/**
* Retrieve loaded category collection
*
* @return Mage_Eav_Model_Entity_Collection_Abstract
*/
protected function _getProductCollection()
{
if (is_null($this->_productCollection)) {
$layer = $this->getLayer();
/* @var $layer Mage_Catalog_Model_Layer */
if ($this->getShowRootCategory()) {
$this->setCategoryId(Mage::app()->getStore()->getRootCategoryId());
}
// if this is a product view page
if (Mage::registry('product')) {
// get collection of categories this product is associated with
$categories = Mage::registry('product')->getCategoryCollection()->setPage(1, 1)->load();
// if the product is associated with any category
if ($categories->count()) {
// show products from this category
$this->setCategoryId(current($categories->getIterator()));
}
}
$origCategory = null;
if ($this->getCategoryId()) {
$category = Mage::getModel('catalog/category')->load($this->getCategoryId());
if ($category->getId()) {
$origCategory = $layer->getCurrentCategory();
$layer->setCurrentCategory($category);
}
}
$this->_productCollection = $layer->getProductCollection();
/* Custom code added to filter out-of-stock products*/
// Start here - Added on 5th June by Anil
if ($this->getRequest()->getParam('exclude_out_of_stock', 0)) {
$oCollection = Mage::getModel('cataloginventory/stock_item')->getCollection()->addFieldToFilter('is_in_stock', 0);
$oProducts = array();
foreach ($oCollection as $_collection) {
$oProducts[] = $_collection->getProductId();
}
if (!empty($oProducts)) {
$this->_productCollection->addIdFilter($oProducts, true);
}
}
// End here
$this->prepareSortableFieldsByCategory($layer->getCurrentCategory());
if ($origCategory) {
$layer->setCurrentCategory($origCategory);
}
}
return $this->_productCollection;
}
