diff options
Diffstat (limited to 'system/drivers/DB_odbc.php')
| -rw-r--r-- | system/drivers/DB_odbc.php | 610 |
1 files changed, 0 insertions, 610 deletions
diff --git a/system/drivers/DB_odbc.php b/system/drivers/DB_odbc.php deleted file mode 100644 index cdd2f4513..000000000 --- a/system/drivers/DB_odbc.php +++ /dev/null @@ -1,610 +0,0 @@ -<?php if (!defined('BASEPATH')) exit('No direct script access allowed'); -/** - * Code Igniter - * - * An open source application development framework for PHP 4.3.2 or newer - * - * @package CodeIgniter - * @author Rick Ellis - * @copyright Copyright (c) 2006, pMachine, Inc. - * @license http://www.codeignitor.com/user_guide/license.html - * @link http://www.codeigniter.com - * @since Version 1.0 - * @filesource - */ - -// ------------------------------------------------------------------------ - -/** - * ODBC Database Adapter Class - * - * Note: _DB is an extender class that the app controller - * creates dynamically based on whether the active record - * class is being used or not. - * - * @package CodeIgniter - * @subpackage Drivers - * @category Database - * @author Rick Ellis - * @link http://www.codeigniter.com/user_guide/libraries/database/ - */ -class CI_DB_odbc extends CI_DB { - - /** - * Non-persistent database connection - * - * @access private called by the base class - * @return resource - */ - function db_connect() - { - return odbc_connect($this->database, $this->username, $this->password); - } - - // -------------------------------------------------------------------- - - /** - * Persistent database connection - * - * @access private called by the base class - * @return resource - */ - function db_pconnect() - { - return odbc_pconnect($this->database, $this->username, $this->password); - } - - // -------------------------------------------------------------------- - - /** - * Select the database - * - * @access private called by the base class - * @return resource - */ - function db_select() - { - // Not needed for ODBC - return TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Execute the query - * - * @access private called by the base class - * @param string an SQL query - * @return resource - */ - function _execute($sql) - { - $sql = $this->_prep_query($sql); - return @odbc_exec($this->conn_id, $sql); - } - - // -------------------------------------------------------------------- - - /** - * Prep the query - * - * If needed, each database adapter can prep the query string - * - * @access private called by execute() - * @param string an SQL query - * @return string - */ - function _prep_query($sql) - { - return $sql; - } - - // -------------------------------------------------------------------- - - /** - * Begin Transaction - * - * @access public - * @return bool - */ - function trans_begin($test_mode = FALSE) - { - if ( ! $this->trans_enabled) - { - return TRUE; - } - - // When transactions are nested we only begin/commit/rollback the outermost ones - if ($this->_trans_depth > 0) - { - return TRUE; - } - - // 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. - $this->_trans_failure = ($test_mode === TRUE) ? TRUE : FALSE; - - return odbc_autocommit($this->conn_id, FALSE); - } - - // -------------------------------------------------------------------- - - /** - * Commit Transaction - * - * @access public - * @return bool - */ - function trans_commit() - { - if ( ! $this->trans_enabled) - { - return TRUE; - } - - // When transactions are nested we only begin/commit/rollback the outermost ones - if ($this->_trans_depth > 0) - { - return TRUE; - } - - $ret = odbc_commit($this->conn_id); - odbc_autocommit($this->conn_id, TRUE); - return $ret; - } - - // -------------------------------------------------------------------- - - /** - * Rollback Transaction - * - * @access public - * @return bool - */ - function trans_rollback() - { - if ( ! $this->trans_enabled) - { - return TRUE; - } - - // When transactions are nested we only begin/commit/rollback the outermost ones - if ($this->_trans_depth > 0) - { - return TRUE; - } - - $ret = odbc_rollback($this->conn_id); - odbc_autocommit($this->conn_id, TRUE); - return $ret; - } - - // -------------------------------------------------------------------- - - /** - * Escape String - * - * @access public - * @param string - * @return string - */ - function escape_str($str) - { - // ODBC doesn't require escaping - return $str; - } - - // -------------------------------------------------------------------- - - /** - * Close DB Connection - * - * @access public - * @param resource - * @return void - */ - function destroy($conn_id) - { - odbc_close($conn_id); - } - - // -------------------------------------------------------------------- - - /** - * Affected Rows - * - * @access public - * @return integer - */ - function affected_rows() - { - return @odbc_num_rows($this->conn_id); - } - - // -------------------------------------------------------------------- - - /** - * Insert ID - * - * @access public - * @return integer - */ - function insert_id() - { - return @odbc_insert_id($this->conn_id); - } - - // -------------------------------------------------------------------- - - /** - * "Count All" query - * - * Generates a platform-specific query string that counts all records in - * the specified database - * - * @access public - * @param string - * @return string - */ - function count_all($table = '') - { - if ($table == '') - return '0'; - - $query = $this->query("SELECT COUNT(*) AS numrows FROM `".$this->dbprefix.$table."`"); - - if ($query->num_rows() == 0) - return '0'; - - $row = $query->row(); - return $row->numrows; - } - - // -------------------------------------------------------------------- - - /** - * The error message string - * - * @access public - * @return string - */ - function error_message() - { - return odbc_errormsg($this->conn_id); - } - - // -------------------------------------------------------------------- - - /** - * The error message number - * - * @access public - * @return integer - */ - function error_number() - { - return odbc_error($this->conn_id); - } - - // -------------------------------------------------------------------- - - /** - * Escape Table Name - * - * This function adds backticks if the table name has a period - * in it. Some DBs will get cranky unless periods are escaped - * - * @access public - * @param string the table name - * @return string - */ - function escape_table($table) - { - if (stristr($table, '.')) - { - $table = preg_replace("/\./", "`.`", $table); - } - - return $table; - } - - // -------------------------------------------------------------------- - - /** - * Field data query - * - * Generates a platform-specific query so that the column data can be retrieved - * - * @access public - * @param string the table name - * @return object - */ - function _field_data($table) - { - $sql = "SELECT TOP 1 FROM ".$this->escape_table($table); - $query = $this->query($sql); - return $query->field_data(); - } - - // -------------------------------------------------------------------- - - /** - * Insert statement - * - * Generates a platform-specific insert string from the supplied data - * - * @access public - * @param string the table name - * @param array the insert keys - * @param array the insert values - * @return string - */ - function _insert($table, $keys, $values) - { - return "INSERT INTO ".$this->escape_table($table)." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")"; - } - - // -------------------------------------------------------------------- - - /** - * Update statement - * - * Generates a platform-specific update string from the supplied data - * - * @access public - * @param string the table name - * @param array the update data - * @param array the where clause - * @return string - */ - function _update($table, $values, $where) - { - foreach($values as $key => $val) - { - $valstr[] = $key." = ".$val; - } - - return "UPDATE ".$this->escape_table($table)." SET ".implode(', ', $valstr)." WHERE ".implode(" ", $where); - } - - // -------------------------------------------------------------------- - - /** - * Delete statement - * - * Generates a platform-specific delete string from the supplied data - * - * @access public - * @param string the table name - * @param array the where clause - * @return string - */ - function _delete($table, $where) - { - return "DELETE FROM ".$this->escape_table($table)." WHERE ".implode(" ", $where); - } - - // -------------------------------------------------------------------- - - /** - * Version number query string - * - * @access public - * @return string - */ - function _version() - { - return "SELECT version() AS ver"; - } - - // -------------------------------------------------------------------- - - /** - * Show table query - * - * Generates a platform-specific query string so that the table names can be fetched - * - * @access public - * @return string - */ - function _show_tables() - { - return "SHOW TABLES FROM `".$this->database."`"; - } - - // -------------------------------------------------------------------- - - /** - * Show columnn query - * - * Generates a platform-specific query string so that the column names can be fetched - * - * @access public - * @param string the table name - * @return string - */ - function _show_columns($table = '') - { - return "SHOW COLUMNS FROM ".$this->escape_table($table); - } - - // -------------------------------------------------------------------- - - /** - * Limit string - * - * Generates a platform-specific LIMIT clause - * - * @access public - * @param string the sql query string - * @param integer the number of rows to limit the query to - * @param integer the offset value - * @return string - */ - function _limit($sql, $limit, $offset) - { - // Does ODBC doesn't use the LIMIT clause? - return $sql; - } - -} - - -/** - * ODBC Result Class - * - * This class extends the parent result class: CI_DB_result - * - * @category Database - * @author Rick Ellis - * @link http://www.codeigniter.com/user_guide/libraries/database/ - */ -class CI_DB_odbc_result extends CI_DB_result { - - /** - * Number of rows in the result set - * - * @access public - * @return integer - */ - function num_rows() - { - return @odbc_num_rows($this->result_id); - } - - // -------------------------------------------------------------------- - - /** - * Number of fields in the result set - * - * @access public - * @return integer - */ - function num_fields() - { - return @odbc_num_fields($this->result_id); - } - - // -------------------------------------------------------------------- - - /** - * Field data - * - * Generates an array of objects containing field meta-data - * - * @access public - * @return array - */ - function field_data() - { - $retval = array(); - for ($i = 0; $i < $this->num_fields(); $i++) - { - $F = new stdClass(); - $F->name = odbc_field_name($this->result_id, $i); - $F->type = odbc_field_type($this->result_id, $i); - $F->max_length = odbc_field_len($this->result_id, $i); - $F->primary_key = 0; - $F->default = ''; - - $retval[] = $F; - } - - return $retval; - } - - // -------------------------------------------------------------------- - - /** - * Result - associative array - * - * Returns the result set as an array - * - * @access private - * @return array - */ - function _fetch_assoc() - { - if (function_exists('odbc_fetch_object')) - { - return odbc_fetch_array($this->result_id); - } - else - { - return $this->_odbc_fetch_array($this->result_id); - } - } - - // -------------------------------------------------------------------- - - /** - * Result - object - * - * Returns the result set as an object - * - * @access private - * @return object - */ - function _fetch_object() - { - if (function_exists('odbc_fetch_object')) - { - return odbc_fetch_object($this->result_id); - } - else - { - return $this->_odbc_fetch_object($this->result_id); - } - } - - - /** - * Result - object - * - * subsititutes the odbc_fetch_object function when - * not available (odbc_fetch_object requires unixODBC) - * - * @access private - * @return object - */ - - function _odbc_fetch_object(& $odbc_result) { - $rs = array(); - $rs_obj = false; - if (odbc_fetch_into($odbc_result, $rs)) { - foreach ($rs as $k=>$v) { - $field_name= odbc_field_name($odbc_result, $k+1); - $rs_obj->$field_name = $v; - } - } - return $rs_obj; - } - - - /** - * Result - array - * - * subsititutes the odbc_fetch_array function when - * not available (odbc_fetch_array requires unixODBC) - * - * @access private - * @return array - */ - - function _odbc_fetch_array(& $odbc_result) { - $rs = array(); - $rs_assoc = false; - if (odbc_fetch_into($odbc_result, $rs)) { - $rs_assoc=array(); - foreach ($rs as $k=>$v) { - $field_name= odbc_field_name($odbc_result, $k+1); - $rs_assoc[$field_name] = $v; - } - } - return $rs_assoc; - } - -} - -?>
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