. */ Doctrine::autoload('Doctrine_Connection'); /** * Doctrine_Connection_Oracle * * @package Doctrine * @license http://www.opensource.org/licenses/lgpl-license.php LGPL * @category Object Relational Mapping * @link www.phpdoctrine.com * @since 1.0 * @version $Revision$ * @author Konsta Vesterinen */ class Doctrine_Connection_Oracle extends Doctrine_Connection { /** * @var string $driverName the name of this connection driver */ protected $driverName = 'Oracle'; public function __construct(Doctrine_Manager $manager, $adapter) { $this->supported = array( 'sequences' => true, 'indexes' => true, 'summary_functions' => true, 'order_by_text' => true, 'current_id' => true, 'affected_rows' => true, 'transactions' => true, 'savepoints' => true, 'limit_queries' => true, 'LOBs' => true, 'replace' => 'emulated', 'sub_selects' => true, 'auto_increment' => false, // implementation is broken 'primary_key' => true, 'result_introspection' => true, 'prepared_statements' => true, 'identifier_quoting' => true, 'pattern_escaping' => true, ); /** $this->options['DBA_username'] = false; $this->options['DBA_password'] = false; $this->options['database_name_prefix'] = false; $this->options['emulate_database'] = true; $this->options['default_tablespace'] = false; $this->options['default_text_field_length'] = 2000; $this->options['result_prefetching'] = false; */ parent::__construct($manager, $adapter); } /** * Adds an driver-specific LIMIT clause to the query * * @param string $query query to modify * @param integer $limit limit the number of rows * @param integer $offset start reading from given offset * @return string the modified query */ public function modifyLimitQuery($query, $limit, $offset) { /** $e = explode("select ",strtolower($query)); $e2 = explode(" from ",$e[1]); $fields = $e2[0]; */ if (preg_match('/^\s*SELECT/i', $query)) { if ( ! preg_match('/\sFROM\s/i', $query)) { $query .= " FROM dual"; } if ($limit > 0) { // taken from http://svn.ez.no/svn/ezcomponents/packages/Database $max = $offset + $limit; if ($offset > 0) { $min = $offset + 1; $query = 'SELECT * FROM (SELECT a.*, ROWNUM dctrn_rownum FROM (' . $query . ') a WHERE ROWNUM <= ' . $max . ') WHERE dctrn_rownum >= ' . $min; } else { $query = 'SELECT a.* FROM (' . $query .') a WHERE ROWNUM <= ' . $max; } } } return $query; } }