<?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_Adminhtml
 * @copyright   Copyright (c) 2010 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * Product attributes grid
 *
 * @category   Mage
 * @package    Mage_Adminhtml
 * @author     Magento Core Team <core@magentocommerce.com>
 */
class Mage_Adminhtml_Block_Catalog_Product_Attribute_Grid extends Mage_Eav_Block_Adminhtml_Attribute_Grid_Abstract
{
    /**
     * Prepare product attributes grid collection object
     *
     * @return Mage_Adminhtml_Block_Catalog_Product_Attribute_Grid
     */
    protected function _prepareCollection()
    {
        $collection = Mage::getResourceModel('catalog/product_attribute_collection')
            ->addVisibleFilter();
        $this->setCollection($collection);

        return parent::_prepareCollection();
    }

    /**
     * Prepare product attributes grid columns
     *
     * @return Mage_Adminhtml_Block_Catalog_Product_Attribute_Grid
     */
    protected function _prepareColumns()
    {
        parent::_prepareColumns();

        $this->addColumnAfter('is_visible', array(
            'header'=>Mage::helper('catalog')->__('Visible'),
            'sortable'=>true,
            'index'=>'is_visible_on_front',
            'type' => 'options',
            'options' => array(
                '1' => Mage::helper('catalog')->__('Yes'),
                '0' => Mage::helper('catalog')->__('No'),
            ),
            'align' => 'center',
        ), 'frontend_label');

        $this->addColumnAfter('is_global', array(
            'header'=>Mage::helper('catalog')->__('Scope'),
            'sortable'=>true,
            'index'=>'is_global',
            'type' => 'options',
            'options' => array(
                Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE =>Mage::helper('catalog')->__('Store View'),
                Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_WEBSITE =>Mage::helper('catalog')->__('Website'),
                Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_GLOBAL =>Mage::helper('catalog')->__('Global'),
            ),
            'align' => 'center',
        ), 'is_visible');

        $this->addColumn('is_searchable', array(
            'header'=>Mage::helper('catalog')->__('Searchable'),
            'sortable'=>true,
            'index'=>'is_searchable',
            'type' => 'options',
            'options' => array(
                '1' => Mage::helper('catalog')->__('Yes'),
                '0' => Mage::helper('catalog')->__('No'),
            ),
            'align' => 'center',
        ), 'is_user_defined');

        $this->addColumnAfter('is_filterable', array(
            'header'=>Mage::helper('catalog')->__('Use in Layered Navigation'),
            'sortable'=>true,
            'index'=>'is_filterable',
            'type' => 'options',
            'options' => array(
                '1' => Mage::helper('catalog')->__('Filterable (with results)'),
                '2' => Mage::helper('catalog')->__('Filterable (no results)'),
                '0' => Mage::helper('catalog')->__('No'),
            ),
            'align' => 'center',
        ), 'is_searchable');

        $this->addColumnAfter('is_comparable', array(
            'header'=>Mage::helper('catalog')->__('Comparable'),
            'sortable'=>true,
            'index'=>'is_comparable',
            'type' => 'options',
            'options' => array(
                '1' => Mage::helper('catalog')->__('Yes'),
                '0' => Mage::helper('catalog')->__('No'),
            ),
            'align' => 'center',
        ), 'is_filterable');

        return $this;
    }
}