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doctrine2/website/plugins/sfDoctrinePlugin/lib/sfDoctrineUniqueValidator.php
2007-08-31 23:41:48 +00:00

106 lines
2.8 KiB
PHP

<?php
/*
* This file is part of the sfDoctrine package.
* (c) 2006-2007 Olivier Verdier <Olivier.Verdier@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* sfDoctrineUniqueValidator validates that the value does not already exists
*
* <b>Required parameters:</b>
*
* # <b>class</b> - [none] - Doctrine class name.
* # <b>column</b> - [none] - Doctrine column name.
*
* <b>Optional parameters:</b>
*
* # <b>unique_error</b> - [Uniqueness error] - An error message to use when
* the value for this column already
* exists in the database.
*
* @package symfony.plugins
* @subpackage sfDoctrine
* @author ?
* @author Olivier Verdier <Olivier.Verdier@gmail.com>
* @version SVN: $Id: sfDoctrineUniqueValidator.php 3428 2007-02-09 14:46:36Z chtito $
*/
class sfDoctrineUniqueValidator extends sfValidator
{
public function execute (&$value, &$error)
{
$className = $this->getParameter('class');
$columnName = $className.'.'.$this->getParameter('column');
$primaryKeys = sfDoctrine::getTable($className)->getPrimaryKeys();
foreach($primaryKeys as $primaryKey)
{
if(is_null($primaryKeyValue = $this->getContext()
->getRequest()
->getParameter($primaryKey)));
break;
}
$query = new Doctrine_Query();
$query->from($className);
if($primaryKeyValue === null)
{
$query->where($columnName.' = ?');
$res = $query->execute(array($value));
}
else
{
$query->where($columnName.' = ? AND '.$primaryKey.' != ?');
$res = $query->execute(array($value, $primaryKeyValue));
}
if(sizeof($res))
{
$error = $this->getParameterHolder()->get('unique_error');
return false;
}
return true;
}
/**
* Initialize this validator.
*
* @param sfContext The current application context.
* @param array An associative array of initialization parameters.
*
* @return bool true, if initialization completes successfully, otherwise false.
*/
public function initialize ($context, $parameters = null)
{
// initialize parent
parent::initialize($context);
// set defaults
$this->setParameter('unique_error', 'Uniqueness error');
$this->getParameterHolder()->add($parameters);
// check parameters
if (!$this->getParameter('class'))
{
throw new sfValidatorException('The "class" parameter is mandatory for the sfDoctrineUniqueValidator validator.');
}
if (!$this->getParameter('column'))
{
throw new sfValidatorException('The "column" parameter is mandatory for the sfDoctrineUniqueValidator validator.');
}
return true;
}
}