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Created: Thu, Nov 20, 3:15 PM

favorites_eh.php
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	<?php
	/**
	* @version $Id: favorites_eh.php 16513 2017-01-20 14:10:53Z alex $
	* @package In-Portal
	* @copyright Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
	* @license GNU/GPL
	* In-Portal is Open Source software.
	* This means that this software may have been modified pursuant
	* the GNU General Public License, and as distributed it includes
	* or is derivative of works licensed under the GNU General Public License
	* or other free or open source software licenses.
	* See http://www.in-portal.org/license for copyright notices and details.
	*/

	defined('FULL_PATH') or die('restricted access!');

	class FavoritesEventHandler extends kDBEventHandler {

	/**
	* Allows to override standard permission mapping
	*
	* @return void
	* @access protected
	* @see kEventHandler::$permMapping
	*/
	protected function mapPermissions()
	{
	parent::mapPermissions();

	$permissions = Array (
	'OnFavoriteToggle' => Array ('subitem' => true),
	);

	$this->permMapping = array_merge($this->permMapping, $permissions);
	}

	/**
	* Adds/removes item from favorites
	*
	* @param kEvent $event
	*/
	function OnFavoriteToggle($event)
	{
	$parent_prefix = $this->Application->getUnitOption($event->Prefix, 'ParentPrefix');

	/** @var kDBItem $parent_object */
	$parent_object = $this->Application->recallObject($parent_prefix);

	if (!$parent_object->isLoaded() \|\| !$this->Application->CheckPermission('FAVORITES', 0, $parent_object->GetDBField('ParentPath'))) {
	$event->status = kEvent::erPERM_FAIL;
	return ;
	}

	$user_id = $this->Application->RecallVar('user_id');
	$sql = 'SELECT FavoriteId
	FROM '.$this->Application->getUnitOption($event->Prefix, 'TableName').'
	WHERE (PortalUserId = '.$user_id.') AND (ResourceId = '.$parent_object->GetDBField('ResourceId').')';
	$favorite_id = $this->Conn->GetOne($sql);

	/** @var kDBItem $object */
	$object = $event->getObject(Array('skip_autoload' => true));

	if ($favorite_id) {
	$object->Delete($favorite_id);
	}
	else {
	$object->Create();
	}

	$event->SetRedirectParam('pass', 'm,'.$parent_prefix);
	}

	/**
	* Prepares Favorite record fields
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnBeforeItemCreate(kEvent $event)
	{
	parent::OnBeforeItemCreate($event);

	/** @var kDBItem $object */
	$object = $event->getObject();

	$user_id = $this->Application->RecallVar('user_id');
	$object->SetDBField('PortalUserId', $user_id);

	$parent_prefix = $this->Application->getUnitOption($event->Prefix, 'ParentPrefix');

	/** @var kDBItem $parent_object */
	$parent_object = $this->Application->recallObject($parent_prefix);

	$object->SetDBField('ResourceId', $parent_object->GetDBField('ResourceId'));
	$object->SetDBField('ItemTypeId', $this->Application->getUnitOption($parent_prefix, 'ItemType'));
	}

	/**
	* [HOOK] Deletes favorite record to item, that is beeing deleted
	*
	* @param kEvent $event
	*/
	function OnDeleteFavoriteItem($event)
	{
	$main_object = $event->MasterEvent->getObject();

	$sql = 'DELETE FROM '.$this->Application->getUnitOption($event->Prefix, 'TableName').'
	WHERE ResourceId = '.$main_object->GetDBField('ResourceId');
	$this->Conn->Query($sql);
	}

	}

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