140 lines
4.9 KiB
PHP
140 lines
4.9 KiB
PHP
<?php
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/*
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* $Id$
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information, see
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* <http://www.phpdoctrine.com>.
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*/
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Doctrine::autoload('Doctrine_Transaction');
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/**
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*
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* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
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* @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library)
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @package Doctrine
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* @subpackage Transaction
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* @link www.phpdoctrine.com
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* @since 1.0
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* @version $Revision$
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*/
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class Doctrine_Transaction_Firebird extends Doctrine_Transaction
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{
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/**
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* createSavepoint
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* creates a new savepoint
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*
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* @param string $savepoint name of a savepoint to set
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* @return void
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*/
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protected function createSavePoint($savepoint)
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{
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$query = 'SAVEPOINT ' . $savepoint;
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return $this->conn->execute($query);
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}
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/**
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* releaseSavePoint
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* releases given savepoint
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*
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* @param string $savepoint name of a savepoint to release
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* @return void
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*/
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protected function releaseSavePoint($savepoint)
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{
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$query = 'RELEASE SAVEPOINT ' . $savepoint;
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return $this->conn->execute($query);
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}
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/**
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* rollbackSavePoint
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* releases given savepoint
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*
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* @param string $savepoint name of a savepoint to rollback to
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* @return void
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*/
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protected function rollbackSavePoint($savepoint)
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{
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$query = 'ROLLBACK TO SAVEPOINT '.$savepoint;
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return $this->conn->execute($query);
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}
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/**
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* Set the transacton isolation level.
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*
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* @param string standard isolation level (SQL-92)
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* READ UNCOMMITTED (allows dirty reads)
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* READ COMMITTED (prevents dirty reads)
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* REPEATABLE READ (prevents nonrepeatable reads)
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* SERIALIZABLE (prevents phantom reads)
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*
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* @param array some transaction options:
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* 'wait' => 'WAIT' | 'NO WAIT'
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* 'rw' => 'READ WRITE' | 'READ ONLY'
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*
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* @throws PDOException if something fails at the PDO level
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* @throws Doctrine_Transaction_Exception if using unknown isolation level or unknown wait option
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* @return void
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*/
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public function setIsolation($isolation, $options = array()) {
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switch ($isolation) {
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case 'READ UNCOMMITTED':
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$nativeIsolation = 'READ COMMITTED RECORD_VERSION';
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break;
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case 'READ COMMITTED':
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$nativeIsolation = 'READ COMMITTED NO RECORD_VERSION';
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break;
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case 'REPEATABLE READ':
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$nativeIsolation = 'SNAPSHOT';
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break;
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case 'SERIALIZABLE':
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$nativeIsolation = 'SNAPSHOT TABLE STABILITY';
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break;
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default:
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throw new Doctrine_Transaction_Exception('isolation level is not supported: ' . $isolation);
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}
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$rw = $wait = '';
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if (isset($options['wait'])) {
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switch ($options['wait']) {
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case 'WAIT':
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case 'NO WAIT':
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$wait = ' ' . $options['wait'];
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break;
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default:
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throw new Doctrine_Transaction_Exception('wait option is not supported: ' . $options['wait']);
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}
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}
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if (isset($options['rw'])) {
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switch ($options['rw']) {
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case 'READ ONLY':
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case 'READ WRITE':
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$rw = ' ' . $options['rw'];
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break;
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default:
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throw new Doctrine_Transaction_Exception('wait option is not supported: ' . $options['rw']);
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}
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}
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$query = 'SET TRANSACTION' . $rw . $wait .' ISOLATION LEVEL ' . $nativeIsolation;
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$this->conn->execute($query);
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}
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} |