<?php

$application =& kApplication::Instance();
$application->Factory->includeClassFile('kDBEventHandler');

class kCatDBEventHandler extends kDBEventHandler {

	/**
	 * Allows to override standart permission mapping
	 *
	 */
	function mapPermissions()
	{
		parent::mapPermissions();
		$permissions = Array(
								'OnExport'					=>	Array('self' => 'view|advanced:export'),
								'OnExportBegin'				=>	Array('self' => 'view|advanced:export'),
								'OnSaveSettings'			=>	Array('self' => 'add|edit|advanced:import'),
								'OnBeforeDeleteOriginal'	=>	Array('self' => 'edit|advanced:approve'),

								'OnCancelAction' => Array('self' => true),
						);

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

	/**
	 * Load item if id is available
	 *
	 * @param kEvent $event
	 */
	function LoadItem(&$event)
	{
		$object =& $event->getObject();
		$id = $this->getPassedID($event);
		if ($object->Load($id)) {
			$actions =& $this->Application->recallObject('kActions');
			$actions->Set($event->Prefix_Special.'_id', $object->GetID() );

			$use_pending_editing = $this->Application->getUnitOption($event->Prefix, 'UsePendingEditing');
			if ($use_pending_editing && $event->Special != 'original') {
				$this->Application->SetVar($event->Prefix.'.original_id', $object->GetDBField('OrgId'));
			}
		}
		else {
			$object->setID($id);
		}
	}

	/**
	 * Checks permissions of user
	 *
	 * @param kEvent $event
	 */
	function CheckPermission(&$event)
	{
		if (!$this->Application->IsAdmin()) {
			if ($event->Name == 'OnSetSortingDirect') {
				// allow sorting on front event without view permission
				return true;
			}
		}

		if ($event->Name == 'OnExport') {
			// save category_id before doing export
			$this->Application->LinkVar('m_cat_id');
		}

		if ($event->Name == 'OnNew' && preg_match('/(.*)\/import$/', $this->Application->GetVar('t'), $rets)) {
			// redirect to item import template, where permission (import) category will be chosen)
			$root_category = $this->Application->findModule('Path', $rets[1].'/', 'RootCat');
			$this->Application->StoreVar('m_cat_id', $root_category);
		}

		$check_events = Array ('OnEdit', 'OnSave', 'OnMassDelete');
		if (in_array($event->Name, $check_events)) {
			// check each id from selected individually and only if all are allowed proceed next
			if ($event->Name == 'OnSave') {
				$selected_ids = implode(',', $this->getSelectedIDs($event, true));
				if (!$selected_ids) {
					$selected_ids = 0; // when saving newly created item (OnPreCreate -> OnPreSave -> OnSave)
				}
			}
			else {
				$selected_ids = implode(',', $this->StoreSelectedIDs($event));
			}

			$perm_value = true;
			if (strlen($selected_ids)) {
				$perm_helper =& $this->Application->recallObject('PermissionsHelper');
				/* @var $perm_helper kPermissionsHelper */

				$items = $perm_helper->GetCategoryItemData($event->Prefix, $selected_ids);
				$check_method = ($event->Name == 'OnMassDelete') ? 'DeleteCheckPermission' : 'ModifyCheckPermission';
				foreach ($items as $item_id => $item_data) {
					if ($perm_helper->$check_method($item_data['CreatedById'], $item_data['CategoryId'], $event->Prefix) == 0) {
						// one of items selected has no permission
						$perm_value = false;
						break;
					}
				}

				if (!$perm_value) {
					$event->status = erPERM_FAIL;
				}
			}
			else {
				trigger_error('IDs not passed to '.$event->getPrefixSpecial().':CheckPermission', E_USER_WARNING);
			}

			return $perm_value;
		}

		return parent::CheckPermission($event);
	}

	/**
	 * Add selected items to clipboard with mode = COPY (CLONE)
	 *
	 * @param kEvent $event
	 */
	function OnCopy(&$event)
	{
		$this->Application->RemoveVar('clipboard');
		$clipboard_helper =& $this->Application->recallObject('ClipboardHelper');
		$clipboard_helper->setClipboard($event, 'copy', $this->StoreSelectedIDs($event));
	}

	/**
	 * Add selected items to clipboard with mode = CUT
	 *
	 * @param kEvent $event
	 */
	function OnCut(&$event)
	{
		$this->Application->RemoveVar('clipboard');
		$clipboard_helper =& $this->Application->recallObject('ClipboardHelper');
		$clipboard_helper->setClipboard($event, 'cut', $this->StoreSelectedIDs($event));
	}

	/**
	 * Performs category item paste
	 *
	 * @param kEvent $event
	 */
	function OnPaste(&$event)
	{
		if ($this->Application->CheckPermission('SYSTEM_ACCESS.READONLY', 1)) {
			return;
		}

		$clipboard_data = $event->getEventParam('clipboard_data');

		if (!$clipboard_data['cut'] && !$clipboard_data['copy']) {
			return false;
		}

		if ($clipboard_data['copy']) {
			$temp =& $this->Application->recallObject($event->getPrefixSpecial().'_TempHandler', 'kTempTablesHandler');
			$this->Application->SetVar('ResetCatBeforeClone', 1);
			$temp->CloneItems($event->Prefix, $event->Special, $clipboard_data['copy']);
		}

		if ($clipboard_data['cut']) {
			$object =& $this->Application->recallObject($event->getPrefixSpecial().'.item', $event->Prefix, Array('skip_autoload' => true));

			foreach ($clipboard_data['cut'] as $id) {
				$object->Load($id);
				$object->MoveToCat();
			}
		}
	}

	/**
	 * Return type clauses for list bulding on front
	 *
	 * @param kEvent $event
	 * @return Array
	 */
	function getTypeClauses(&$event)
	{
		$types = $event->getEventParam('types');
		$types = $types ? explode(',', $types) : Array ();

		$except_types = $event->getEventParam('except');
		$except_types = $except_types ? explode(',', $except_types) : Array ();

		$type_clauses = Array();

		$user_id = $this->Application->RecallVar('user_id');
		$type_clauses['my_items']['include'] = '%1$s.CreatedById = '.$user_id;
		$type_clauses['my_items']['except'] = '%1$s.CreatedById <> '.$user_id;
		$type_clauses['my_items']['having_filter'] = false;

		$type_clauses['pick']['include'] = '%1$s.EditorsPick = 1 AND '.TABLE_PREFIX.'CategoryItems.PrimaryCat = 1';
		$type_clauses['pick']['except'] = '%1$s.EditorsPick! = 1 AND '.TABLE_PREFIX.'CategoryItems.PrimaryCat = 1';
		$type_clauses['pick']['having_filter'] = false;

		$type_clauses['hot']['include'] = '`IsHot` = 1 AND PrimaryCat = 1';
		$type_clauses['hot']['except'] = '`IsHot`! = 1 AND PrimaryCat = 1';
		$type_clauses['hot']['having_filter'] = true;

		$type_clauses['pop']['include'] = '`IsPop` = 1 AND PrimaryCat = 1';
		$type_clauses['pop']['except'] = '`IsPop`! = 1 AND PrimaryCat = 1';
		$type_clauses['pop']['having_filter'] = true;

		$type_clauses['new']['include'] = '`IsNew` = 1 AND PrimaryCat = 1';
		$type_clauses['new']['except'] = '`IsNew`! = 1 AND PrimaryCat = 1';
		$type_clauses['new']['having_filter'] = true;

		$type_clauses['displayed']['include'] = '';
		$displayed = $this->Application->GetVar($event->Prefix.'_displayed_ids');
		if ($displayed) {
			$id_field = $this->Application->getUnitOption($event->Prefix, 'IDField');
			$type_clauses['displayed']['except'] = '%1$s.'.$id_field.' NOT IN ('.$displayed.')';
		}
		else {
			$type_clauses['displayed']['except'] = '';
		}
		$type_clauses['displayed']['having_filter'] = false;

		if (in_array('search', $types) || in_array('search', $except_types)) {
			$event_mapping = Array(
									'simple'		=>	'OnSimpleSearch',
									'subsearch'		=>	'OnSubSearch',
									'advanced'		=>	'OnAdvancedSearch');
			if($this->Application->GetVar('INPORTAL_ON') && $this->Application->GetVar('Action') == 'm_simple_subsearch')
			{
				$type = 'subsearch';
			}
			else
			{
				$type = $this->Application->GetVar('search_type') ? $this->Application->GetVar('search_type') : 'simple';
			}

			if($keywords = $event->getEventParam('keyword_string')) // processing keyword_string param of ListProducts tag
			{
				$this->Application->SetVar('keywords', $keywords);
				$type = 'simple';
			}
			$search_event = $event_mapping[$type];
			$this->$search_event($event);
			$search_table = TABLE_PREFIX.'ses_'.$this->Application->GetSID().'_'.TABLE_PREFIX.'Search';
			$sql = 'SHOW TABLES LIKE "'.$search_table.'"';
			if ( $this->Conn->Query($sql) ) {
				$search_res_ids = $this->Conn->GetCol('SELECT ResourceId FROM '.$search_table);
			}

			if ($search_res_ids) {
				$type_clauses['search']['include'] = '%1$s.ResourceId IN ('.implode(',', $search_res_ids).') AND PrimaryCat = 1';
				$type_clauses['search']['except'] = '%1$s.ResourceId NOT IN ('.implode(',', $search_res_ids).') AND PrimaryCat = 1';
			}
			else {
				$type_clauses['search']['include'] = '0';
				$type_clauses['search']['except'] = '1';
			}
			$type_clauses['search']['having_filter'] = false;
		}

		if (in_array('related', $types) || in_array('related', $except_types)) {

			$related_to = $event->getEventParam('related_to');
			if (!$related_to) {
				$related_prefix = $event->Prefix;
			}
			else {
				$sql = 'SELECT Prefix
						FROM '.TABLE_PREFIX.'ItemTypes
						WHERE ItemName = '.$this->Conn->qstr($related_to);
				$related_prefix = $this->Conn->GetOne($sql);
			}

			$rel_table = $this->Application->getUnitOption('rel', 'TableName');
			$item_type = $this->Application->getUnitOption($event->Prefix, 'ItemType');

			$p_item =& $this->Application->recallObject($related_prefix.'.current', null, Array('skip_autoload' => true));
			$p_item->Load( $this->Application->GetVar($related_prefix.'_id') );

			$p_resource_id = $p_item->GetDBField('ResourceId');

			$sql = 'SELECT SourceId, TargetId FROM '.$rel_table.'
					WHERE
						(Enabled = 1)
						AND (
								(Type = 0 AND SourceId = '.$p_resource_id.' AND TargetType = '.$item_type.')
								OR
								(Type = 1
									AND (
											(SourceId = '.$p_resource_id.' AND TargetType = '.$item_type.')
											OR
											(TargetId = '.$p_resource_id.' AND SourceType = '.$item_type.')
										)
								)
						)';

			$related_ids_array = $this->Conn->Query($sql);
			$related_ids = Array();

			foreach ($related_ids_array as $key => $record) {
				$related_ids[] = $record[ $record['SourceId'] == $p_resource_id ? 'TargetId' : 'SourceId' ];
			}

			if (count($related_ids) > 0) {
				$type_clauses['related']['include'] = '%1$s.ResourceId IN ('.implode(',', $related_ids).') AND PrimaryCat = 1';
				$type_clauses['related']['except'] = '%1$s.ResourceId NOT IN ('.implode(',', $related_ids).') AND PrimaryCat = 1';
			}
			else {
				$type_clauses['related']['include'] = '0';
				$type_clauses['related']['except'] = '1';
			}
			$type_clauses['related']['having_filter'] = false;
		}

		if (in_array('favorites', $types) || in_array('favorites', $except_types)) {
			$sql = 'SELECT ResourceId
					FROM '.$this->Application->getUnitOption('fav', 'TableName').'
					WHERE PortalUserId = '.$this->Application->RecallVar('user_id');
			$favorite_ids = $this->Conn->GetCol($sql);
			if ($favorite_ids) {
				$type_clauses['favorites']['include'] = '%1$s.ResourceId IN ('.implode(',', $favorite_ids).') AND PrimaryCat = 1';
				$type_clauses['favorites']['except'] = '%1$s.ResourceId NOT IN ('.implode(',', $favorite_ids).') AND PrimaryCat = 1';
			}
			else {
				$type_clauses['favorites']['include'] = 0;
				$type_clauses['favorites']['except'] = 1;
			}
			$type_clauses['favorites']['having_filter'] = false;
		}

		return $type_clauses;
	}

	/**
	 * Apply filters to list
	 *
	 * @param kEvent $event
	 */
	function SetCustomQuery(&$event)
	{
		parent::SetCustomQuery($event);

		$object =& $event->getObject();

		// add category filter if needed
		if ($event->Special != 'showall') {
			if ($event->getEventParam('parent_cat_id') !== false) {
				$parent_cat_id = $event->getEventParam('parent_cat_id');
			}
			else {
				$parent_cat_id = $this->Application->GetVar('c_id');
				if (!$parent_cat_id) {
					$parent_cat_id = $this->Application->GetVar('m_cat_id');
				}
				if (!$parent_cat_id) {
					$parent_cat_id = 0;
				}
			}

			if ((string) $parent_cat_id != 'any') {
				if ($event->getEventParam('recursive')) {
					$current_path = $this->Conn->GetOne('SELECT ParentPath FROM '.TABLE_PREFIX.'Category WHERE CategoryId='.$parent_cat_id);
					$subcats = $this->Conn->GetCol('SELECT CategoryId FROM '.TABLE_PREFIX.'Category WHERE ParentPath LIKE "'.$current_path.'%" ');
					$object->addFilter('category_filter', TABLE_PREFIX.'CategoryItems.CategoryId IN ('.implode(', ', $subcats).')');
					$object->addFilter('primary_filter', 'PrimaryCat = 1');
				}
				else {
					$object->addFilter('category_filter', TABLE_PREFIX.'CategoryItems.CategoryId = '.$parent_cat_id );
				}
			}
		}
		else {
			$object->addFilter('primary_filter', 'PrimaryCat = 1');
		}

		// add permission filter
		if ($this->Application->RecallVar('user_id') == -1) {
			// for "root" CATEGORY.VIEW permission is checked for items lists too
			$view_perm = 1;
		}
		else {
			// for any real user itemlist view permission is checked instead of CATEGORY.VIEW
			$sql = 'SELECT PermissionConfigId
					FROM '.TABLE_PREFIX.'PermissionConfig
					WHERE PermissionName = "'.$this->Application->getUnitOption($event->Prefix, 'PermItemPrefix').'.VIEW"';
			$view_perm = $this->Conn->GetOne($sql);

			$groups = explode( ',', $this->Application->RecallVar('UserGroups') );
			foreach($groups as $group)
			{
				$view_filters[] = 'FIND_IN_SET('.$group.', perm.acl)';
			}
			$view_filter = implode(' OR ', $view_filters);
			$object->addFilter('perm_filter2', $view_filter);
		}

		$object->addFilter('perm_filter', 'perm.PermId = '.$view_perm);


		$types = $event->getEventParam('types');
		$this->applyItemStatusFilter($object, $types);

		$except_types = $event->getEventParam('except');
		$type_clauses = $this->getTypeClauses($event);

		// convert prepared type clauses into list filters
		$includes_or_filter =& $this->Application->makeClass('kMultipleFilter');
		$includes_or_filter->setType(FLT_TYPE_OR);

		$excepts_and_filter =& $this->Application->makeClass('kMultipleFilter');
		$excepts_and_filter->setType(FLT_TYPE_AND);

		$includes_or_filter_h =& $this->Application->makeClass('kMultipleFilter');
		$includes_or_filter_h->setType(FLT_TYPE_OR);

		$excepts_and_filter_h =& $this->Application->makeClass('kMultipleFilter');
		$excepts_and_filter_h->setType(FLT_TYPE_AND);

		if ($types) {
			$types_array = explode(',', $types);
			for ($i = 0; $i < sizeof($types_array); $i++) {
				$type = trim($types_array[$i]);
				if (isset($type_clauses[$type])) {
					if ($type_clauses[$type]['having_filter']) {
						$includes_or_filter_h->removeFilter('filter_'.$type);
						$includes_or_filter_h->addFilter('filter_'.$type, $type_clauses[$type]['include']);
					}else {
						$includes_or_filter->removeFilter('filter_'.$type);
						$includes_or_filter->addFilter('filter_'.$type, $type_clauses[$type]['include']);
					}
				}
			}
		}

		if ($except_types) {
			$except_types_array = explode(',', $except_types);
			for ($i = 0; $i < sizeof($except_types_array); $i++) {
				$type = trim($except_types_array[$i]);
				if (isset($type_clauses[$type])) {
					if ($type_clauses[$type]['having_filter']) {
						$excepts_and_filter_h->removeFilter('filter_'.$type);
						$excepts_and_filter_h->addFilter('filter_'.$type, $type_clauses[$type]['except']);
					}else {
						$excepts_and_filter->removeFilter('filter_'.$type);
						$excepts_and_filter->addFilter('filter_'.$type, $type_clauses[$type]['except']);
					}
				}
			}
		}

		/*if ( !$this->Application->IsAdmin() ) {
			$object->addFilter('expire_filter', '%1$s.Expire IS NULL OR %1$s.Expire > UNIX_TIMESTAMP()');
		}*/

		/*$list_type = $event->getEventParam('ListType');
		switch($list_type)
		{
			case 'favorites':
				$fav_table = $this->Application->getUnitOption('fav','TableName');
				$user_id =& $this->Application->RecallVar('user_id');

				$sql = 'SELECT DISTINCT f.ResourceId
						FROM '.$fav_table.' f
						LEFT JOIN '.$object->TableName.' p ON p.ResourceId = f.ResourceId
						WHERE f.PortalUserId = '.$user_id;
				$ids = $this->Conn->GetCol($sql);
				if(!$ids) $ids = Array(-1);
				$object->addFilter('category_filter', TABLE_PREFIX.'CategoryItems.PrimaryCat = 1');
				$object->addFilter('favorites_filter', '%1$s.`ResourceId` IN ('.implode(',',$ids).')');
				break;
			case 'search':
				$search_results_table = TABLE_PREFIX.'ses_'.$this->Application->GetSID().'_'.TABLE_PREFIX.'Search';
				$sql = '	SELECT DISTINCT ResourceId
							FROM '.$search_results_table.'
							WHERE ItemType=11';
				$ids = $this->Conn->GetCol($sql);
				if(!$ids) $ids = Array(-1);
				$object->addFilter('search_filter', '%1$s.`ResourceId` IN ('.implode(',',$ids).')');
				break;
		}		*/

		$object->addFilter('includes_filter', $includes_or_filter);
		$object->addFilter('excepts_filter', $excepts_and_filter);

		$object->addFilter('includes_filter_h', $includes_or_filter_h, HAVING_FILTER);
		$object->addFilter('excepts_filter_h', $excepts_and_filter_h, HAVING_FILTER);
	}

	/**
	 * Adds filter that filters out items with non-required statuses
	 *
	 * @param kDBList $object
	 * @param string $types
	 */
	function applyItemStatusFilter(&$object, $types)
	{
		// Link1 (before modifications) [Status = 1, OrgId = NULL], Link2 (after modifications) [Status = -2, OrgId = Link1_ID]
		$pending_editing = $this->Application->getUnitOption($object->Prefix, 'UsePendingEditing');

		if ( !$this->Application->IsAdmin() ) {
			$types = explode(',', $types);
			if (in_array('my_items', $types)) {
				$allow_statuses = Array (STATUS_ACTIVE, STATUS_PENDING, STATUS_PENDING_EDITING);
				$object->addFilter('status_filter', '%1$s.Status IN ('.implode(',', $allow_statuses).')');

				if ($pending_editing) {
					$user_id = $this->Application->RecallVar('user_id');
					$this->applyPendingEditingFilter($object, $user_id);
				}
			}
			else {
				$object->addFilter('status_filter', '%1$s.Status = 1');
				if ($pending_editing) {
					// if category item uses pending editing abilities, then in no cases show pending copies on front
					$object->addFilter('original_filter', '%1$s.OrgId = 0 OR %1$s.OrgId IS NULL');
				}
			}
		}
		else {
			if ($pending_editing) {
				$this->applyPendingEditingFilter($object);
			}
		}
	}

	/**
	 * Adds filter, that removes live items if they have pending editing copies
	 *
	 * @param kDBList $object
	 * @param int $user_id
	 */
	function applyPendingEditingFilter(&$object, $user_id = null)
	{
		$sql = 'SELECT OrgId
				FROM '.$object->TableName.'
				WHERE Status = '.STATUS_PENDING_EDITING.' AND OrgId IS NOT NULL';

		if (isset($user_id)) {
			$sql .= ' AND CreatedById = '.$user_id;
		}

		$pending_ids = $this->Conn->GetCol($sql);
		if ($pending_ids) {
			$object->addFilter('no_original_filter', '%1$s.'.$object->IDField.' NOT IN ('.implode(',', $pending_ids).')');
		}
	}

	/**
	 * Adds calculates fields for item statuses
	 *
	 * @param kCatDBItem $object
	 * @param kEvent $event
	 */
	function prepareObject(&$object, &$event)
	{
		$this->prepareItemStatuses($event);

		$object->addCalculatedField('CachedNavbar', 'l'.$this->Application->GetVar('m_lang').'_CachedNavbar');

		if ($event->Special == 'export' || $event->Special == 'import')
		{
			$export_helper =& $this->Application->recallObject('CatItemExportHelper');
			$export_helper->prepareExportColumns($event);
		}
	}

	/**
	 * Creates calculated fields for all item statuses based on config settings
	 *
	 * @param kEvent $event
	 */
	function prepareItemStatuses(&$event)
	{
		$object =& $event->getObject( Array('skip_autoload' => true) );

		$property_map = $this->Application->getUnitOption($event->Prefix, 'ItemPropertyMappings');
		if (!$property_map) {
			return ;
		}

		// new items
		$object->addCalculatedField('IsNew', '	IF(%1$s.NewItem = 2,
													IF(%1$s.CreatedOn >= (UNIX_TIMESTAMP() - '.
														$this->Application->ConfigValue($property_map['NewDays']).
														'*3600*24), 1, 0),
													%1$s.NewItem
												)');

		// hot items (cache updated every hour)
		$sql = 'SELECT Data
				FROM '.TABLE_PREFIX.'Cache
				WHERE (VarName = "'.$property_map['HotLimit'].'") AND (Cached >'.(adodb_mktime() - 3600).')';
		$hot_limit = $this->Conn->GetOne($sql);
		if ($hot_limit === false) {
			$hot_limit = $this->CalculateHotLimit($event);
		}
		$object->addCalculatedField('IsHot', '	IF(%1$s.HotItem = 2,
													IF(%1$s.'.$property_map['ClickField'].' >= '.$hot_limit.', 1, 0),
													%1$s.HotItem
												)');

		// popular items
		$object->addCalculatedField('IsPop', '	IF(%1$s.PopItem = 2,
													IF(%1$s.CachedVotesQty >= '.
														$this->Application->ConfigValue($property_map['MinPopVotes']).
														' AND %1$s.CachedRating >= '.
														$this->Application->ConfigValue($property_map['MinPopRating']).
														', 1, 0),
													%1$s.PopItem)');

	}

	function CalculateHotLimit(&$event)
	{
		$property_map = $this->Application->getUnitOption($event->Prefix, 'ItemPropertyMappings');
		if (!$property_map) {
			return;
		}
		$click_field = $property_map['ClickField'];

		$last_hot = $this->Application->ConfigValue($property_map['MaxHotNumber']) - 1;
		$sql = 'SELECT '.$click_field.' FROM '.$this->Application->getUnitOption($event->Prefix, 'TableName').'
				ORDER BY '.$click_field.' DESC
				LIMIT '.$last_hot.', 1';
		$res = $this->Conn->GetCol($sql);
		$hot_limit = (double)array_shift($res);
		$this->Conn->Query('REPLACE INTO '.TABLE_PREFIX.'Cache (VarName, Data, Cached) VALUES ("'.$property_map['HotLimit'].'", "'.$hot_limit.'", '.adodb_mktime().')');
		return $hot_limit;

		return 0;
	}

	/**
	 * Enter description here...
	 *
	 * @param kEvent $event
	 */
	function OnBeforeItemUpdate(&$event)
	{
		$property_map = $this->Application->getUnitOption($event->Prefix, 'ItemPropertyMappings');
		if (!$property_map) {
			return;
		}
		$click_field = $property_map['ClickField'];

		$object =& $event->getObject();
		if( $this->Application->IsAdmin() && ($this->Application->GetVar($click_field.'_original') !== false) &&
			floor($this->Application->GetVar($click_field.'_original')) != $object->GetDBField($click_field) )
		{
			$sql = 'SELECT MAX('.$click_field.') FROM '.$this->Application->getUnitOption($event->Prefix, 'TableName').'
					WHERE FLOOR('.$click_field.') = '.$object->GetDBField($click_field);
			$hits = ( $res = $this->Conn->GetOne($sql) ) ? $res + 0.000001 : $object->GetDBField($click_field);
			$object->SetDBField($click_field, $hits);
		}
	}

	/**
	 * Load price from temp table if product mode is temp table
	 *
	 * @param kEvent $event
	 */
	function OnAfterItemLoad(&$event)
	{
		$special = substr($event->Special, -6);
		$object =& $event->getObject();
		if ($special == 'import' || $special == 'export') {
			$image_data = $object->getPrimaryImageData();

			if ($image_data) {
				$thumbnail_image = $image_data[$image_data['LocalThumb'] ? 'ThumbPath' : 'ThumbUrl'];
				if ($image_data['SameImages']) {
					$full_image = '';
				}
				else {
					$full_image = $image_data[$image_data['LocalImage'] ? 'LocalPath' : 'Url'];
				}
				$object->SetDBField('ThumbnailImage', $thumbnail_image);
				$object->SetDBField('FullImage', $full_image);
				$object->SetDBField('ImageAlt', $image_data['AltName']);
			}
		}

		//substituiting pending status value for pending editing
		if ($object->HasField('OrgId') && $object->GetDBField('OrgId') > 0 && $object->GetDBField('Status') == -2) {
			$options = $object->Fields['Status']['options'];
			foreach ($options as $key => $val) {
				if ($key == 2) $key = -2;
				$new_options[$key] = $val;
			}
			$object->Fields['Status']['options'] = $new_options;
		}
		/*elseif (!$this->Application->IsAdmin() && $object->GetDBField('Status') != 1 && $object->Prefix != 'cms') {
			header('HTTP/1.0 404 Not Found');
			while (ob_get_level()) { ob_end_clean();	}
			$this->Application->HTML = $this->Application->ParseBlock(array('name'=>$this->Application->ConfigValue('ErrorTemplate')));
			$this->Application->Done();
			exit();
		}*/

	}

	function OnAfterItemUpdate(&$event)
	{
		$this->CalculateHotLimit($event);

		if ( substr($event->Special, -6) == 'import') {
			$this->setCustomExportColumns($event);
		}
	}

	/**
	 * sets values for import process
	 *
	 * @param kEvent $event
	 */
	function OnAfterItemCreate(&$event)
	{
		if ( substr($event->Special, -6) == 'import') {
			$this->setCustomExportColumns($event);
		}
	}

	/**
	 * Make record to search log
	 *
	 * @param string $keywords
	 * @param int $search_type 0 - simple search, 1 - advanced search
	 */
	function saveToSearchLog($keywords, $search_type = 0)
	{
		$sql = 'UPDATE '.TABLE_PREFIX.'SearchLog
				SET Indices = Indices + 1
				WHERE Keyword = '.$this->Conn->qstr($keywords).' AND SearchType = '.$search_type; // 0 - simple search, 1 - advanced search
        $this->Conn->Query($sql);
        if ($this->Conn->getAffectedRows() == 0) {
            $fields_hash = Array('Keyword' => $keywords, 'Indices' => 1, 'SearchType' => $search_type);
        	$this->Conn->doInsert($fields_hash, TABLE_PREFIX.'SearchLog');
        }
	}

	/**
	 * Makes simple search for products
	 * based on keywords string
	 *
	 * @param kEvent $event
	 * @todo Change all hardcoded Products table & In-Commerce module usage to dynamic usage from item config !!!
	 */
	function OnSimpleSearch(&$event)
	{
		if($this->Application->GetVar('INPORTAL_ON') && !($this->Application->GetVar('Action') == 'm_simple_search'))
		{
			return;
		}

		$event->redirect = false;
		$search_table = TABLE_PREFIX.'ses_'.$this->Application->GetSID().'_'.TABLE_PREFIX.'Search';

		$keywords = unhtmlentities( trim($this->Application->GetVar('keywords')) );

		$query_object =& $this->Application->recallObject('HTTPQuery');
		$sql = 'SHOW TABLES LIKE "'.$search_table.'"';

		if(!isset($query_object->Get['keywords']) &&
			!isset($query_object->Post['keywords']) &&
			$this->Conn->Query($sql))
		{
			return; // used when navigating by pages or changing sorting in search results
		}
		if(!$keywords || strlen($keywords) < $this->Application->ConfigValue('Search_MinKeyword_Length'))
		{
			$this->Conn->Query('DROP TABLE IF EXISTS '.$search_table);
			$this->Application->SetVar('keywords_too_short', 1);
			return; // if no or too short keyword entered, doing nothing
		}

		$this->Application->StoreVar('keywords', $keywords);
		if (!$this->Application->GetVar('INPORTAL_ON')) {
			// don't save search log, because in-portal already saved it
			$this->saveToSearchLog($keywords, 0); // 0 - simple search, 1 - advanced search
		}


		$keywords = strtr($keywords, Array('%' => '\\%', '_' => '\\_'));

		$event->setPseudoClass('_List');
		$object =& $event->getObject();
		$this->Application->SetVar($event->getPrefixSpecial().'_Page', 1);
		$lang = $this->Application->GetVar('m_lang');
		$items_table = $this->Application->getUnitOption($event->Prefix, 'TableName');
		$module_name = $this->Application->findModule('Var', $event->Prefix, 'Name');

		$sql = '	SELECT * FROM '.$this->Application->getUnitOption('confs', 'TableName').'
					WHERE ModuleName="'.$module_name.'"
					AND SimpleSearch=1';
		$search_config = $this->Conn->Query($sql, 'FieldName');
		$field_list = array_keys($search_config);

		$join_clauses = Array();

		// field processing
		$weight_sum = 0;

		$alias_counter = 0;

		$custom_fields = $this->Application->getUnitOption($event->Prefix, 'CustomFields');
		if ($custom_fields) {
			$custom_table = $this->Application->getUnitOption($event->Prefix.'-cdata', 'TableName');
			$join_clauses[] = '	LEFT JOIN '.$custom_table.' custom_data ON '.$items_table.'.ResourceId = custom_data.ResourceId';
		}

		// what field in search config becomes what field in sql (key - new field, value - old field (from searchconfig table))
		$search_config_map = Array();

		foreach ($field_list as $key => $field) {
			$options = $object->getFieldOptions($field);
			$local_table = TABLE_PREFIX.$search_config[$field]['TableName'];
			$weight_sum += $search_config[$field]['Priority']; // counting weight sum; used when making relevance clause

			// processing multilingual fields
			if (getArrayValue($options, 'formatter') == 'kMultiLanguage') {
				$field_list[$key.'_primary'] = 'l'.$this->Application->GetDefaultLanguageId().'_'.$field;
				$field_list[$key] = 'l'.$lang.'_'.$field;

				if(!isset($search_config[$field]['ForeignField']))
				{
					$field_list[$key.'_primary'] = $local_table.'.'.$field_list[$key.'_primary'];
					$search_config_map[ $field_list[$key.'_primary'] ] = $field;
				}
			}

			// processing fields from other tables
			if($foreign_field = $search_config[$field]['ForeignField'])
			{
				$exploded = explode(':', $foreign_field, 2);
				if($exploded[0] == 'CALC')
				{
					unset($field_list[$key]);
					continue;	// ignoring having type clauses in simple search
					/*$user_groups = 	$this->Application->RecallVar('UserGroups');
					$having_list[$key] = str_replace('{PREFIX}', TABLE_PREFIX, $exploded[1]);
					$join_clause = str_replace('{PREFIX}', TABLE_PREFIX, $search_config[$field]['JoinClause']);
					$join_clause = str_replace('{USER_GROUPS}', $user_groups, $join_clause);
					$join_clause = ' LEFT JOIN '.$join_clause;
					$join_clauses[] = $join_clause;*/
				}
				else
				{
					$multi_lingual = false;
					if ($exploded[0] == 'MULTI')
					{
						$multi_lingual = true;
						$foreign_field = $exploded[1];
					}
					$exploded = explode('.', $foreign_field);	// format: table.field_name
					$foreign_table = TABLE_PREFIX.$exploded[0];

					$alias_counter++;
					$alias = 't'.$alias_counter;

					if ($multi_lingual) {
						$field_list[$key] = $alias.'.'.'l'.$lang.'_'.$exploded[1];
						$field_list[$key.'_primary'] = 'l'.$this->Application->GetDefaultLanguageId().'_'.$field;
						$search_config_map[ $field_list[$key] ] = $field;
						$search_config_map[ $field_list[$key.'_primary'] ] = $field;
					}
					else {
						$field_list[$key] = $alias.'.'.$exploded[1];
						$search_config_map[ $field_list[$key] ] = $field;
					}

					$join_clause = str_replace('{ForeignTable}', $alias, $search_config[$field]['JoinClause']);
					$join_clause = str_replace('{LocalTable}', $items_table, $join_clause);

					$join_clauses[] = '	LEFT JOIN '.$foreign_table.' '.$alias.'
										ON '.$join_clause;
				}
			}
			else {
				// processing fields from local table
				if ($search_config[$field]['CustomFieldId']) {
					$local_table = 'custom_data';
					$field_list[$key] = 'l'.$lang.'_cust_'.array_search($field_list[$key], $custom_fields);
				}
				$field_list[$key] = $local_table.'.'.$field_list[$key];
				$search_config_map[ $field_list[$key] ] = $field;
			}
		}

		// keyword string processing
		$search_helper =& $this->Application->recallObject('SearchHelper');
		$where_clause = $search_helper->buildWhereClause($keywords, $field_list);

		$where_clause = $where_clause.' AND '.$items_table.'.Status=1';

		if($this->Application->GetVar('Action') == 'm_simple_subsearch') // subsearch, In-portal
		{
			if( $event->getEventParam('ResultIds') )
			{
				$where_clause .= ' AND '.$items_table.'.ResourceId IN ('.implode(',', $event->specificParams['ResultIds']).')';
			}
		}
		if( $event->MasterEvent && $event->MasterEvent->Name == 'OnListBuild' ) // subsearch, k4
		{
			if( $event->MasterEvent->getEventParam('ResultIds') )
			{
				$where_clause .= ' AND '.$items_table.'.ResourceId IN ('.implode(',', $event->MasterEvent->getEventParam('ResultIds')).')';
			}
		}

		// making relevance clause
		$positive_words = $search_helper->getPositiveKeywords($keywords);
		$this->Application->StoreVar('highlight_keywords', serialize($positive_words));
		$revelance_parts = Array();
		reset($search_config);
		foreach ($field_list as $field) {
			$config_elem = $search_config[ $search_config_map[$field] ];
			$weight = $config_elem['Priority'];
			$revelance_parts[] = 'IF('.$field.' LIKE "%'.implode(' ', $positive_words).'%", '.$weight_sum.', 0)';
			foreach ($positive_words as $keyword) {
				$revelance_parts[] = 'IF('.$field.' LIKE "%'.$keyword.'%", '.$weight.', 0)';
			}
		}
		$conf_postfix = $this->Application->getUnitOption($event->Prefix, 'SearchConfigPostfix');
		$rel_keywords	= $this->Application->ConfigValue('SearchRel_Keyword_'.$conf_postfix)	/ 100;
		$rel_pop		= $this->Application->ConfigValue('SearchRel_Pop_'.$conf_postfix)		/ 100;
		$rel_rating		= $this->Application->ConfigValue('SearchRel_Rating_'.$conf_postfix)	/ 100;
		$relevance_clause = '('.implode(' + ', $revelance_parts).') / '.$weight_sum.' * '.$rel_keywords;
		if ($rel_pop && isset($object->Fields['Hits'])) {
			$relevance_clause .= ' + (Hits + 1) / (MAX(Hits) + 1) * '.$rel_pop;
		}
		if ($rel_rating && isset($object->Fields['CachedRating'])) {
			$relevance_clause .= ' + (CachedRating + 1) / (MAX(CachedRating) + 1) * '.$rel_rating;
		}

		// building final search query
		if (!$this->Application->GetVar('do_not_drop_search_table') && !$this->Application->GetVar('INPORTAL_ON')) {
			$this->Conn->Query('DROP TABLE IF EXISTS '.$search_table); // erase old search table if clean k4 event
			$this->Application->SetVar('do_not_drop_search_table', true);
		}


		$search_table_exists = $this->Conn->Query('SHOW TABLES LIKE "'.$search_table.'"');
		if ($search_table_exists) {
			$select_intro = 'INSERT INTO '.$search_table.' (Relevance, ItemId, ResourceId, ItemType, EdPick) ';
		}
		else {
			$select_intro = 'CREATE TABLE '.$search_table.' AS ';
		}

		$edpick_clause = $this->Application->getUnitOption($event->Prefix.'.EditorsPick', 'Fields') ? $items_table.'.EditorsPick' : '0';


		$sql = $select_intro.' SELECT '.$relevance_clause.' AS Relevance,
							'.$items_table.'.'.$this->Application->getUnitOption($event->Prefix, 'IDField').' AS ItemId,
							'.$items_table.'.ResourceId,
							'.$this->Application->getUnitOption($event->Prefix, 'ItemType').' AS ItemType,
							 '.$edpick_clause.' AS EdPick
					FROM '.$object->TableName.'
					'.implode(' ', $join_clauses).'
					WHERE '.$where_clause.'
					GROUP BY '.$items_table.'.'.$this->Application->getUnitOption($event->Prefix, 'IDField');

		$res = $this->Conn->Query($sql);
	}

	/**
	 * Enter description here...
	 *
	 * @param kEvent $event
	 */
	function OnSubSearch(&$event)
	{
		$search_table = TABLE_PREFIX.'ses_'.$this->Application->GetSID().'_'.TABLE_PREFIX.'Search';
		$sql = 'SHOW TABLES LIKE "'.$search_table.'"';
		if($this->Conn->Query($sql))
		{
			$sql = 'SELECT DISTINCT ResourceId FROM '.$search_table;
			$ids = $this->Conn->GetCol($sql);
		}
		$event->setEventParam('ResultIds', $ids);
		$event->CallSubEvent('OnSimpleSearch');
	}

	/**
	 * Enter description here...
	 *
	 * @param kEvent $event
	 * @todo Change all hardcoded Products table & In-Commerce module usage to dynamic usage from item config !!!
	 */
	function OnAdvancedSearch(&$event)
	{
		$query_object =& $this->Application->recallObject('HTTPQuery');
		if(!isset($query_object->Post['andor']))
		{
			return; // used when navigating by pages or changing sorting in search results
		}

		$this->Application->RemoveVar('keywords');
		$this->Application->RemoveVar('Search_Keywords');

		$sql = '	SELECT * FROM '.$this->Application->getUnitOption('confs', 'TableName').'
					WHERE ModuleName="In-Commerce"
					AND AdvancedSearch=1';
		$search_config = $this->Conn->Query($sql);
		$lang = $this->Application->GetVar('m_lang');
		$object =& $event->getObject();
		$object->SetPage(1);
		$product_table = $this->Application->getUnitOption('p', 'TableName');

		$search_keywords = $this->Application->GetVar('value'); // will not be changed

		$keywords = $this->Application->GetVar('value'); // will be changed down there
		$verbs = $this->Application->GetVar('verb');
		$glues = $this->Application->GetVar('andor');

		$and_conditions = Array();
		$or_conditions = Array();
		$and_having_conditions = Array();
		$or_having_conditions = Array();
		$join_clauses = Array();
		$highlight_keywords = Array();
		$relevance_parts = Array();

		$condition_patterns = Array(	'any'			=> '%s LIKE %s',
										'contains'		=> '%s LIKE %s',
										'notcontains'	=> '(NOT (%1$s LIKE %2$s) OR %1$s IS NULL)',
										'is'			=> '%s = %s',
										'isnot'			=> '(%1$s != %2$s OR %1$s IS NULL)');

		$alias_counter = 0;

		$custom_fields = $this->Application->getUnitOption($event->Prefix, 'CustomFields');
		if ($custom_fields) {
			$custom_table = $this->Application->getUnitOption($event->Prefix.'-cdata', 'TableName');
			$join_clauses[] = '	LEFT JOIN '.$custom_table.' custom_data ON '.$product_table.'.ResourceId = custom_data.ResourceId';
		}

		$search_log = '';
		$weight_sum = 0;
		// processing fields and preparing conditions
		foreach($search_config as $record)
		{
			$field = $record['FieldName'];
			$join_clause = '';
			$condition_mode = 'WHERE';

			// field processing

			$options = $object->getFieldOptions($field);
			$local_table = TABLE_PREFIX.$record['TableName'];
			$weight_sum += $record['Priority']; // counting weight sum; used when making relevance clause

			// processing multilingual fields
			if (getArrayValue($options, 'formatter') == 'kMultiLanguage') {
				$field_name = 'l'.$lang.'_'.$field;
			}
			else {
				$field_name = $field;
			}

			// processing fields from other tables
			if ($foreign_field = $record['ForeignField']) {
				$exploded = explode(':', $foreign_field, 2);
				if($exploded[0] == 'CALC')
				{
					$user_groups = $this->Application->RecallVar('UserGroups');
					$field_name = str_replace('{PREFIX}', TABLE_PREFIX, $exploded[1]);
					$join_clause = str_replace('{PREFIX}', TABLE_PREFIX, $record['JoinClause']);
					$join_clause = str_replace('{USER_GROUPS}', $user_groups, $join_clause);
					$join_clause = ' LEFT JOIN '.$join_clause;

					$condition_mode = 'HAVING';
				}
				else {
					$exploded = explode('.', $foreign_field);
					$foreign_table = TABLE_PREFIX.$exploded[0];

					if($record['CustomFieldId']) {
						$exploded[1] = 'l'.$lang.'_'.$exploded[1];
					}

					$alias_counter++;
					$alias = 't'.$alias_counter;

					$field_name = $alias.'.'.$exploded[1];
					$join_clause = str_replace('{ForeignTable}', $alias, $record['JoinClause']);
					$join_clause = str_replace('{LocalTable}', $product_table, $join_clause);

					if($record['CustomFieldId'])
					{
						$join_clause .= ' AND '.$alias.'.CustomFieldId='.$record['CustomFieldId'];
					}
					$join_clause = '	LEFT JOIN '.$foreign_table.' '.$alias.'
										ON '.$join_clause;
				}
			}
			else
			{
				// processing fields from local table
				if ($record['CustomFieldId']) {
					$local_table = 'custom_data';
					$field_name = 'l'.$lang.'_cust_'.array_search($field_name, $custom_fields);
				}

				$field_name = $local_table.'.'.$field_name;
			}

			$condition = '';
			switch($record['FieldType'])
			{
				case 'text':
					$keywords[$field] = unhtmlentities( $keywords[$field] );

					if(strlen($keywords[$field]) >= $this->Application->ConfigValue('Search_MinKeyword_Length'))
					{
						$highlight_keywords[] = $keywords[$field];
						if( in_array($verbs[$field], Array('any', 'contains', 'notcontains')) )
						{
							$keywords[$field] = '%'.strtr($keywords[$field], Array('%' => '\\%', '_' => '\\_')).'%';
						}
						$condition = sprintf(	$condition_patterns[$verbs[$field]],
												$field_name,
												$this->Conn->qstr( $keywords[$field] ));
					}
				break;
				case 'boolean':
					if($keywords[$field] != -1)
					{
						$property_mappings = $this->Application->getUnitOption($event->Prefix, 'ItemPropertyMappings');
						switch($field)
						{
							case 'HotItem':
								$hot_limit_var = getArrayValue($property_mappings, 'HotLimit');
								if($hot_limit_var)
								{
									$sql = 'SELECT Data FROM '.TABLE_PREFIX.'Cache WHERE VarName="'.$hot_limit_var.'"';
									$hot_limit = (int)$this->Conn->GetOne($sql);
									$condition = 	'IF('.$product_table.'.HotItem = 2,
													IF('.$product_table.'.Hits >= '.
													$hot_limit.
													', 1, 0), '.$product_table.'.HotItem) = '.$keywords[$field];
								}
							break;
							case 'PopItem':
								$votes2pop_var = getArrayValue($property_mappings, 'VotesToPop');
								$rating2pop_var = getArrayValue($property_mappings, 'RatingToPop');
								if($votes2pop_var && $rating2pop_var)
								{
									$condition = 'IF('.$product_table.'.PopItem = 2, IF('.$product_table.'.CachedVotesQty >= '.
													$this->Application->ConfigValue($votes2pop_var).
													' AND '.$product_table.'.CachedRating >= '.
													$this->Application->ConfigValue($rating2pop_var).
													', 1, 0), '.$product_table.'.PopItem) = '.$keywords[$field];
								}
							break;
							case 'NewItem':
								$new_days_var = getArrayValue($property_mappings, 'NewDays');
								if($new_days_var)
								{
									$condition = 	'IF('.$product_table.'.NewItem = 2,
													IF('.$product_table.'.CreatedOn >= (UNIX_TIMESTAMP() - '.
													$this->Application->ConfigValue($new_days_var).
													'*3600*24), 1, 0), '.$product_table.'.NewItem) = '.$keywords[$field];
								}
							break;
							case 'EditorsPick':
								$condition = $product_table.'.EditorsPick = '.$keywords[$field];
							break;
						}
					}
				break;
				case 'range':
					$range_conditions = Array();
					if($keywords[$field.'_from'] && !preg_match("/[^0-9]/i", $keywords[$field.'_from']))
					{
						$range_conditions[] = $field_name.' >= '.$keywords[$field.'_from'];
					}
					if($keywords[$field.'_to'] && !preg_match("/[^0-9]/i", $keywords[$field.'_to']))
					{
						$range_conditions[] = $field_name.' <= '.$keywords[$field.'_to'];
					}
					if($range_conditions)
					{
						$condition = implode(' AND ', $range_conditions);
					}
				break;
				case 'date':
					if($keywords[$field])
					{
						if( in_array($keywords[$field], Array('today', 'yesterday')) )
						{
							$current_time = getdate();
							$day_begin = adodb_mktime(0, 0, 0, $current_time['mon'], $current_time['mday'], $current_time['year']);
							$time_mapping = Array('today' => $day_begin, 'yesterday' => ($day_begin - 86400));
							$min_time = $time_mapping[$keywords[$field]];
						}
						else
						{
							$time_mapping = Array(	'last_week' => 604800,		'last_month' => 2628000,
													'last_3_months' => 7884000,	'last_6_months' => 15768000,
													'last_year' => 31536000
												);
							$min_time = adodb_mktime() - $time_mapping[$keywords[$field]];
						}
						$condition = $field_name.' > '.$min_time;
					}
				break;
			}

			if($condition)
			{
				if($join_clause)
				{
					$join_clauses[] = $join_clause;
				}
				$relevance_parts[] = 'IF('.$condition.', '.$record['Priority'].', 0)';
				if($glues[$field] == 1) // and
				{
					if($condition_mode == 'WHERE')
					{
						$and_conditions[] = $condition;
					}
					else
					{
						$and_having_conditions[] = $condition;
					}
				}
				else // or
				{
					if($condition_mode == 'WHERE')
					{
						$or_conditions[] = $condition;
					}
					else
					{
						$or_having_conditions[] = $condition;
					}
				}

				// create search log record
				$search_log_data = Array('search_config' => $record, 'verb' => getArrayValue($verbs, $field), 'value' => ($record['FieldType'] == 'range') ? $search_keywords[$field.'_from'].'|'.$search_keywords[$field.'_to'] : $search_keywords[$field]);
				$search_log[] = $this->Application->Phrase('la_Field').' "'.$this->getHuman('Field', $search_log_data).'" '.$this->getHuman('Verb', $search_log_data).' '.$this->Application->Phrase('la_Value').' '.$this->getHuman('Value', $search_log_data).' '.$this->Application->Phrase($glues[$field] == 1 ? 'lu_And' : 'lu_Or');
			}
		}

		$search_log = implode('<br />', $search_log);
    	$search_log = preg_replace('/(.*) '.preg_quote($this->Application->Phrase('lu_and'), '/').'|'.preg_quote($this->Application->Phrase('lu_or'), '/').'$/is', '\\1', $search_log);
    	$this->saveToSearchLog($search_log, 1); // advanced search

		$this->Application->StoreVar('highlight_keywords', serialize($highlight_keywords));

		// making relevance clause
		if($relevance_parts)
		{
			$rel_keywords	= $this->Application->ConfigValue('SearchRel_Keyword_products')	/ 100;
			$rel_pop		= $this->Application->ConfigValue('SearchRel_Pop_products')		/ 100;
			$rel_rating		= $this->Application->ConfigValue('SearchRel_Rating_products')	/ 100;
			$relevance_clause = '('.implode(' + ', $relevance_parts).') / '.$weight_sum.' * '.$rel_keywords;
			$relevance_clause .= ' + (Hits + 1) / (MAX(Hits) + 1) * '.$rel_pop;
			$relevance_clause .= ' + (CachedRating + 1) / (MAX(CachedRating) + 1) * '.$rel_rating;
		}
		else
		{
			$relevance_clause = '0';
		}

		// building having clause
		if($or_having_conditions)
		{
			$and_having_conditions[] = '('.implode(' OR ', $or_having_conditions).')';
		}
		$having_clause = implode(' AND ', $and_having_conditions);
		$having_clause = $having_clause ? ' HAVING '.$having_clause : '';

		// building where clause
		if($or_conditions)
		{
			$and_conditions[] = '('.implode(' OR ', $or_conditions).')';
		}
//		$and_conditions[] = $product_table.'.Status = 1';
		$where_clause = implode(' AND ', $and_conditions);
		if(!$where_clause)
		{
			if($having_clause)
			{
				$where_clause = '1';
			}
			else
			{
				$where_clause = '0';
				$this->Application->SetVar('adv_search_error', 1);
			}
		}
		$where_clause .= ' AND '.$product_table.'.Status = 1';

		// building final search query
		$search_table = TABLE_PREFIX.'ses_'.$this->Application->GetSID().'_'.TABLE_PREFIX.'Search';

		$this->Conn->Query('DROP TABLE IF EXISTS '.$search_table);

		$sql = '	CREATE TABLE '.$search_table.'
					SELECT 	'.$relevance_clause.' AS Relevance,
							'.$product_table.'.ProductId AS ItemId,
							'.$product_table.'.ResourceId AS ResourceId,
							11 AS ItemType,
							'.$product_table.'.EditorsPick AS EdPick
					FROM '.$product_table.'
					'.implode(' ', $join_clauses).'
					WHERE '.$where_clause.'
					GROUP BY '.$product_table.'.ProductId'.
					$having_clause;

		$res = $this->Conn->Query($sql);
	}


	function getHuman($type, $search_data)
	{
		$type = ucfirst(strtolower($type));
		extract($search_data);

		switch ($type) {
			case 'Field':
				return $this->Application->Phrase($search_config['DisplayName']);
				break;

			case 'Verb':
				return $verb ? $this->Application->Phrase('lu_advsearch_'.$verb) : '';
				break;

			case 'Value':
				switch ($search_config['FieldType']) {
					case 'date':
						$values = Array(0 => 'lu_comm_Any', 'today' => 'lu_comm_Today',
										'yesterday' => 'lu_comm_Yesterday', 'last_week' => 'lu_comm_LastWeek',
										'last_month' => 'lu_comm_LastMonth', 'last_3_months' => 'lu_comm_Last3Months',
										'last_6_months' => 'lu_comm_Last6Months', 'last_year' => 'lu_comm_LastYear');
						$ret = $this->Application->Phrase($values[$value]);
						break;

					case 'range':
						$value = explode('|', $value);
						return $this->Application->Phrase('lu_comm_From').' "'.$value[0].'" '.$this->Application->Phrase('lu_comm_To').' "'.$value[1].'"';
						break;

					case 'boolean':
						$values = Array(1 => 'lu_comm_Yes', 0 => 'lu_comm_No', -1 => 'lu_comm_Both');
						$ret = $this->Application->Phrase($values[$value]);
						break;

					case 'text':
						$ret = $value;
						break;

				}
				return '"'.$ret.'"';
				break;
		}
	}


	/**
	 * Set's correct page for list
	 * based on data provided with event
	 *
	 * @param kEvent $event
	 * @access private
	 * @see OnListBuild
	 */
	function SetPagination(&$event)
	{
		// get PerPage (forced -> session -> config -> 10)
		$per_page = $this->getPerPage($event);


		$object =& $event->getObject();
		$object->SetPerPage($per_page);
		$this->Application->StoreVarDefault($event->getPrefixSpecial().'_Page', 1);

		$page = $this->Application->GetVar($event->getPrefixSpecial().'_Page');
		if (!$page)
		{
			$page = $this->Application->GetVar($event->getPrefixSpecial(true).'_Page');
		}

		if (!$page)
		{
			if( $this->Application->RewriteURLs() )
			{
				$page = $this->Application->GetVar($event->Prefix.'_Page');
				if (!$page)
				{
					$page = $this->Application->RecallVar($event->Prefix.'_Page');
				}
				if($page) $this->Application->StoreVar($event->getPrefixSpecial().'_Page', $page);
			}
			else
			{
				$page = $this->Application->RecallVar($event->getPrefixSpecial().'_Page');
			}
		}
		else {
			$this->Application->StoreVar($event->getPrefixSpecial().'_Page', $page);
		}

		if( !$event->getEventParam('skip_counting') )
		{
			$pages = $object->GetTotalPages();
			if($page > $pages)
			{
				$this->Application->StoreVar($event->getPrefixSpecial().'_Page', 1);
				$page = 1;
			}
		}

		/*$cur_per_page = $per_page;
		$per_page = $event->getEventParam('per_page');
		if ($per_page == 'list_next') {

			$cur_page = $page;

			$object =& $this->Application->recallObject($event->Prefix);
			$object->SetPerPage(1);
			$cur_item_index = $object->CurrentIndex;

			$page = ($cur_page-1) * $cur_per_page + $cur_item_index + 1;
			$object->SetPerPage(1);
		}*/

		$object->SetPage($page);
	}

/* === RELATED TO IMPORT/EXPORT: BEGIN === */

	/**
	 * Shows export dialog
	 *
	 * @param kEvent $event
	 */
	function OnExport(&$event)
	{
		// use old fasion (in-portal) grid
		$selector_name = $this->Application->getUnitOption($event->Prefix, 'CatalogSelectorName');
		if ($selector_name) {
			$selected_ids = $this->Application->GetVar($selector_name);
		}
		else {
			$selected_ids = $this->StoreSelectedIDs($event);

			if (implode(',', $selected_ids) == '') {
				// K4 fix when no ids found bad selected ids array is formed
				$selected_ids = false;
			}
		}

		$selected_cats_ids = $this->Application->GetVar('export_categories');

		$this->Application->StoreVar($event->Prefix.'_export_ids', $selected_ids ? implode(',', $selected_ids) : '' );
		$this->Application->StoreVar($event->Prefix.'_export_cats_ids', $selected_cats_ids);

		$export_helper =& $this->Application->recallObject('CatItemExportHelper');
		$event->redirect = $export_helper->getModuleFolder($event).'/export';

		$redirect_params = Array(	'm_opener' => 'd',
									$this->Prefix.'.export_event' => 'OnNew',
									'pass' => 'all,'.$this->Prefix.'.export');

		$event->setRedirectParams($redirect_params);
	}

	/**
	 * Performs each export step & displays progress percent
	 *
	 * @param kEvent $event
	 */
	function OnExportProgress(&$event)
	{
		$export_object =& $this->Application->recallObject('CatItemExportHelper');
		/* @var $export_object kCatDBItemExportHelper */

		$event = new kEvent($event->getPrefixSpecial().':OnDummy');

		$action_method = 'perform'.ucfirst($event->Special);
		$field_values = $export_object->$action_method($event);

		// finish code is done from JS now
		if ($field_values['start_from'] == $field_values['total_records']) {
			if ($event->Special == 'import') {
				$this->Application->StoreVar('PermCache_UpdateRequired', 1);
				$this->Application->Redirect('in-portal/categories/cache_updater', Array('m_opener' => 'r', 'pass' => 'm', 'continue' => 1, 'no_amp' => 1));
			}
			elseif ($event->Special == 'export') {
				$template = $this->Application->getUnitOption($event->Prefix, 'ModuleFolder').'/'.$event->Special.'_finish';
				$this->Application->Redirect($template, Array('pass' => 'all'));
			}
		}

		$export_options = $export_object->loadOptions($event);
		echo $export_options['start_from']  * 100 / $export_options['total_records'];

		$event->status = erSTOP;
	}

	/**
	 * Returns specific to each item type columns only
	 *
	 * @param kEvent $event
	 * @return Array
	 */
	function getCustomExportColumns(&$event)
	{
		return Array(	'__VIRTUAL__ThumbnailImage'	=>	'ThumbnailImage',
						'__VIRTUAL__FullImage' 		=>	'FullImage',
						'__VIRTUAL__ImageAlt'		=>	'ImageAlt');
	}

	/**
	 * Sets non standart virtual fields (e.g. to other tables)
	 *
	 * @param kEvent $event
	 */
	function setCustomExportColumns(&$event)
	{
		$this->restorePrimaryImage($event);
	}

	/**
	 * Create/Update primary image record in info found in imported data
	 *
	 * @param kEvent $event
	 */
	function restorePrimaryImage(&$event)
	{
		$object =& $event->getObject();

		$has_image_info = $object->GetDBField('ImageAlt') && ($object->GetDBField('ThumbnailImage') || $object->GetDBField('FullImage'));
		if (!$has_image_info) {
			return false;
		}

		$image_data = $object->getPrimaryImageData();

		$image =& $this->Application->recallObject('img', null, Array('skip_autoload' => true));
		if ($image_data) {
			$image->Load($image_data['ImageId']);
		}
		else {
			$image->Clear();
			$image->SetDBField('Name', 'main');
			$image->SetDBField('DefaultImg', 1);
			$image->SetDBField('ResourceId', $object->GetDBField('ResourceId'));
		}

		$image->SetDBField('AltName', $object->GetDBField('ImageAlt'));

		if ($object->GetDBField('ThumbnailImage')) {
			$thumbnail_field = $this->isURL( $object->GetDBField('ThumbnailImage') ) ? 'ThumbUrl' : 'ThumbPath';
			$image->SetDBField($thumbnail_field, $object->GetDBField('ThumbnailImage') );
			$image->SetDBField('LocalThumb', $thumbnail_field == 'ThumbPath' ? 1 : 0);
		}

		if (!$object->GetDBField('FullImage')) {
			$image->SetDBField('SameImages', 1);
		}
		else {
			$image->SetDBField('SameImages', 0);
			$full_field = $this->isURL( $object->GetDBField('FullImage') ) ? 'Url' : 'LocalPath';
			$image->SetDBField($full_field, $object->GetDBField('FullImage') );
			$image->SetDBField('LocalImage', $full_field == 'LocalPath' ? 1 : 0);
		}

		if ($image->isLoaded()) {
			$image->Update();
		}
		else {
			$image->Create();
		}
	}

	function isURL($path)
	{
		return preg_match('#(http|https)://(.*)#', $path);
	}

	/**
	 * Prepares item for import/export operations
	 *
	 * @param kEvent $event
	 */
	function OnNew(&$event)
	{
		parent::OnNew($event);

		if ($event->Special == 'import' || $event->Special == 'export') {
			$export_helper =& $this->Application->recallObject('CatItemExportHelper');
			$export_helper->setRequiredFields($event);
			$this->Application->StoreVar('ImportCategory', 0);
		}
	}

	/**
	 * Process items selected in item_selector
	 *
	 * @param kEvent $event
	 */
	function OnProcessSelected(&$event)
	{
		$selected_ids = $this->Application->GetVar('selected_ids');

		$dst_field = $this->Application->RecallVar('dst_field');

		if ($dst_field == 'ItemCategory') {
			// Item Edit -> Categories Tab -> New Categories
			$object =& $event->getObject();
			$category_ids = explode(',', $selected_ids['c']);
			foreach ($category_ids as $category_id) {
				$object->assignToCategory($category_id);
			}
		}

		if ($dst_field == 'ImportCategory') {
			// Tools -> Import -> Item Import -> Select Import Category
			$this->Application->StoreVar('ImportCategory', $selected_ids['c']);
//			$this->Application->StoreVar($event->getPrefixSpecial().'_ForceNotValid', 1); // not to loose import/export values on form refresh

			$this->Application->SetVar($event->getPrefixSpecial().'_id', 0);
			$this->Application->SetVar($event->getPrefixSpecial().'_event', 'OnExportBegin');

			$passed = $this->Application->GetVar('passed');
			$this->Application->SetVar('passed', $passed.','.$event->getPrefixSpecial());
			$event->setEventParam('pass_events', true);
		}

		$this->finalizePopup($event);
	}

	/**
	 * Saves Import/Export settings to session
	 *
	 * @param kEvent $event
	 */
	function OnSaveSettings(&$event)
	{
		$event->redirect = false;
		$items_info = $this->Application->GetVar( $event->getPrefixSpecial(true) );
		if ($items_info) {
			list($id, $field_values) = each($items_info);

			$object =& $event->getObject( Array('skip_autoload' => true) );
			$object->SetFieldsFromHash($field_values);
			$field_values['ImportFilename'] = $object->GetDBField('ImportFilename'); //if upload formatter has renamed the file during moving !!!
			$field_values['ImportSource'] = 2;
			$field_values['ImportLocalFilename'] = $object->GetDBField('ImportFilename');
			$items_info[$id] = $field_values;

			$this->Application->StoreVar($event->getPrefixSpecial().'_ItemsInfo', serialize($items_info));
		}
	}

	function OnCancelAction(&$event)
	{
		$event->redirect_params = Array('pass' => 'all,'.$event->GetPrefixSpecial());
		$event->redirect = $this->Application->GetVar('cancel_template');
	}

/* === RELATED TO IMPORT/EXPORT: END === */

	/**
	 * Stores item's owner login into separate field together with id
	 *
	 * @param kEvent $event
	 * @param string $id_field
	 * @param string $cached_field
	 */
	function cacheItemOwner(&$event, $id_field, $cached_field)
	{
		$object =& $event->getObject();

		$user_id = $object->GetDBField($id_field);
		$options = $object->GetFieldOptions($id_field);
		if (isset($options['options'][$user_id])) {
			$object->SetDBField($cached_field, $options['options'][$user_id]);
		}
		else {
			$id_field = $this->Application->getUnitOption('u', 'IDField');
			$table_name = $this->Application->getUnitOption('u', 'TableName');

			$sql = 'SELECT Login
					FROM '.$table_name.'
					WHERE '.$id_field.' = '.$user_id;
			$object->SetDBField($cached_field, $this->Conn->GetOne($sql));
		}
	}

	/**
	 * Saves item beeing edited into temp table
	 *
	 * @param kEvent $event
	 */
	function OnPreSave(&$event)
	{
		parent::OnPreSave($event);
		$use_pending_editing = $this->Application->getUnitOption($event->Prefix, 'UsePendingEditing');
		if ($event->status == erSUCCESS && $use_pending_editing) {
			// decision: clone or not clone

			$object =& $event->getObject();
			if ($object->GetID() == 0 || $object->GetDBField('OrgId') > 0) {
				// new items or cloned items shouldn't be cloned again
				return true;
			}
			$perm_helper =& $this->Application->recallObject('PermissionsHelper');
			if ($perm_helper->ModifyCheckPermission($object->GetDBField('CreatedById'), $object->GetDBField('CategoryId'), $event->Prefix) == 2) {

				// 1. clone original item
				$temp_handler =& $this->Application->recallObject($event->getPrefixSpecial().'_TempHandler', 'kTempTablesHandler');
				$cloned_ids = $temp_handler->CloneItems($event->Prefix, $event->Special, Array($object->GetID()), null, null, null, true);
				$ci_table = $this->Application->GetTempName(TABLE_PREFIX.'CategoryItems');

				// 2. delete record from CategoryItems (about cloned item) that was automatically created during call of Create method of kCatDBItem
				$sql = 'SELECT ResourceId
						FROM '.$object->TableName.'
						WHERE '.$object->IDField.' = '.$cloned_ids[0];
				$clone_resource_id = $this->Conn->GetOne($sql);

				$sql = 'DELETE FROM '.$ci_table.'
						WHERE ItemResourceId = '.$clone_resource_id.' AND PrimaryCat = 1';
				$this->Conn->Query($sql);

				// 3. copy main item categoryitems to cloned item
				$sql = '	INSERT INTO '.$ci_table.' (CategoryId, ItemResourceId, PrimaryCat, ItemPrefix, Filename)
							SELECT CategoryId, '.$clone_resource_id.' AS ItemResourceId, PrimaryCat, ItemPrefix, Filename
							FROM '.$ci_table.'
							WHERE ItemResourceId = '.$object->GetDBField('ResourceId');
				$this->Conn->Query($sql);

				// 4. put cloned id to OrgId field of item being cloned
				$sql = 'UPDATE '.$object->TableName.'
						SET OrgId = '.$object->GetID().'
						WHERE '.$object->IDField.' = '.$cloned_ids[0];
				$this->Conn->Query($sql);

				// 5. substitute id of item being cloned with clone id
				$this->Application->SetVar($event->getPrefixSpecial().'_id', $cloned_ids[0]);

				$selected_ids = $this->getSelectedIDs($event, true);
				$selected_ids[ array_search($object->GetID(), $selected_ids) ] = $cloned_ids[0];
				$this->StoreSelectedIDs($event, $selected_ids);

				// 6. delete original item from temp table
				$temp_handler->DeleteItems($event->Prefix, $event->Special, Array($object->GetID()));
			}
		}
	}

	/**
	 * Sets default expiration based on module setting
	 *
	 * @param kEvent $event
	 */
	function OnPreCreate(&$event)
	{
		parent::OnPreCreate($event);

		if ($event->status == erSUCCESS) {
			$object =& $event->getObject();
			$object->SetDBField('CreatedById', $this->Application->RecallVar('user_id'));
		}
	}

	/**
	 * Occures before original item of item in pending editing got deleted (for hooking only)
	 *
	 * @param kEvent $event
	 */
	function OnBeforeDeleteOriginal(&$event)
	{

	}

	/**
	 * Occures before an item is cloneded
	 * Id of ORIGINAL item is passed as event' 'id' param
	 * Do not call object' Update method in this event, just set needed fields!
	 *
	 * @param kEvent $event
	 */
	function OnBeforeClone(&$event)
	{
		if ($this->Application->GetVar('ResetCatBeforeClone')) {
			$object =& $event->getObject();
			$object->SetDBField('CategoryId', null);
		}
	}

	/**
	 * Set status for new category item based on user permission in category
	 *
	 * @param kEvent $event
	 */
	function OnBeforeItemCreate(&$event)
	{
		if ($this->Application->IsAdmin()) {
			return true;
		}

		$use_pending_editing = $this->Application->getUnitOption($event->Prefix, 'UsePendingEditing');
		if ($use_pending_editing) {
			$object =& $event->getObject();
			/* @var $object kDBItem */

			$perm_helper =& $this->Application->recallObject('PermissionsHelper');
			/* @var $perm_helper kPermissionsHelper */

			$primary_category = $object->GetDBField('CategoryId') > 0 ? $object->GetDBField('CategoryId') : $this->Application->GetVar('m_cat_id');
			$item_status = $perm_helper->AddCheckPermission($primary_category, $event->Prefix);
			if ($item_status == STATUS_DISABLED) {
				$event->status = erFAIL;
				return false;
			}
			else {
				$object->SetDBField('Status', $item_status);
			}
		}
	}

	/**
	 * Creates category item & redirects to confirmation template (front-end only)
	 *
	 * @param kEvent $event
	 */
	function OnCreate(&$event)
	{
		parent::OnCreate($event);
		$this->SetFrontRedirectTemplate($event, 'suggest');
	}

		/**
	 * Creates category item & redirects to confirmation template (front-end only)
	 *
	 * @param kEvent $event
	 */
	function OnUpdate(&$event)
	{
		$use_pending = $this->Application->getUnitOption($event->Prefix, 'UsePendingEditing');
		if ($this->Application->IsAdmin() || !$use_pending) {
			parent::OnUpdate($event);
			$this->SetFrontRedirectTemplate($event, 'modify');
			return ;
		}

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

		$items_info = $this->Application->GetVar($event->getPrefixSpecial(true));
		if ($items_info) {
			$perm_helper =& $this->Application->recallObject('PermissionsHelper');
			/* @var $perm_helper kPermissionsHelper */

			$temp_handler =& $this->Application->recallObject($event->getPrefixSpecial().'_TempHandler', 'kTempTablesHandler');
			/* @var $temp_handler kTempTablesHandler */

			foreach ($items_info as $id => $field_values) {
				$object->Load($id);
				$edit_perm = $perm_helper->ModifyCheckPermission($object->GetDBField('CreatedById'), $object->GetDBField('CategoryId'), $event->Prefix);

 				if ($use_pending && !$object->GetDBField('OrgId') && ($edit_perm == STATUS_PENDING)) {
					// pending editing enabled + not pending copy -> get/create pending copy & save changes to it
					$original_id = $object->GetID();
					$original_resource_id = $object->GetDBField('ResourceId');

					$object->Load($original_id, 'OrgId');
					if (!$object->isLoaded()) {
						// 1. user has no pending copy of live item -> clone live item
						$cloned_ids = $temp_handler->CloneItems($event->Prefix, $event->Special, Array($original_id), null, null, null, true);
						$object->Load($cloned_ids[0]);
						$object->SetFieldsFromHash($field_values);

						// 1a. delete record from CategoryItems (about cloned item) that was automatically created during call of Create method of kCatDBItem
						$ci_table = $this->Application->getUnitOption('ci', 'TableName');
						$sql = 'DELETE FROM '.$ci_table.'
								WHERE ItemResourceId = '.$object->GetDBField('ResourceId').' AND PrimaryCat = 1';
						$this->Conn->Query($sql);

						// 1b. copy main item categoryitems to cloned item
						$sql = 'INSERT INTO '.$ci_table.' (CategoryId, ItemResourceId, PrimaryCat, ItemPrefix, Filename)
								SELECT CategoryId, '.$object->GetDBField('ResourceId').' AS ItemResourceId, PrimaryCat, ItemPrefix, Filename
								FROM '.$ci_table.'
								WHERE ItemResourceId = '.$original_resource_id;
						$this->Conn->Query($sql);

						// 1c. put cloned id to OrgId field of item being cloned
						$object->SetDBField('Status', STATUS_PENDING_EDITING);
						$object->SetDBField('OrgId', $original_id);
					}
					else {
						// 2. user has pending copy of live item -> just update field values
						$object->SetFieldsFromHash($field_values);
					}

					// update id in request (used for redirect in mod-rewrite mode)
					$this->Application->SetVar($event->getPrefixSpecial().'_id', $object->GetID());
 				}
 				else {
 					// 3. already editing pending copy -> just update field values
 					$object->SetFieldsFromHash($field_values);
 				}

				if ($object->Update()) {
					$event->status = erSUCCESS;
				}
				else {
					$event->status = erFAIL;
					$event->redirect = false;
					break;
				}
			}
		}

		$this->SetFrontRedirectTemplate($event, 'modify');
	}

	/**
	 * Sets next template to one required for front-end after adding/modifying item
	 *
	 * @param kEvent $event
	 * @param string $template_key - {suggest,modify}
	 */
	function SetFrontRedirectTemplate(&$event, $template_key)
	{
		if ($this->Application->IsAdmin() || $event->status != erSUCCESS) {
			return ;
		}

		// prepare redirect template
		$object =& $event->getObject();
		$is_active = ($object->GetDBField('Status') == STATUS_ACTIVE);

		$next_template = $is_active ? 'confirm_template' : 'pending_confirm_template';
		$event->redirect = $this->Application->GetVar($template_key.'_'.$next_template);
		$event->SetRedirectParam('opener', 's');

		// send email events
		$perm_prefix = $this->Application->getUnitOption($event->Prefix, 'PermItemPrefix');
		switch ($event->Name) {
			case 'OnCreate':
				$event_suffix = $is_active ? 'ADD' : 'ADD.PENDING';
				$this->Application->EmailEventAdmin($perm_prefix.'.'.$event_suffix); // there are no ADD.PENDING event for admin :(
				$this->Application->EmailEventUser($perm_prefix.'.'.$event_suffix, $object->GetDBField('CreatedById'));
				break;

			case 'OnUpdate':
				$event_suffix = $is_active ? 'MODIFY' : 'MODIFY.PENDING';
				$this->Application->EmailEventAdmin($perm_prefix.'.'.$event_suffix); // there are no ADD.PENDING event for admin :(
				$this->Application->EmailEventUser($perm_prefix.'.'.$event_suffix, $object->GetDBField('ModifiedById'));
				break;
		}
	}

	/**
	 * Apply same processing to each item beeing selected in grid
	 *
	 * @param kEvent $event
	 * @access private
	 */
	function iterateItems(&$event)
	{
		if ($event->Name != 'OnMassApprove' && $event->Name != 'OnMassDecline') {
			return parent::iterateItems($event);
		}

		if ($this->Application->CheckPermission('SYSTEM_ACCESS.READONLY', 1)) {
			return;
		}

		$object =& $event->getObject( Array('skip_autoload' => true) );
		$ids = $this->StoreSelectedIDs($event);

		if ($ids) {
			foreach ($ids as $id) {
				$object->Load($id);

				switch ($event->Name) {
					case 'OnMassApprove':
						$ret = $object->ApproveChanges();
						break;

					case 'OnMassDecline':
						$ret = $object->DeclineChanges();
						break;
				}

				if (!$ret) {
					$event->status = erFAIL;
					$event->redirect = false;
					break;
				}
			}
		}
	}

	/**
	 * Deletes items & preserves clean env
	 *
	 * @param kEvent $event
	 */
	function OnMassDelete(&$event)
	{
		parent::OnMassDelete($event);

		if ($event->status == erSUCCESS && !$this->Application->IsAdmin()) {
			$event->SetRedirectParam('pass', 'm');
			$event->SetRedirectParam('m_cat_id', 0);
		}
	}


	/**
	 * Deletes items & preserves clean env
	 *
	 * @param kEvent $event
	 */
	function OnDelete(&$event)
	{
		parent::OnDelete($event);

		if ($event->status == erSUCCESS && !$this->Application->IsAdmin()) {
			$event->SetRedirectParam('pass', 'm');
			$event->SetRedirectParam('m_cat_id', 0);
		}
	}

	/**
	 * Checks, that currently loaded item is allowed for viewing (non permission-based)
	 *
	 * @param kEvent $event
	 * @return bool
	 */
	function checkItemStatus(&$event)
	{
		$object =& $event->getObject();
		if (!$object->isLoaded()) {
			return true;
		}

		$status = $object->GetDBField('Status');

		$user_id = $this->Application->RecallVar('user_id');
		if (($status == -2 || $status == STATUS_PENDING) && ($object->GetDBField('CreatedById') == $user_id)) {
			return true;
		}

		return $status == STATUS_ACTIVE;
	}

	/**
	 * Set sorting directly to session
	 *
	 * @param kEvent $event
	 */
	function OnSetSortingDirect(&$event)
	{
		$combined = $this->Application->GetVar($event->Prefix.'_CombinedSorting');
		if ($combined) {
			list($field, $dir) = explode('|', $combined);
			$this->Application->StoreVar($event->Prefix.'_Sort1', $field);
			$this->Application->StoreVar($event->Prefix.'_Sort1_Dir', $dir);
			return ;
		}

		$field_pos = $this->Application->GetVar($event->Prefix.'_SortPos');
		$this->Application->LinkVar($event->Prefix.'_Sort'.$field_pos, $event->Prefix.'_Sort'.$field_pos);
		$this->Application->LinkVar($event->Prefix.'_Sort'.$field_pos.'_Dir', $event->Prefix.'_Sort'.$field_pos.'_Dir');
	}

	/**
	 * Set's correct sorting for list
	 * based on data provided with event
	 *
	 * @param kEvent $event
	 * @access private
	 * @see OnListBuild
	 */
	function SetSorting(&$event)
	{
		if ($this->Application->IsAdmin()) {
			parent::SetSorting($event);
			return ;
		}

		$event->setPseudoClass('_List');
		$object =& $event->getObject();

		$cur_sort1		=	$this->Application->RecallVar($event->Prefix.'_Sort1');
		$cur_sort1_dir	=	$this->Application->RecallVar($event->Prefix.'_Sort1_Dir');
		$cur_sort2		=	$this->Application->RecallVar($event->Prefix.'_Sort2');
		$cur_sort2_dir	=	$this->Application->RecallVar($event->Prefix.'_Sort2_Dir');


		$sorting_configs = $this->Application->getUnitOption($event->Prefix, 'ConfigMapping');
		$list_sortings = $this->Application->getUnitOption($event->Prefix, 'ListSortings');
		$sorting_prefix = getArrayValue($list_sortings, $event->Special) ? $event->Special : '';

		$tag_sort_by = $event->getEventParam('sort_by');
		if ($tag_sort_by) {
			if ($tag_sort_by == 'random') {
				$by = 'RAND()';
				$dir = '';
			}
			else {
			list($by, $dir) = explode(',', $tag_sort_by);
			}
			$object->AddOrderField($by, $dir);
		}

		if ($sorting_configs && isset ($sorting_configs['DefaultSorting1Field'])){
			$list_sortings[$sorting_prefix]['Sorting'] = Array(
				$this->Application->ConfigValue($sorting_configs['DefaultSorting1Field']) => $this->Application->ConfigValue($sorting_configs['DefaultSorting1Dir']),
				$this->Application->ConfigValue($sorting_configs['DefaultSorting2Field']) => $this->Application->ConfigValue($sorting_configs['DefaultSorting2Dir']),
			);
		}

		// Use default if not specified
		if ( !$cur_sort1 || !$cur_sort1_dir)
		{
			if ( $sorting = getArrayValue($list_sortings, $sorting_prefix, 'Sorting') ) {
				reset($sorting);
				$cur_sort1 = key($sorting);
				$cur_sort1_dir = current($sorting);
				if (next($sorting)) {
					$cur_sort2 =	key($sorting);
					$cur_sort2_dir =	current($sorting);
				}
			}
		}

		if ( $forced_sorting = getArrayValue($list_sortings, $sorting_prefix, 'ForcedSorting') ) {
			foreach ($forced_sorting as $field => $dir) {
				$object->AddOrderField($field, $dir);
			}
		}

		if($cur_sort1 != '' && $cur_sort1_dir != '')
		{
			$object->AddOrderField($cur_sort1, $cur_sort1_dir);
		}

		if($cur_sort2 != '' && $cur_sort2_dir != '')
		{
			$object->AddOrderField($cur_sort2, $cur_sort2_dir);
		}
	}

	/**
	 * Returns current per-page setting for list
	 *
	 * @param kEvent $event
	 * @return int
	 */
	function getPerPage(&$event)
	{
		if ($this->Application->IsAdmin()) {
			return parent::getPerPage($event);
		}

		$special = $event->Special;
		$event->Init($event->Prefix);
		$per_page = parent::getPerPage($event);
		$event->Init($event->Prefix, $special);

		return $per_page;
	}

}

?>