<?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_GoogleBase
 * @copyright  Copyright (c) 2008 Irubin Consulting Inc. DBA Varien (http://www.varien.com)
 * @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * GoogleBase Attributes collection
 *
 * @category   Mage
 * @package    Mage_GoogleBase
 * @author     Magento Core Team <core@magentocommerce.com>
 */
class Mage_GoogleBase_Model_Mysql4_Attribute_Collection extends Mage_Core_Model_Mysql4_Collection_Abstract
{
	/**
	 * Whether to join attribute_set_id to attributes or not
	 */
    protected $_joinAttributeSetFlag = true;


	protected function _construct()
	{
		$this->_init('googlebase/attribute');
	}

	public function addAttributeSetFilter($attributeSetId)
	{
	    if (!$this->getJoinAttributeSetFlag()) {
	        return $this;
	    }
	    $this->getSelect()->where('attribute_set_id = ?', $attributeSetId);
	    return $this;
	}

	public function addTypeFilter($type_id)
	{
	    $this->getSelect()->where('main_table.type_id = ?', $type_id);
	    return $this;
	}

	public function load($printQuery = false, $logQuery = false)
    {
        if ($this->isLoaded()) {
            return $this;
        }
        if ($this->getJoinAttributeSetFlag()) {
            $this->_joinAttributeSet();
        }
        parent::load($printQuery, $logQuery);
        return $this;
    }

    protected function _joinAttributeSet()
	{
        $this->getSelect()
            ->joinInner(
                array('types'=>$this->getTable('googlebase/types')),
                'main_table.type_id=types.type_id',
                array('attribute_set_id' => 'types.attribute_set_id'));
        return $this;
	}

	public function getJoinAttributeSetFlag()
	{
	    return $this->_joinAttributeSetFlag;
	}

	public function setJoinAttributeSetFlag($flag)
	{
	    return $this->_joinAttributeSetFlag = (bool)$flag;
	}
}