<?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_Reports
 * @copyright   Copyright (c) 2013 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */


/**
 * Report Customers Tags collection
 *
 * @category    Mage
 * @package     Mage_Reports
 * @author      Magento Core Team <core@magentocommerce.com>
 */
class Mage_Reports_Model_Resource_Tag_Customer_Collection extends Mage_Tag_Model_Resource_Customer_Collection
{
    protected function _construct()
    {
        parent::_construct();
        $this->_useAnalyticFunction = true;
    }
    /**
     * Add target count
     *
     * @return Mage_Reports_Model_Resource_Tag_Customer_Collection
     */
    public function addTagedCount()
    {
        $this->getSelect()
            ->columns(array('taged' => 'COUNT(tr.tag_relation_id)'));
        return $this;
    }

    /**
     * get select count sql
     *
     * @return string
     */
    public function getSelectCountSql()
    {
        $countSelect = clone $this->getSelect();
        $countSelect->reset(Zend_Db_Select::ORDER);
        $countSelect->reset(Zend_Db_Select::GROUP);
        $countSelect->reset(Zend_Db_Select::LIMIT_COUNT);
        $countSelect->reset(Zend_Db_Select::LIMIT_OFFSET);
        $countSelect->reset(Zend_Db_Select::COLUMNS);
        $countSelect->columns("COUNT(DISTINCT tr.customer_id)");

        return $countSelect;
    }
}
