Subversion-Projekte lars-tiefland.php_share

<?php

/*

 * This file is part of the symfony package.

 * (c) Fabien Potencier <fabien.potencier@symfony-project.com>

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

/**

 * sfValidatorPropelUnique validates that the uniqueness of a column.

 *

 * Warning: sfValidatorPropelUnique is susceptible to race conditions.

 * To avoid this issue, wrap the validation process and the model saving

 * inside a transaction.

 *

 * @package    symfony

 * @subpackage validator

 * @author     Fabien Potencier <fabien.potencier@symfony-project.com>

 * @version    SVN: $Id: sfValidatorPropelUnique.class.php 27940 2010-02-12 13:31:30Z Kris.Wallsmith $

 */

class sfValidatorPropelUnique extends sfValidatorSchema

{

  /**

   * Constructor.

   *

   * @param array  $options   An array of options

   * @param array  $messages  An array of error messages

   *

   * @see sfValidatorSchema

   */

  public function __construct($options = array(), $messages = array())

  {

    parent::__construct(null, $options, $messages);

  }

  /**

   * Configures the current validator.

   *

   * Available options:

   *

   *  * model:              The model class (required)

   *  * column:             The unique column name in Propel field name format (required)

   *                        If the uniqueness is for several columns, you can pass an array of field names

   *  * field               Field name used by the form, other than the column name

   *  * primary_key:        The primary key column name in Propel field name format (optional, will be introspected if not provided)

   *                        You can also pass an array if the table has several primary keys

   *  * connection:         The Propel connection to use (null by default)

   *  * throw_global_error: Whether to throw a global error (false by default) or an error tied to the first field related to the column option array

   *

   * @see sfValidatorBase

   */

  protected function configure($options = array(), $messages = array())

  {

    $this->addRequiredOption('model');

    $this->addRequiredOption('column');

    $this->addOption('field', null);

    $this->addOption('primary_key', null);

    $this->addOption('connection', null);

    $this->addOption('throw_global_error', false);

    $this->setMessage('invalid', 'An object with the same "%column%" already exist.');

  }

  /**

   * @see sfValidatorBase

   */

  protected function doClean($values)

  {

    if (!is_array($values))

    {

      throw new InvalidArgumentException('You must pass an array parameter to the clean() method (this validator can only be used as a post validator).');

    }

    if (!is_array($this->getOption('column')))

    {

      $this->setOption('column', array($this->getOption('column')));

    }

    $columns = $this->getOption('column');

    if (!is_array($field = $this->getOption('field')))

    {

      $this->setOption('field', $field ? array($field) : array());

    }

    $fields = $this->getOption('field');

    $criteria = new Criteria();

    foreach ($columns as $i => $column)

    {

      $name = isset($fields[$i]) ? $fields[$i] : $column;

      if (!array_key_exists($name, $values))

      {

        // one of the columns has be removed from the form

        return $values;

      }

      $colName = call_user_func(array(constant($this->getOption('model').'::PEER'), 'translateFieldName'), $column, BasePeer::TYPE_FIELDNAME, BasePeer::TYPE_COLNAME);

      $criteria->add($colName, $values[$name]);

    }

    $object = call_user_func(array(constant($this->getOption('model').'::PEER'), 'doSelectOne'), $criteria, $this->getOption('connection'));

    // if no object or if we're updating the object, it's ok

    if (null === $object || $this->isUpdate($object, $values))

    {

      return $values;

    }

    $error = new sfValidatorError($this, 'invalid', array('column' => implode(', ', $this->getOption('column'))));

    if ($this->getOption('throw_global_error'))

    {

      throw $error;

    }

    throw new sfValidatorErrorSchema($this, array(isset($fields[0]) ? $fields[0] : $columns[0] => $error));

  }

  /**

   * Returns whether the object is being updated.

   *

   * @param BaseObject  $object   A Propel object

   * @param array       $values   An array of values

   *

   * @return Boolean     true if the object is being updated, false otherwise

   */

  protected function isUpdate(BaseObject $object, $values)

  {

    // check each primary key column

    foreach ($this->getPrimaryKeys() as $column)

    {

      $columnPhpName = call_user_func(array(constant($this->getOption('model').'::PEER'), 'translateFieldName'), $column, BasePeer::TYPE_FIELDNAME, BasePeer::TYPE_PHPNAME);

      $method = 'get'.$columnPhpName;

      if (!isset($values[$column]) or $object->$method() != $values[$column])

      {

        return false;

      }

    }

    return true;

  }

  /**

   * Returns the primary keys for the model.

   *

   * @return array An array of primary keys

   */

  protected function getPrimaryKeys()

  {

    if (null === $this->getOption('primary_key'))

    {

      $primaryKeys = array();

      $tableMap = call_user_func(array(constant($this->getOption('model').'::PEER'), 'getTableMap'));

      foreach ($tableMap->getColumns() as $column)

      {

        if (!$column->isPrimaryKey())

        {

          continue;

        }

        $primaryKeys[] = call_user_func(array(constant($this->getOption('model').'::PEER'), 'translateFieldName'), $column->getPhpName(), BasePeer::TYPE_PHPNAME, BasePeer::TYPE_FIELDNAME);

      }

      $this->setOption('primary_key', $primaryKeys);

    }

    if (!is_array($this->getOption('primary_key')))

    {

      $this->setOption('primary_key', array($this->getOption('primary_key')));

    }

    return $this->getOption('primary_key');

  }

}