?
Path : /home/admin/public_html/old/libraries/rokcommon/Doctrine/Connection/ |
Current File : /home/admin/public_html/old/libraries/rokcommon/Doctrine/Connection/Oracle.php |
<?php /* * $Id: Oracle.php 10831 2013-05-29 19:32:17Z btowles $ * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * This software consists of voluntary contributions made by many individuals * and is licensed under the LGPL. For more information, see * <http://www.doctrine-project.org>. */ /** * Doctrine_Connection_Oracle * * @package Doctrine * @subpackage Connection * @license http://www.opensource.org/licenses/lgpl-license.php LGPL * @link www.doctrine-project.org * @since 1.0 * @version $Revision: 7664 $ * @author Konsta Vesterinen <kvesteri@cc.hut.fi> */ class Doctrine_Connection_Oracle extends Doctrine_Connection_Common { /** * @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->properties['sql_file_delimiter'] = "\n/\n"; $this->properties['number_max_precision'] = 38; $this->properties['max_identifier_length'] = 30; parent::__construct($manager, $adapter); // moving properties to params to make them changeable by user // VARCHAR2 allowed length is 4000 BYTE. For UTF8 strings is better to use 1000 CHAR $this->setParam('varchar2_max_length', 4000); // Oracle's default unit for char data types is BYTE. For UTF8 string it is better to use CHAR $this->setParam('char_unit', null); } /** * Sets up the date/time format * */ public function setDateFormat($format = 'YYYY-MM-DD HH24:MI:SS') { $this->exec('ALTER SESSION SET NLS_DATE_FORMAT = "' . $format . '"'); } /** * 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 = false, $offset = false, $isManip = false) { return $this->_createLimitSubquery($query, $limit, $offset); } private function _createLimitSubquery($query, $limit, $offset, $column = null) { $limit = (int) $limit; $offset = (int) $offset; if (preg_match('/^\s*SELECT/i', $query)) { if ( ! preg_match('/\sFROM\s/i', $query)) { $query .= " FROM dual"; } if ($limit > 0) { $max = $offset + $limit; $column = $column === null ? '*' : $this->quoteIdentifier($column); if ($offset > 0) { $min = $offset + 1; $query = 'SELECT '.$this->quoteIdentifier('b').'.'.$column.' FROM ( '. 'SELECT '.$this->quoteIdentifier('a').'.*, ROWNUM AS doctrine_rownum FROM ( ' . $query . ' ) ' . $this->quoteIdentifier('a') . ' '. ' ) ' . $this->quoteIdentifier('b') . ' '. 'WHERE doctrine_rownum BETWEEN ' . $min . ' AND ' . $max; } else { $query = 'SELECT a.'.$column.' FROM ( ' . $query .' ) a WHERE ROWNUM <= ' . $max; } } } return $query; } /** * Creates the SQL for Oracle that can be used in the subquery for the limit-subquery * algorithm. */ public function modifyLimitSubquery(Doctrine_Table $rootTable, $query, $limit = false, $offset = false, $isManip = false) { // NOTE: no composite key support $columnNames = $rootTable->getIdentifierColumnNames(); if (count($columnNames) > 1) { throw new Doctrine_Connection_Exception("Composite keys in LIMIT queries are " . "currently not supported."); } $column = $columnNames[0]; return $this->_createLimitSubquery($query, $limit, $offset, $column); } public function getTmpConnection($info) { return clone $this; } /** * Override quote behaviour for boolean to fix issues with quoting of * boolean values. */ public function quote($input, $type = null) { if ($type === 'boolean') { if ($input === null) { return null; } else { return $input ? 1 : 0; } } else { return parent::quote($input, $type); } } }