Регистрация. Проверка уникальности email - Joomla 2.5: Общие вопросы

		
// check for existing email
		$query->clear();
		$query->select($this->_db->quoteName('id'));
		$query->from($this->_db->quoteName('#__users'));
		$query->where($this->_db->quoteName('email'). ' = ' . $this->_db->quote($this->email));
		$query->where($this->_db->quoteName('id'). ' != ' . (int) $this->id);
		$this->_db->setQuery($query);
		$xid = intval($this->_db->loadResult());
		if ($xid && $xid != intval($this->id))
		{
			$this->setError(JText::_('JLIB_DATABASE_ERROR_EMAIL_INUSE'));
			return false;
		}