->data_cache = array(); + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Begin Transaction + * + * @return bool + */ + protected function _trans_begin() + { + $this->conn_id->setAttribute(PDO::ATTR_AUTOCOMMIT, FALSE); + return $this->conn_id->beginTransaction(); + } + + // -------------------------------------------------------------------- + + /** + * Commit Transaction + * + * @return bool + */ + protected function _trans_commit() + { + if ($this->conn_id->commit()) + { + $this->conn_id->setAttribute(PDO::ATTR_AUTOCOMMIT, TRUE); + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Rollback Transaction + * + * @return bool + */ + protected function _trans_rollback() + { + if ($this->conn_id->rollBack()) + { + $this->conn_id->setAttribute(PDO::ATTR_AUTOCOMMIT, TRUE); + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SHOW TABLES'; + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + return $sql." LIKE '".$this->escape_like_str($this->dbprefix)."%'"; + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + if (($query = $this->query('SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE))) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->Field; + + sscanf($query[$i]->Type, '%[a-z](%d)', + $retval[$i]->type, + $retval[$i]->max_length + ); + + $retval[$i]->default = $query[$i]->Default; + $retval[$i]->primary_key = (int) ($query[$i]->Key === 'PRI'); + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the TRUNCATE statement, + * then this method maps to 'DELETE FROM table' + * + * @param string $table + * @return string + */ + protected function _truncate($table) + { + return 'TRUNCATE '.$table; + } + + // -------------------------------------------------------------------- + + /** + * FROM tables + * + * Groups tables in FROM clauses if needed, so there is no confusion + * about operator precedence. + * + * @return string + */ + protected function _from_tables() + { + if ( ! empty($this->qb_join) && count($this->qb_from) > 1) + { + return '('.implode(', ', $this->qb_from).')'; + } + + return implode(', ', $this->qb_from); + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_mysql_forge.php b/system/database/drivers/pdo/subdrivers/pdo_mysql_forge.php new file mode 100644 index 000000000..c7a92b826 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_mysql_forge.php @@ -0,0 +1,256 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO MySQL Forge Class + * + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_mysql_forge extends CI_DB_pdo_forge { + + /** + * CREATE DATABASE statement + * + * @var string + */ + protected $_create_database = 'CREATE DATABASE %s CHARACTER SET %s COLLATE %s'; + + /** + * CREATE TABLE IF statement + * + * @var string + */ + protected $_create_table_if = 'CREATE TABLE IF NOT EXISTS'; + + /** + * CREATE TABLE keys flag + * + * Whether table keys are created from within the + * CREATE TABLE statement. + * + * @var bool + */ + protected $_create_table_keys = TRUE; + + /** + * DROP TABLE IF statement + * + * @var string + */ + protected $_drop_table_if = 'DROP TABLE IF EXISTS'; + + /** + * UNSIGNED support + * + * @var array + */ + protected $_unsigned = array( + 'TINYINT', + 'SMALLINT', + 'MEDIUMINT', + 'INT', + 'INTEGER', + 'BIGINT', + 'REAL', + 'DOUBLE', + 'DOUBLE PRECISION', + 'FLOAT', + 'DECIMAL', + 'NUMERIC' + ); + + /** + * NULL value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_null = 'NULL'; + + // -------------------------------------------------------------------- + + /** + * CREATE TABLE attributes + * + * @param array $attributes Associative array of table attributes + * @return string + */ + protected function _create_table_attr($attributes) + { + $sql = ''; + + foreach (array_keys($attributes) as $key) + { + if (is_string($key)) + { + $sql .= ' '.strtoupper($key).' = '.$attributes[$key]; + } + } + + if ( ! empty($this->db->char_set) && ! strpos($sql, 'CHARACTER SET') && ! strpos($sql, 'CHARSET')) + { + $sql .= ' DEFAULT CHARACTER SET = '.$this->db->char_set; + } + + if ( ! empty($this->db->dbcollat) && ! strpos($sql, 'COLLATE')) + { + $sql .= ' COLLATE = '.$this->db->dbcollat; + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if ($alter_type === 'DROP') + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + $field[$i] = ($alter_type === 'ADD') + ? "\n\tADD ".$field[$i]['_literal'] + : "\n\tMODIFY ".$field[$i]['_literal']; + } + else + { + if ($alter_type === 'ADD') + { + $field[$i]['_literal'] = "\n\tADD "; + } + else + { + $field[$i]['_literal'] = empty($field[$i]['new_name']) ? "\n\tMODIFY " : "\n\tCHANGE "; + } + + $field[$i] = $field[$i]['_literal'].$this->_process_column($field[$i]); + } + } + + return array($sql.implode(',', $field)); + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + $extra_clause = isset($field['after']) + ? ' AFTER '.$this->db->escape_identifiers($field['after']) : ''; + + if (empty($extra_clause) && isset($field['first']) && $field['first'] === TRUE) + { + $extra_clause = ' FIRST'; + } + + return $this->db->escape_identifiers($field['name']) + .(empty($field['new_name']) ? '' : ' '.$this->db->escape_identifiers($field['new_name'])) + .' '.$field['type'].$field['length'] + .$field['unsigned'] + .$field['null'] + .$field['default'] + .$field['auto_increment'] + .$field['unique'] + .(empty($field['comment']) ? '' : ' COMMENT '.$field['comment']) + .$extra_clause; + } + + // -------------------------------------------------------------------- + + /** + * Process indexes + * + * @param string $table (ignored) + * @return string + */ + protected function _process_indexes($table) + { + $sql = ''; + + for ($i = 0, $c = count($this->keys); $i < $c; $i++) + { + if (is_array($this->keys[$i])) + { + for ($i2 = 0, $c2 = count($this->keys[$i]); $i2 < $c2; $i2++) + { + if ( ! isset($this->fields[$this->keys[$i][$i2]])) + { + unset($this->keys[$i][$i2]); + continue; + } + } + } + elseif ( ! isset($this->fields[$this->keys[$i]])) + { + unset($this->keys[$i]); + continue; + } + + is_array($this->keys[$i]) OR $this->keys[$i] = array($this->keys[$i]); + + $sql .= ",\n\tKEY ".$this->db->escape_identifiers(implode('_', $this->keys[$i])) + .' ('.implode(', ', $this->db->escape_identifiers($this->keys[$i])).')'; + } + + $this->keys = array(); + + return $sql; + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_oci_driver.php b/system/database/drivers/pdo/subdrivers/pdo_oci_driver.php new file mode 100644 index 000000000..abf9167d6 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_oci_driver.php @@ -0,0 +1,326 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO Oracle Database Adapter Class + * + * Note: _DB is an extender class that the app controller + * creates dynamically based on whether the query builder + * class is being used or not. + * + * @package CodeIgniter + * @subpackage Drivers + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_oci_driver extends CI_DB_pdo_driver { + + /** + * Sub-driver + * + * @var string + */ + public $subdriver = 'oci'; + + // -------------------------------------------------------------------- + + /** + * List of reserved identifiers + * + * Identifiers that must NOT be escaped. + * + * @var string[] + */ + protected $_reserved_identifiers = array('*', 'rownum'); + + /** + * ORDER BY random keyword + * + * @var array + */ + protected $_random_keyword = array('ASC', 'ASC'); // Currently not supported + + /** + * COUNT string + * + * @used-by CI_DB_driver::count_all() + * @used-by CI_DB_query_builder::count_all_results() + * + * @var string + */ + protected $_count_string = 'SELECT COUNT(1) AS '; + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * Builds the DSN if not already set. + * + * @param array $params + * @return void + */ + public function __construct($params) + { + parent::__construct($params); + + if (empty($this->dsn)) + { + $this->dsn = 'oci:dbname='; + + // Oracle has a slightly different PDO DSN format (Easy Connect), + // which also supports pre-defined DSNs. + if (empty($this->hostname) && empty($this->port)) + { + $this->dsn .= $this->database; + } + else + { + $this->dsn .= '//'.(empty($this->hostname) ? '127.0.0.1' : $this->hostname) + .(empty($this->port) ? '' : ':'.$this->port).'/'; + + empty($this->database) OR $this->dsn .= $this->database; + } + + empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set; + } + elseif ( ! empty($this->char_set) && strpos($this->dsn, 'charset=', 4) === FALSE) + { + $this->dsn .= ';charset='.$this->char_set; + } + } + + // -------------------------------------------------------------------- + + /** + * Database version number + * + * @return string + */ + public function version() + { + if (isset($this->data_cache['version'])) + { + return $this->data_cache['version']; + } + + $version_string = parent::version(); + if (preg_match('#Release\s(?<version>\d+(?:\.\d+)+)#', $version_string, $match)) + { + return $this->data_cache['version'] = $match[1]; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT "TABLE_NAME" FROM "ALL_TABLES"'; + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + return $sql.' WHERE "TABLE_NAME" LIKE \''.$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + if (strpos($table, '.') !== FALSE) + { + sscanf($table, '%[^.].%s', $owner, $table); + } + else + { + $owner = $this->username; + } + + return 'SELECT COLUMN_NAME FROM ALL_TAB_COLUMNS + WHERE UPPER(OWNER) = '.$this->escape(strtoupper($owner)).' + AND UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table)); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + if (strpos($table, '.') !== FALSE) + { + sscanf($table, '%[^.].%s', $owner, $table); + } + else + { + $owner = $this->username; + } + + $sql = 'SELECT COLUMN_NAME, DATA_TYPE, CHAR_LENGTH, DATA_PRECISION, DATA_LENGTH, DATA_DEFAULT, NULLABLE + FROM ALL_TAB_COLUMNS + WHERE UPPER(OWNER) = '.$this->escape(strtoupper($owner)).' + AND UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table)); + + if (($query = $this->query($sql)) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->COLUMN_NAME; + $retval[$i]->type = $query[$i]->DATA_TYPE; + + $length = ($query[$i]->CHAR_LENGTH > 0) + ? $query[$i]->CHAR_LENGTH : $query[$i]->DATA_PRECISION; + if ($length === NULL) + { + $length = $query[$i]->DATA_LENGTH; + } + $retval[$i]->max_length = $length; + + $default = $query[$i]->DATA_DEFAULT; + if ($default === NULL && $query[$i]->NULLABLE === 'N') + { + $default = ''; + } + $retval[$i]->default = $query[$i]->COLUMN_DEFAULT; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Insert batch statement + * + * @param string $table Table name + * @param array $keys INSERT keys + * @param array $values INSERT values + * @return string + */ + protected function _insert_batch($table, $keys, $values) + { + $keys = implode(', ', $keys); + $sql = "INSERT ALL\n"; + + for ($i = 0, $c = count($values); $i < $c; $i++) + { + $sql .= ' INTO '.$table.' ('.$keys.') VALUES '.$values[$i]."\n"; + } + + return $sql.'SELECT * FROM dual'; + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + if ($this->qb_limit) + { + $this->where('rownum <= ',$this->qb_limit, FALSE); + $this->qb_limit = FALSE; + } + + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + if (version_compare($this->version(), '12.1', '>=')) + { + // OFFSET-FETCH can be used only with the ORDER BY clause + empty($this->qb_orderby) && $sql .= ' ORDER BY 1'; + + return $sql.' OFFSET '.(int) $this->qb_offset.' ROWS FETCH NEXT '.$this->qb_limit.' ROWS ONLY'; + } + + return 'SELECT * FROM (SELECT inner_query.*, rownum rnum FROM ('.$sql.') inner_query WHERE rownum < '.($this->qb_offset + $this->qb_limit + 1).')' + .($this->qb_offset ? ' WHERE rnum >= '.($this->qb_offset + 1): ''); + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_oci_forge.php b/system/database/drivers/pdo/subdrivers/pdo_oci_forge.php new file mode 100644 index 000000000..813207b8e --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_oci_forge.php @@ -0,0 +1,176 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO Oracle Forge Class + * + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_oci_forge extends CI_DB_pdo_forge { + + /** + * CREATE DATABASE statement + * + * @var string + */ + protected $_create_database = FALSE; + + /** + * CREATE TABLE IF statement + * + * @var string + */ + protected $_create_table_if = FALSE; + + /** + * DROP DATABASE statement + * + * @var string + */ + protected $_drop_database = FALSE; + + /** + * UNSIGNED support + * + * @var bool|array + */ + protected $_unsigned = FALSE; + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if ($alter_type === 'DROP') + { + return parent::_alter_table($alter_type, $table, $field); + } + elseif ($alter_type === 'CHANGE') + { + $alter_type = 'MODIFY'; + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + $field[$i] = "\n\t".$field[$i]['_literal']; + } + else + { + $field[$i]['_literal'] = "\n\t".$this->_process_column($field[$i]); + + if ( ! empty($field[$i]['comment'])) + { + $sqls[] = 'COMMENT ON COLUMN ' + .$this->db->escape_identifiers($table).'.'.$this->db->escape_identifiers($field[$i]['name']) + .' IS '.$field[$i]['comment']; + } + + if ($alter_type === 'MODIFY' && ! empty($field[$i]['new_name'])) + { + $sqls[] = $sql.' RENAME COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' TO '.$this->db->escape_identifiers($field[$i]['new_name']); + } + } + } + + $sql .= ' '.$alter_type.' '; + $sql .= (count($field) === 1) + ? $field[0] + : '('.implode(',', $field).')'; + + // RENAME COLUMN must be executed after MODIFY + array_unshift($sqls, $sql); + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + // Not supported - sequences and triggers must be used instead + } + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'NUMBER'; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'NUMBER'; + return; + case 'INT': + $attributes['TYPE'] = 'NUMBER'; + return; + case 'BIGINT': + $attributes['TYPE'] = 'NUMBER'; + return; + default: return; + } + } +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_odbc_driver.php b/system/database/drivers/pdo/subdrivers/pdo_odbc_driver.php new file mode 100644 index 000000000..066dd9614 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_odbc_driver.php @@ -0,0 +1,229 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO ODBC Database Adapter Class + * + * Note: _DB is an extender class that the app controller + * creates dynamically based on whether the query builder + * class is being used or not. + * + * @package CodeIgniter + * @subpackage Drivers + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_odbc_driver extends CI_DB_pdo_driver { + + /** + * Sub-driver + * + * @var string + */ + public $subdriver = 'odbc'; + + /** + * Database schema + * + * @var string + */ + public $schema = 'public'; + + // -------------------------------------------------------------------- + + /** + * Identifier escape character + * + * Must be empty for ODBC. + * + * @var string + */ + protected $_escape_char = ''; + + /** + * ESCAPE statement string + * + * @var string + */ + protected $_like_escape_str = " {escape '%s'} "; + + /** + * ORDER BY random keyword + * + * @var array + */ + protected $_random_keyword = array('RND()', 'RND(%d)'); + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * Builds the DSN if not already set. + * + * @param array $params + * @return void + */ + public function __construct($params) + { + parent::__construct($params); + + if (empty($this->dsn)) + { + $this->dsn = 'odbc:'; + + // Pre-defined DSN + if (empty($this->hostname) && empty($this->HOSTNAME) && empty($this->port) && empty($this->PORT)) + { + if (isset($this->DSN)) + { + $this->dsn .= 'DSN='.$this->DSN; + } + elseif ( ! empty($this->database)) + { + $this->dsn .= 'DSN='.$this->database; + } + + return; + } + + // If the DSN is not pre-configured - try to build an IBM DB2 connection string + $this->dsn .= 'DRIVER='.(isset($this->DRIVER) ? '{'.$this->DRIVER.'}' : '{IBM DB2 ODBC DRIVER}').';'; + + if (isset($this->DATABASE)) + { + $this->dsn .= 'DATABASE='.$this->DATABASE.';'; + } + elseif ( ! empty($this->database)) + { + $this->dsn .= 'DATABASE='.$this->database.';'; + } + + if (isset($this->HOSTNAME)) + { + $this->dsn .= 'HOSTNAME='.$this->HOSTNAME.';'; + } + else + { + $this->dsn .= 'HOSTNAME='.(empty($this->hostname) ? '127.0.0.1;' : $this->hostname.';'); + } + + if (isset($this->PORT)) + { + $this->dsn .= 'PORT='.$this->port.';'; + } + elseif ( ! empty($this->port)) + { + $this->dsn .= ';PORT='.$this->port.';'; + } + + $this->dsn .= 'PROTOCOL='.(isset($this->PROTOCOL) ? $this->PROTOCOL.';' : 'TCPIP;'); + } + } + + // -------------------------------------------------------------------- + + /** + * Platform-dependent string escape + * + * @param string + * @return string + */ + protected function _escape_str($str) + { + $this->display_error('db_unsupported_feature'); + } + + // -------------------------------------------------------------------- + + /** + * Determines if a query is a "write" type. + * + * @param string An SQL query string + * @return bool + */ + public function is_write_type($sql) + { + if (preg_match('#^(INSERT|UPDATE).*RETURNING\s.+(\,\s?.+)*$#is', $sql)) + { + return FALSE; + } + + return parent::is_write_type($sql); + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = "SELECT table_name FROM information_schema.tables WHERE table_schema = '".$this->schema."'"; + + if ($prefix_limit !== FALSE && $this->dbprefix !== '') + { + return $sql." AND table_name LIKE '".$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SELECT column_name FROM information_schema.columns WHERE table_name = '.$this->escape($table); + } +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_odbc_forge.php b/system/database/drivers/pdo/subdrivers/pdo_odbc_forge.php new file mode 100644 index 000000000..a2a3bada3 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_odbc_forge.php @@ -0,0 +1,70 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO ODBC Forge Class + * + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/database/ + */ +class CI_DB_pdo_odbc_forge extends CI_DB_pdo_forge { + + /** + * UNSIGNED support + * + * @var bool|array + */ + protected $_unsigned = FALSE; + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + // Not supported (in most databases at least) + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php b/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php new file mode 100644 index 000000000..9aed3a2fe --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php @@ -0,0 +1,384 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO PostgreSQL Database Adapter Class + * + * Note: _DB is an extender class that the app controller + * creates dynamically based on whether the query builder + * class is being used or not. + * + * @package CodeIgniter + * @subpackage Drivers + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_pgsql_driver extends CI_DB_pdo_driver { + + /** + * Sub-driver + * + * @var string + */ + public $subdriver = 'pgsql'; + + /** + * Database schema + * + * @var string + */ + public $schema = 'public'; + + // -------------------------------------------------------------------- + + /** + * ORDER BY random keyword + * + * @var array + */ + protected $_random_keyword = array('RANDOM()', 'RANDOM()'); + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * Builds the DSN if not already set. + * + * @param array $params + * @return void + */ + public function __construct($params) + { + parent::__construct($params); + + if (empty($this->dsn)) + { + $this->dsn = 'pgsql:host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname); + + empty($this->port) OR $this->dsn .= ';port='.$this->port; + empty($this->database) OR $this->dsn .= ';dbname='.$this->database; + + if ( ! empty($this->username)) + { + $this->dsn .= ';username='.$this->username; + empty($this->password) OR $this->dsn .= ';password='.$this->password; + } + } + } + + // -------------------------------------------------------------------- + + /** + * Database connection + * + * @param bool $persistent + * @return object + */ + public function db_connect($persistent = FALSE) + { + $this->conn_id = parent::db_connect($persistent); + + if (is_object($this->conn_id) && ! empty($this->schema)) + { + $this->simple_query('SET search_path TO '.$this->schema.',public'); + } + + return $this->conn_id; + } + + // -------------------------------------------------------------------- + + /** + * Insert ID + * + * @param string $name + * @return int + */ + public function insert_id($name = NULL) + { + if ($name === NULL && version_compare($this->version(), '8.1', '>=')) + { + $query = $this->query('SELECT LASTVAL() AS ins_id'); + $query = $query->row(); + return $query->ins_id; + } + + return $this->conn_id->lastInsertId($name); + } + + // -------------------------------------------------------------------- + + /** + * Determines if a query is a "write" type. + * + * @param string An SQL query string + * @return bool + */ + public function is_write_type($sql) + { + if (preg_match('#^(INSERT|UPDATE).*RETURNING\s.+(\,\s?.+)*$#is', $sql)) + { + return FALSE; + } + + return parent::is_write_type($sql); + } + + // -------------------------------------------------------------------- + + /** + * "Smart" Escape String + * + * Escapes data based on type + * + * @param string $str + * @return mixed + */ + public function escape($str) + { + if (is_bool($str)) + { + return ($str) ? 'TRUE' : 'FALSE'; + } + + return parent::escape($str); + } + + // -------------------------------------------------------------------- + + /** + * ORDER BY + * + * @param string $orderby + * @param string $direction ASC, DESC or RANDOM + * @param bool $escape + * @return object + */ + public function order_by($orderby, $direction = '', $escape = NULL) + { + $direction = strtoupper(trim($direction)); + if ($direction === 'RANDOM') + { + if ( ! is_float($orderby) && ctype_digit((string) $orderby)) + { + $orderby = ($orderby > 1) + ? (float) '0.'.$orderby + : (float) $orderby; + } + + if (is_float($orderby)) + { + $this->simple_query('SET SEED '.$orderby); + } + + $orderby = $this->_random_keyword[0]; + $direction = ''; + $escape = FALSE; + } + + return parent::order_by($orderby, $direction, $escape); + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT "table_name" FROM "information_schema"."tables" WHERE "table_schema" = \''.$this->schema."'"; + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + return $sql.' AND "table_name" LIKE \'' + .$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * List column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SELECT "column_name" + FROM "information_schema"."columns" + WHERE LOWER("table_name") = '.$this->escape(strtolower($table)); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + $sql = 'SELECT "column_name", "data_type", "character_maximum_length", "numeric_precision", "column_default" + FROM "information_schema"."columns" + WHERE LOWER("table_name") = '.$this->escape(strtolower($table)); + + if (($query = $this->query($sql)) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->column_name; + $retval[$i]->type = $query[$i]->data_type; + $retval[$i]->max_length = ($query[$i]->character_maximum_length > 0) ? $query[$i]->character_maximum_length : $query[$i]->numeric_precision; + $retval[$i]->default = $query[$i]->column_default; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string $table + * @param array $values + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** + * Update_Batch statement + * + * Generates a platform-specific batch update string from the supplied data + * + * @param string $table Table name + * @param array $values Update data + * @param string $index WHERE key + * @return string + */ + protected function _update_batch($table, $values, $index) + { + $ids = array(); + foreach ($values as $key => $val) + { + $ids[] = $val[$index]['value']; + + foreach (array_keys($val) as $field) + { + if ($field !== $index) + { + $final[$val[$field]['field']][] = 'WHEN '.$val[$index]['value'].' THEN '.$val[$field]['value']; + } + } + } + + $cases = ''; + foreach ($final as $k => $v) + { + $cases .= $k.' = (CASE '.$val[$index]['field']."\n" + .implode("\n", $v)."\n" + .'ELSE '.$k.' END), '; + } + + $this->where($val[$index]['field'].' IN('.implode(',', $ids).')', NULL, FALSE); + + return 'UPDATE '.$table.' SET '.substr($cases, 0, -2).$this->_compile_wh('qb_where'); + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + $this->qb_limit = FALSE; + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + return $sql.' LIMIT '.$this->qb_limit.($this->qb_offset ? ' OFFSET '.$this->qb_offset : ''); + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_pgsql_forge.php b/system/database/drivers/pdo/subdrivers/pdo_pgsql_forge.php new file mode 100644 index 000000000..b00af4ad0 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_pgsql_forge.php @@ -0,0 +1,210 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO PostgreSQL Forge Class + * + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_pgsql_forge extends CI_DB_pdo_forge { + + /** + * DROP TABLE IF statement + * + * @var string + */ + protected $_drop_table_if = 'DROP TABLE IF EXISTS'; + + /** + * UNSIGNED support + * + * @var array + */ + protected $_unsigned = array( + 'INT2' => 'INTEGER', + 'SMALLINT' => 'INTEGER', + 'INT' => 'BIGINT', + 'INT4' => 'BIGINT', + 'INTEGER' => 'BIGINT', + 'INT8' => 'NUMERIC', + 'BIGINT' => 'NUMERIC', + 'REAL' => 'DOUBLE PRECISION', + 'FLOAT' => 'DOUBLE PRECISION' + ); + + /** + * NULL value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_null = 'NULL'; + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * @param object &$db Database object + * @return void + */ + public function __construct(&$db) + { + parent::__construct($db); + + if (version_compare($this->db->version(), '9.0', '>')) + { + $this->create_table_if = 'CREATE TABLE IF NOT EXISTS'; + } + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('DROP', 'ADD'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + return FALSE; + } + + if (version_compare($this->db->version(), '8', '>=') && isset($field[$i]['type'])) + { + $sqls[] = $sql.' ALTER COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' TYPE '.$field[$i]['type'].$field[$i]['length']; + } + + if ( ! empty($field[$i]['default'])) + { + $sqls[] = $sql.' ALTER COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' SET DEFAULT '.$field[$i]['default']; + } + + if (isset($field[$i]['null'])) + { + $sqls[] = $sql.' ALTER COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .($field[$i]['null'] === TRUE ? ' DROP NOT NULL' : ' SET NOT NULL'); + } + + if ( ! empty($field[$i]['new_name'])) + { + $sqls[] = $sql.' RENAME COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' TO '.$this->db->escape_identifiers($field[$i]['new_name']); + } + + if ( ! empty($field[$i]['comment'])) + { + $sqls[] = 'COMMENT ON COLUMN ' + .$this->db->escape_identifiers($table).'.'.$this->db->escape_identifiers($field[$i]['name']) + .' IS '.$field[$i]['comment']; + } + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + // Reset field lengths for data types that don't support it + if (isset($attributes['CONSTRAINT']) && stripos($attributes['TYPE'], 'int') !== FALSE) + { + $attributes['CONSTRAINT'] = NULL; + } + + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE) + { + $field['type'] = ($field['type'] === 'NUMERIC') + ? 'BIGSERIAL' + : 'SERIAL'; + } + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_sqlite_driver.php b/system/database/drivers/pdo/subdrivers/pdo_sqlite_driver.php new file mode 100644 index 000000000..9b70f3ea6 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_sqlite_driver.php @@ -0,0 +1,219 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO SQLite Database Adapter Class + * + * Note: _DB is an extender class that the app controller + * creates dynamically based on whether the query builder + * class is being used or not. + * + * @package CodeIgniter + * @subpackage Drivers + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_sqlite_driver extends CI_DB_pdo_driver { + + /** + * Sub-driver + * + * @var string + */ + public $subdriver = 'sqlite'; + + // -------------------------------------------------------------------- + + /** + * ORDER BY random keyword + * + * @var array + */ + protected $_random_keyword = array('RANDOM()', 'RANDOM()'); + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * Builds the DSN if not already set. + * + * @param array $params + * @return void + */ + public function __construct($params) + { + parent::__construct($params); + + if (empty($this->dsn)) + { + $this->dsn = 'sqlite:'; + + if (empty($this->database) && empty($this->hostname)) + { + $this->database = ':memory:'; + } + + $this->database = empty($this->database) ? $this->hostname : $this->database; + } + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT "NAME" FROM "SQLITE_MASTER" WHERE "TYPE" = \'table\''; + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + return $sql.' AND "NAME" LIKE \''.$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Fetch Field Names + * + * @param string $table Table name + * @return array + */ + public function list_fields($table) + { + // Is there a cached result? + if (isset($this->data_cache['field_names'][$table])) + { + return $this->data_cache['field_names'][$table]; + } + + if (($result = $this->query('PRAGMA TABLE_INFO('.$this->protect_identifiers($table, TRUE, NULL, FALSE).')')) === FALSE) + { + return FALSE; + } + + $this->data_cache['field_names'][$table] = array(); + foreach ($result->result_array() as $row) + { + $this->data_cache['field_names'][$table][] = $row['name']; + } + + return $this->data_cache['field_names'][$table]; + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + if (($query = $this->query('PRAGMA TABLE_INFO('.$this->protect_identifiers($table, TRUE, NULL, FALSE).')')) === FALSE) + { + return FALSE; + } + + $query = $query->result_array(); + if (empty($query)) + { + return FALSE; + } + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]['name']; + $retval[$i]->type = $query[$i]['type']; + $retval[$i]->max_length = NULL; + $retval[$i]->default = $query[$i]['dflt_value']; + $retval[$i]->primary_key = isset($query[$i]['pk']) ? (int) $query[$i]['pk'] : 0; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Replace statement + * + * @param string $table Table name + * @param array $keys INSERT keys + * @param array $values INSERT values + * @return string + */ + protected function _replace($table, $keys, $values) + { + return 'INSERT OR '.parent::_replace($table, $keys, $values); + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the TRUNCATE statement, + * then this method maps to 'DELETE FROM table' + * + * @param string $table + * @return string + */ + protected function _truncate($table) + { + return 'DELETE FROM '.$table; + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_sqlite_forge.php b/system/database/drivers/pdo/subdrivers/pdo_sqlite_forge.php new file mode 100644 index 000000000..18c475b17 --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_sqlite_forge.php @@ -0,0 +1,238 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO SQLite Forge Class + * + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_sqlite_forge extends CI_DB_pdo_forge { + + /** + * CREATE TABLE IF statement + * + * @var string + */ + protected $_create_table_if = 'CREATE TABLE IF NOT EXISTS'; + + /** + * DROP TABLE IF statement + * + * @var string + */ + protected $_drop_table_if = 'DROP TABLE IF EXISTS'; + + /** + * UNSIGNED support + * + * @var bool|array + */ + protected $_unsigned = FALSE; + + /** + * NULL value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_null = 'NULL'; + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * @param object &$db Database object + * @return void + */ + public function __construct(&$db) + { + parent::__construct($db); + + if (version_compare($this->db->version(), '3.3', '<')) + { + $this->_create_table_if = FALSE; + $this->_drop_table_if = FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Create database + * + * @param string $db_name (ignored) + * @return bool + */ + public function create_database($db_name) + { + // In SQLite, a database is created when you connect to the database. + // We'll return TRUE so that an error isn't generated + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Drop database + * + * @param string $db_name (ignored) + * @return bool + */ + public function drop_database($db_name) + { + // In SQLite, a database is dropped when we delete a file + if (file_exists($this->db->database)) + { + // We need to close the pseudo-connection first + $this->db->close(); + if ( ! @unlink($this->db->database)) + { + return $this->db->db_debug ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + elseif ( ! empty($this->db->data_cache['db_names'])) + { + $key = array_search(strtolower($this->db->database), array_map('strtolower', $this->db->data_cache['db_names']), TRUE); + if ($key !== FALSE) + { + unset($this->db->data_cache['db_names'][$key]); + } + } + + return TRUE; + } + + return $this->db->db_debug ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if ($alter_type === 'DROP' OR $alter_type === 'CHANGE') + { + // drop_column(): + // BEGIN TRANSACTION; + // CREATE TEMPORARY TABLE t1_backup(a,b); + // INSERT INTO t1_backup SELECT a,b FROM t1; + // DROP TABLE t1; + // CREATE TABLE t1(a,b); + // INSERT INTO t1 SELECT a,b FROM t1_backup; + // DROP TABLE t1_backup; + // COMMIT; + + return FALSE; + } + + return parent::_alter_table($alter_type, $table, $field); + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + return $this->db->escape_identifiers($field['name']) + .' '.$field['type'] + .$field['auto_increment'] + .$field['null'] + .$field['unique'] + .$field['default']; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'ENUM': + case 'SET': + $attributes['TYPE'] = 'TEXT'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'int') !== FALSE) + { + $field['type'] = 'INTEGER PRIMARY KEY'; + $field['default'] = ''; + $field['null'] = ''; + $field['unique'] = ''; + $field['auto_increment'] = ' AUTOINCREMENT'; + + $this->primary_keys = array(); + } + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php b/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php new file mode 100644 index 000000000..07c429eec --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php @@ -0,0 +1,369 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO SQLSRV Database Adapter Class + * + * Note: _DB is an extender class that the app controller + * creates dynamically based on whether the query builder + * class is being used or not. + * + * @package CodeIgniter + * @subpackage Drivers + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_sqlsrv_driver extends CI_DB_pdo_driver { + + /** + * Sub-driver + * + * @var string + */ + public $subdriver = 'sqlsrv'; + + // -------------------------------------------------------------------- + + /** + * ORDER BY random keyword + * + * @var array + */ + protected $_random_keyword = array('NEWID()', 'RAND(%d)'); + + /** + * Quoted identifier flag + * + * Whether to use SQL-92 standard quoted identifier + * (double quotes) or brackets for identifier escaping. + * + * @var bool + */ + protected $_quoted_identifier; + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * Builds the DSN if not already set. + * + * @param array $params + * @return void + */ + public function __construct($params) + { + parent::__construct($params); + + if (empty($this->dsn)) + { + $this->dsn = 'sqlsrv:Server='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname); + + empty($this->port) OR $this->dsn .= ','.$this->port; + empty($this->database) OR $this->dsn .= ';Database='.$this->database; + + // Some custom options + + if (isset($this->QuotedId)) + { + $this->dsn .= ';QuotedId='.$this->QuotedId; + $this->_quoted_identifier = (bool) $this->QuotedId; + } + + if (isset($this->ConnectionPooling)) + { + $this->dsn .= ';ConnectionPooling='.$this->ConnectionPooling; + } + + if ($this->encrypt === TRUE) + { + $this->dsn .= ';Encrypt=1'; + } + + if (isset($this->TraceOn)) + { + $this->dsn .= ';TraceOn='.$this->TraceOn; + } + + if (isset($this->TrustServerCertificate)) + { + $this->dsn .= ';TrustServerCertificate='.$this->TrustServerCertificate; + } + + empty($this->APP) OR $this->dsn .= ';APP='.$this->APP; + empty($this->Failover_Partner) OR $this->dsn .= ';Failover_Partner='.$this->Failover_Partner; + empty($this->LoginTimeout) OR $this->dsn .= ';LoginTimeout='.$this->LoginTimeout; + empty($this->MultipleActiveResultSets) OR $this->dsn .= ';MultipleActiveResultSets='.$this->MultipleActiveResultSets; + empty($this->TraceFile) OR $this->dsn .= ';TraceFile='.$this->TraceFile; + empty($this->WSID) OR $this->dsn .= ';WSID='.$this->WSID; + } + elseif (preg_match('/QuotedId=(0|1)/', $this->dsn, $match)) + { + $this->_quoted_identifier = (bool) $match[1]; + } + } + + // -------------------------------------------------------------------- + + /** + * Database connection + * + * @param bool $persistent + * @return object + */ + public function db_connect($persistent = FALSE) + { + if ( ! empty($this->char_set) && preg_match('/utf[^8]*8/i', $this->char_set)) + { + $this->options[PDO::SQLSRV_ENCODING_UTF8] = 1; + } + + $this->conn_id = parent::db_connect($persistent); + + if ( ! is_object($this->conn_id) OR is_bool($this->_quoted_identifier)) + { + return $this->conn_id; + } + + // Determine how identifiers are escaped + $query = $this->query('SELECT CASE WHEN (@@OPTIONS | 256) = @@OPTIONS THEN 1 ELSE 0 END AS qi'); + $query = $query->row_array(); + $this->_quoted_identifier = empty($query) ? FALSE : (bool) $query['qi']; + $this->_escape_char = ($this->_quoted_identifier) ? '"' : array('[', ']'); + + return $this->conn_id; + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT '.$this->escape_identifiers('name') + .' FROM '.$this->escape_identifiers('sysobjects') + .' WHERE '.$this->escape_identifiers('type')." = 'U'"; + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + $sql .= ' AND '.$this->escape_identifiers('name')." LIKE '".$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql.' ORDER BY '.$this->escape_identifiers('name'); + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SELECT COLUMN_NAME + FROM INFORMATION_SCHEMA.Columns + WHERE UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table)); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + $sql = 'SELECT COLUMN_NAME, DATA_TYPE, CHARACTER_MAXIMUM_LENGTH, NUMERIC_PRECISION, COLUMN_DEFAULT + FROM INFORMATION_SCHEMA.Columns + WHERE UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table)); + + if (($query = $this->query($sql)) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->COLUMN_NAME; + $retval[$i]->type = $query[$i]->DATA_TYPE; + $retval[$i]->max_length = ($query[$i]->CHARACTER_MAXIMUM_LENGTH > 0) ? $query[$i]->CHARACTER_MAXIMUM_LENGTH : $query[$i]->NUMERIC_PRECISION; + $retval[$i]->default = $query[$i]->COLUMN_DEFAULT; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string $table + * @param array $values + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + if ($this->qb_limit) + { + return 'WITH ci_delete AS (SELECT TOP '.$this->qb_limit.' * FROM '.$table.$this->_compile_wh('qb_where').') DELETE FROM ci_delete'; + } + + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + // As of SQL Server 2012 (11.0.*) OFFSET is supported + if (version_compare($this->version(), '11', '>=')) + { + // SQL Server OFFSET-FETCH can be used only with the ORDER BY clause + empty($this->qb_orderby) && $sql .= ' ORDER BY 1'; + + return $sql.' OFFSET '.(int) $this->qb_offset.' ROWS FETCH NEXT '.$this->qb_limit.' ROWS ONLY'; + } + + $limit = $this->qb_offset + $this->qb_limit; + + // An ORDER BY clause is required for ROW_NUMBER() to work + if ($this->qb_offset && ! empty($this->qb_orderby)) + { + $orderby = $this->_compile_order_by(); + + // We have to strip the ORDER BY clause + $sql = trim(substr($sql, 0, strrpos($sql, $orderby))); + + // Get the fields to select from our subquery, so that we can avoid CI_rownum appearing in the actual results + if (count($this->qb_select) === 0) + { + $select = '*'; // Inevitable + } + else + { + // Use only field names and their aliases, everything else is out of our scope. + $select = array(); + $field_regexp = ($this->_quoted_identifier) + ? '("[^\"]+")' : '(\[[^\]]+\])'; + for ($i = 0, $c = count($this->qb_select); $i < $c; $i++) + { + $select[] = preg_match('/(?:\s|\.)'.$field_regexp.'$/i', $this->qb_select[$i], $m) + ? $m[1] : $this->qb_select[$i]; + } + $select = implode(', ', $select); + } + + return 'SELECT '.$select." FROM (\n\n" + .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.trim($orderby).') AS '.$this->escape_identifiers('CI_rownum').', ', $sql) + ."\n\n) ".$this->escape_identifiers('CI_subquery') + ."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.($this->qb_offset + 1).' AND '.$limit; + } + + return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$limit.' ', $sql); + } + + // -------------------------------------------------------------------- + + /** + * Insert batch statement + * + * Generates a platform-specific insert string from the supplied data. + * + * @param string $table Table name + * @param array $keys INSERT keys + * @param array $values INSERT values + * @return string|bool + */ + protected function _insert_batch($table, $keys, $values) + { + // Multiple-value inserts are only supported as of SQL Server 2008 + if (version_compare($this->version(), '10', '>=')) + { + return parent::_insert_batch($table, $keys, $values); + } + + return ($this->db_debug) ? $this->display_error('db_unsupported_feature') : FALSE; + } + +} diff --git a/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_forge.php b/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_forge.php new file mode 100644 index 000000000..82a0d515d --- /dev/null +++ b/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_forge.php @@ -0,0 +1,149 @@ +<?php +/** + * CodeIgniter + * + * An open source application development framework for PHP + * + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 3.0.0 + * @filesource + */ +defined('BASEPATH') OR exit('No direct script access allowed'); + +/** + * PDO SQLSRV Forge Class + * + * @category Database + * @author EllisLab Dev Team + * @link https://codeigniter.com/user_guide/database/ + */ +class CI_DB_pdo_sqlsrv_forge extends CI_DB_pdo_forge { + + /** + * CREATE TABLE IF statement + * + * @var string + */ + protected $_create_table_if = "IF NOT EXISTS (SELECT * FROM sysobjects WHERE ID = object_id(N'%s') AND OBJECTPROPERTY(id, N'IsUserTable') = 1)\nCREATE TABLE"; + + /** + * DROP TABLE IF statement + * + * @var string + */ + protected $_drop_table_if = "IF EXISTS (SELECT * FROM sysobjects WHERE ID = object_id(N'%s') AND OBJECTPROPERTY(id, N'IsUserTable') = 1)\nDROP TABLE"; + + /** + * UNSIGNED support + * + * @var array + */ + protected $_unsigned = array( + 'TINYINT' => 'SMALLINT', + 'SMALLINT' => 'INT', + 'INT' => 'BIGINT', + 'REAL' => 'FLOAT' + ); + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('ADD', 'DROP'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table).' ALTER COLUMN '; + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + $sqls[] = $sql.$this->_process_column($field[$i]); + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + if (isset($attributes['CONSTRAINT']) && strpos($attributes['TYPE'], 'INT') !== FALSE) + { + unset($attributes['CONSTRAINT']); + } + + switch (strtoupper($attributes['TYPE'])) + { + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'INTEGER': + $attributes['TYPE'] = 'INT'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'int') !== FALSE) + { + $field['auto_increment'] = ' IDENTITY(1,1)'; + } + } + +} |