<?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_CatalogSearch
 * @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)
 */


/**
 * Fulltext Collection
 *
 * @category    Mage
 * @package     Mage_CatalogSearch
 * @author      Magento Core Team <core@magentocommerce.com>
 */
class MT_Filter_Model_Resource_Fulltext_Collection extends MT_Filter_Model_Resource_Product_Collection
{
    /**
     * Retrieve query model object
     *
     * @return Mage_CatalogSearch_Model_Query
     */
    protected function _getQuery()
    {
        return Mage::helper('catalogsearch')->getQuery();
    }

    /**
     * Add search query filter
     *
     * @param string $query
     * @return Mage_CatalogSearch_Model_Resource_Fulltext_Collection
     */
    public function addSearchFilter($query)
    {
        Mage::getSingleton('catalogsearch/fulltext')->prepareResult();

        $this->getSelect()->joinInner(
            array('search_result' => $this->getTable('catalogsearch/result')),
            $this->getConnection()->quoteInto(
                'search_result.product_id=e.entity_id AND search_result.query_id=?',
                $this->_getQuery()->getId()
            ),
            array('relevance' => 'relevance')
        );

        return $this;
    }

    /**
     * Set Order field
     *
     * @param string $attribute
     * @param string $dir
     * @return Mage_CatalogSearch_Model_Resource_Fulltext_Collection
     */
    public function setOrder($attribute, $dir = 'desc')
    {
        if ($attribute == 'relevance') {
            $this->getSelect()->order("relevance {$dir}");
        } else {
            parent::setOrder($attribute, $dir);
        }
        return $this;
    }

    /**
     * Stub method for campatibility with other search engines
     *
     * @return Mage_CatalogSearch_Model_Resource_Fulltext_Collection
     */
    public function setGeneralDefaultQuery()
    {
        return $this;
    }
}
