Хуки для шаблонов мета-тегов в интернет-магазине

class Shop_Item_Observer
{
   static public function onCallNewDescription($object, $args)
   {
      $oShop = $object->Shop;

      $aShortcuts = $oShop->Shop_Items->getAllByShortcut_id($object->id, FALSE);
      
      $aParents = array($object->Shop_Group->name);
      
      foreach ($aShortcuts as $oShortcut)
      {
         $oShop_Group = $oShortcut->Shop_Group;

         $aParentGroups = array();

         $aTmpGroup = $oShop_Group;

         // Добавляем все директории от текущей до родителя.
         do {
            $aParentGroups[] = $aTmpGroup->name;
         } while ($aTmpGroup = $aTmpGroup->getParent());
         
         $aParents[]=array_pop($aParentGroups);         
      }
      
      $aParents = array_unique($aParents);
      
      $sParents = implode(', ', array_reverse($aParents));
      
      return $sParents;
      
   }
}

Core_Event::attach('shop_item.onCallNewDescription', array('Shop_Item_Observer', 'onCallNewDescription'));

class Shop_Group_Observer
{
   static public function onCallNewDescription($object, $args)
   {
      if($object->description){
         $aDesc = explode(".", $object->description);
         return $aDesc[0];
      }
   }
}

Core_Event::attach('shop_group.onCallNewDescription', array('Shop_Group_Observer', 'onCallNewDescription'));