Fix problem with escaping quotes on symfonys sfFormFilter

<?php
/**
  * For now only works with Text filters and only for sfFormFilterDoctrine
  * The problem of not escaping quotes was found with mysql
  * Since the task doctrine:build-filters generates all formfilters extended from BaseFormFilterDoctrine we rewtirte there the addTextQuery method
  */
abstract class BaseFormFilterDoctrine extends sfFormFilterDoctrine
{
  public function setup()
  {
  }

  protected function addTextQuery(Doctrine_Query $query, $field, $values)
  {
    $fieldName = $this->getFieldName($field);

    if (is_array($values) && isset($values['is_empty']) && $values['is_empty'])
    {
      $query->addWhere(sprintf('(%s.%s IS NULL OR %1$s.%2$s = ?)', $query->getRootAlias(), $fieldName), array(''));
    }
    else if (is_array($values) && isset($values['text']) && '' != $values['text'])
    {
      $quotedValue = $query->getConnection()->getDbh()->quote('%'.$values['text'].'%', PDO::PARAM_STR); //escapes the quotes in the value, maybe you want to search text witch has quotes

      $query->addWhere(sprintf('%s.%s LIKE %s', $query->getRootAlias(), $fieldName,$quotedValue));
    }
  }
}
?>