<?php
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @category    Mage
 * @package     Mage_Eav
 * @copyright   Copyright (c) 2012 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */


/**
 * Eav Form Element Resource Model
 *
 * @category    Mage
 * @package     Mage_Eav
 * @author      Magento Core Team <core@magentocommerce.com>
 */
class Mage_Eav_Model_Resource_Form_Element extends Mage_Core_Model_Resource_Db_Abstract
{
    /**
     * Initialize connection and define main table
     */
    protected function _construct()
    {
        $this->_init('eav/form_element', 'element_id');
        $this->addUniqueField(array(
            'field' => array('type_id', 'attribute_id'),
            'title' => Mage::helper('eav')->__('Form Element with the same attribute')
        ));
    }

    /**
     * Retrieve select object for load object data
     *
     * @param string $field
     * @param mixed $value
     * @param Mage_Eav_Model_Form_Element $object
     * @return Varien_Db_Select
     */
    protected function _getLoadSelect($field, $value, $object)
    {
        $select = parent::_getLoadSelect($field, $value, $object);
        $select->join(
            $this->getTable('eav/attribute'),
            $this->getTable('eav/attribute') . '.attribute_id = ' . $this->getMainTable() . '.attribute_id',
            array('attribute_code', 'entity_type_id')
        );

        return $select;
    }
}