SW/Catalog/Helper/Product/View.php

View.php

<?php

class SW_Catalog_Helper_Product_View extends Mage_Catalog_Helper_Product_View
{

    public function initProductLayout($product, $controller)
    {
        $design = Mage::getSingleton('catalog/design');
        $settings = $design->getDesignSettings($product);

        if ($settings->getCustomDesign()) {
            $design->applyCustomDesign($settings->getCustomDesign());
        }

        $update = $controller->getLayout()->getUpdate();
        $update->addHandle('default');
        $controller->addActionLayoutHandles();

        $update->addHandle('PRODUCT_TYPE_' . $product->getTypeId());

	//SW - get attribute set name
        $attributeSetModel = Mage::getModel("eav/entity_attribute_set");
        $attributeSetModel->load($product->getAttributeSetId());
        $attributeSetName = $attributeSetModel->getAttributeSetName();
        
        //SW - add layout handle for attribute set name
        $update->addHandle('PRODUCT_ATTRIBUTE_SET_'.$attributeSetName);		

        $update->addHandle('PRODUCT_' . $product->getId());
				
        $controller->loadLayoutUpdates();

        // Apply custom layout update once layout is loaded
        $layoutUpdates = $settings->getLayoutUpdates();
        if ($layoutUpdates) {
            if (is_array($layoutUpdates)) {
                foreach($layoutUpdates as $layoutUpdate) {
                    $update->addUpdate($layoutUpdate);
                }
            }
        }

        $controller->generateLayoutXml()->generateLayoutBlocks();

        // Apply custom layout (page) template once the blocks are generated
        if ($settings->getPageLayout()) {
            $controller->getLayout()->helper('page/layout')->applyTemplate($settings->getPageLayout());
        }

        $currentCategory = Mage::registry('current_category');
        $root = $controller->getLayout()->getBlock('root');
        if ($root) {
            $controllerClass = $controller->getFullActionName();
            if ($controllerClass != 'catalog-product-view') {
                $root->addBodyClass('catalog-product-view');
            }
            $root->addBodyClass('product-' . $product->getUrlKey());
            if ($currentCategory instanceof Mage_Catalog_Model_Category) {
                $root->addBodyClass('categorypath-' . $currentCategory->getUrlPath())
                    ->addBodyClass('category-' . $currentCategory->getUrlKey());
            }
        }

        return $this;
    }
}