<?php

class CustomValuesEventHandler extends InpDBEventHandler {
	
	
	function SetCustomQuery(&$event)
	{
		$object =& $event->getObject();
		
		$top_prefix = $this->Application->GetTopmostPrefix($event->Prefix);
		$item_type = $this->Application->getUnitOption($top_prefix, 'ItemType');
		
		$item_resource_id = $this->GetParentResourceId($event);
		
		// there is no ResourceId when creating new item, but we need some id for SQL to work
		if (!$item_resource_id) $item_resource_id = 0; 
				
		$sql = str_replace('#ITEM_RESOURCE_ID#',$item_resource_id,$object->SelectClause);
		$object->setSelectSQL($sql);
		
		$object->removeFilter('parent_filter');
		$object->addFilter('itemtype_filter', 'Type = '.$item_type);
		if ($event->Special=='general') $object->addFilter('generaltab_filter','OnGeneralTab = 1');

		$object->SetPerPage(-1);
	}
	
	/**
	 * Enter description here...
	 *
	 * @param kEvent $event
	 * @return unknown
	 */
	function GetParentResourceId(&$event)
	{
		$object = &$event->getObject();
		$top_object = $this->Application->RecallObject( $this->Application->GetTopmostPrefix($event->Prefix) );
		return $top_object->GetDBField('ResourceId');
	}
	
	function OnPreSave(&$event)
	{
		$object =& $event->getObject();
		
		$items_info = $this->Application->GetVar( $event->getPrefixSpecial(true) );
		if($items_info)
		{
			$lang_id = $this->Application->GetVar('m_lang');
			foreach($items_info as $custom_field_id => $values)
			{
				$set_values = Array(
					'CustomFieldId' => $custom_field_id,
					'l'.$lang_id.'_Value' => $values['l'.$lang_id.'_Value'],
					'ResourceId' => $values['ResourceId'] != 0 ? $values['ResourceId'] : $this->GetParentResourceId($event),
				);
				
				// ResourceId will be -1 if we are creating new product, then we get ID directly, 
				// because it should be already set by parent' event, as we are in hAFTER hook
				
				$id = $values['CustomDataId'];
				if ($id) { //if it's already existing custom field record - update id
					$object->SetDefaultValues();
					$object->Load($id);
	 				$object->SetFieldsFromHash($set_values);
					if( $object->Update($id) )
					{
						$event->status=erSUCCESS;
					}
					else 
					{
						$event->status=erFAIL;
						$event->redirect=false;
						break;
					}
				}
				else { //new custom field record - create it and set temp id!
					$object->SetDefaultValues();
	 				$object->SetFieldsFromHash($set_values);
					if( $object->Create(null, true) )
					{
						$object->setTempID();
						$event->status=erSUCCESS;
					}
				}
			}	
		}
		
		// this is critical, as the object here is Item, but if something fails, the template could use the same name as grid
		// the problem appeared on products general tab, when validation does not go through for product,
		// and the templates is getting parsed
		$this->Application->removeObject($event->Prefix_Special);
	
	}
}

?>