/**
* Prepare products collection, defined collection filters (category, product type)
*
* @return Mage_Adminhtml_Block_Widget_Grid
*/
protected function _prepareCollection()
{
/* @var $collection Mage_Catalog_Model_Resource_Eav_Mysql4_Product_Collection */
$collection = Mage::getResourceModel('catalog/product_collection')->setStoreId(0)->addAttributeToSelect('name');
if ($categoryId = $this->getCategoryId()) {
$category = Mage::getModel('catalog/category')->load($categoryId);
if ($category->getId()) {
// $collection->addCategoryFilter($category);
$productIds = $category->getProductsPosition();
$productIds = array_keys($productIds);
if (empty($productIds)) {
$productIds = 0;
}
$collection->addFieldToFilter('entity_id', array('in' => $productIds));
}
}
if ($productTypeId = $this->getProductTypeId()) {
$collection->addAttributeToFilter('type_id', $productTypeId);
}
$this->setCollection($collection);
return parent::_prepareCollection();
}
