diff options
Diffstat (limited to 'system/database/drivers/ibase/ibase_driver.php')
| -rw-r--r-- | system/database/drivers/ibase/ibase_driver.php | 130 |
1 files changed, 52 insertions, 78 deletions
diff --git a/system/database/drivers/ibase/ibase_driver.php b/system/database/drivers/ibase/ibase_driver.php index c9027670d..fc1c28f31 100644 --- a/system/database/drivers/ibase/ibase_driver.php +++ b/system/database/drivers/ibase/ibase_driver.php @@ -1,4 +1,4 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php /** * CodeIgniter * @@ -24,6 +24,7 @@ * @since Version 3.0 * @filesource */ +defined('BASEPATH') OR exit('No direct script access allowed'); /** * Firebird/Interbase Database Adapter Class @@ -40,19 +41,30 @@ */ class CI_DB_ibase_driver extends CI_DB { + /** + * Database driver + * + * @var string + */ public $dbdriver = 'ibase'; - // The character used to escape with - protected $_escape_char = '"'; + // -------------------------------------------------------------------- - // clause and character used for LIKE escape sequences - protected $_like_escape_str = " ESCAPE '%s' "; - protected $_like_escape_chr = '!'; + /** + * ORDER BY random keyword + * + * @var string + */ + protected $_random_keyword = ' Random()'; - protected $_random_keyword = ' Random()'; // database specific random keyword + /** + * IBase Transaction status flag + * + * @var resource + */ + protected $_ibase_trans; - // Keeps track of the resource for the current transaction - protected $trans; + // -------------------------------------------------------------------- /** * Non-persistent database connection @@ -107,7 +119,7 @@ class CI_DB_ibase_driver extends CI_DB { /** * Execute the query * - * @param string an SQL query + * @param string $sql an SQL query * @return resource */ protected function _execute($sql) @@ -120,6 +132,7 @@ class CI_DB_ibase_driver extends CI_DB { /** * Begin Transaction * + * @param bool $test_mode * @return bool */ public function trans_begin($test_mode = FALSE) @@ -135,7 +148,7 @@ class CI_DB_ibase_driver extends CI_DB { // even if the queries produce a successful result. $this->_trans_failure = ($test_mode === TRUE); - $this->trans = @ibase_trans($this->conn_id); + $this->_ibase_trans = @ibase_trans($this->conn_id); return TRUE; } @@ -155,7 +168,7 @@ class CI_DB_ibase_driver extends CI_DB { return TRUE; } - return @ibase_commit($this->trans); + return @ibase_commit($this->_ibase_trans); } // -------------------------------------------------------------------- @@ -173,7 +186,7 @@ class CI_DB_ibase_driver extends CI_DB { return TRUE; } - return @ibase_rollback($this->trans); + return @ibase_rollback($this->_ibase_trans); } // -------------------------------------------------------------------- @@ -181,8 +194,8 @@ class CI_DB_ibase_driver extends CI_DB { /** * Escape String * - * @param string - * @param bool whether or not the string will be used in a LIKE condition + * @param string $str + * @param bool $like Whether or not the string will be used in a LIKE condition * @return string */ public function escape_str($str, $like = FALSE) @@ -242,7 +255,7 @@ class CI_DB_ibase_driver extends CI_DB { * * Generates a platform-specific query string so that the table names can be fetched * - * @param bool + * @param bool $prefix_limit * @return string */ protected function _list_tables($prefix_limit = FALSE) @@ -265,7 +278,7 @@ class CI_DB_ibase_driver extends CI_DB { * * Generates a platform-specific query string so that the column names can be fetched * - * @param string the table name + * @param string $table * @return string */ protected function _list_columns($table = '') @@ -280,12 +293,15 @@ class CI_DB_ibase_driver extends CI_DB { * * Generates a platform-specific query so that the column data can be retrieved * - * @param string the table name + * @param string $table * @return string */ protected function _field_data($table) { - return $this->_limit('SELECT * FROM '.$this->protect_identifiers($table), 1, NULL); + $this->qb_limit = 1; + $sql = $this->_limit('SELECT * FROM '.$this->protect_identifiers($table)); + $this->qb_limit = 0; + return $sql; } // -------------------------------------------------------------------- @@ -306,51 +322,18 @@ class CI_DB_ibase_driver extends CI_DB { // -------------------------------------------------------------------- /** - * From Tables - * - * This public function implicitly groups FROM tables so there is no confusion - * about operator precedence in harmony with SQL standards - * - * @param array - * @return string - */ - protected function _from_tables($tables) - { - return is_array($tables) ? implode(', ', $tables) : $tables; - } - - // -------------------------------------------------------------------- - - /** * Update statement * * Generates a platform-specific update string from the supplied data * - * @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 (ignored) - * @param array the like clause + * @param string $table + * @param array $values * @return string */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) + protected function _update($table, $values) { - foreach ($values as $key => $val) - { - $valstr[] = $key.' = '.$val; - } - - $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); - - if ( ! empty($like)) - { - $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); - } - - return 'UPDATE '.$table.' SET '.implode(', ', $valstr) - .$where - .(count($orderby) > 0 ? ' ORDER BY '.implode(', ', $orderby) : ''); + $this->qb_limit = FALSE; + return parent::_update($table, $values); } // -------------------------------------------------------------------- @@ -360,10 +343,10 @@ class CI_DB_ibase_driver extends CI_DB { * * Generates a platform-specific truncate string from the supplied data * - * If the database does not support the truncate() command, + * If the database does not support the TRUNCATE statement, * then this method maps to 'DELETE FROM table' * - * @param string the table name + * @param string $table * @return string */ protected function _truncate($table) @@ -378,46 +361,37 @@ class CI_DB_ibase_driver extends CI_DB { * * Generates a platform-specific delete string from the supplied data * - * @param string the table name - * @param array the where clause - * @param array the like clause - * @param string the limit clause (ignored) + * @param string $table * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _delete($table) { - $conditions = array(); - - empty($where) OR $conditions[] = implode(' ', $where); - empty($like) OR $conditions[] = implode(' ', $like); - - return 'DELETE FROM '.$table.(count($conditions) > 0 ? ' WHERE '.implode(' AND ', $conditions) : ''); + $this->qb_limit = FALSE; + return parent::_delete($table); } // -------------------------------------------------------------------- /** - * Limit string + * LIMIT * * Generates a platform-specific LIMIT clause * - * @param string the sql query string - * @param int the number of rows to limit the query to - * @param int the offset value + * @param string $sql SQL Query * @return string */ - protected function _limit($sql, $limit, $offset) + protected function _limit($sql) { // Limit clause depends on if Interbase or Firebird if (stripos($this->version(), 'firebird') !== FALSE) { - $select = 'FIRST '. (int) $limit - .($offset ? ' SKIP '. (int) $offset : ''); + $select = 'FIRST '.$this->qb_limit + .($this->qb_offset ? ' SKIP '.$this->qb_offset : ''); } else { $select = 'ROWS ' - .($offset ? (int) $offset.' TO '.($limit + $offset) : (int) $limit); + .($this->qb_offset ? $this->qb_offset.' TO '.($this->qb_limit + $this->qb_offset) : $this->qb_limit); } return preg_replace('`SELECT`i', 'SELECT '.$select, $sql); |