Repository explorer GUI class. More...

Inheritance diagram for ilRepositoryExplorerGUI:

Collaboration diagram for ilRepositoryExplorerGUI:

Public Member Functions
	__construct ($a_parent_obj, $a_parent_cmd)
	Constructor. More...

	getRootNode ()
	Get root node. More...

	getNodeContent ($a_node)
	Get node content. More...

	getNodeIcon ($a_node)
	Get node icon. More...

	getNodeIconAlt ($a_node)
	Get node icon alt text. More...

	isNodeHighlighted ($a_node)
	Is node highlighted? More...

	getNodeHref ($a_node)
	Get href for node. More...

	isNodeVisible ($a_node)
	Is node visible. More...

	sortChilds ($a_childs, $a_parent_node_id)
	Sort childs. More...

	getChildsOfNode ($a_parent_node_id)
	Get childs of node. More...

	isNodeClickable ($a_node)
	Is node clickable? More...

Public Member Functions inherited from ilTreeExplorerGUI
	__construct ($a_expl_id, $a_parent_obj, $a_parent_cmd, $a_tree)
	Constructor. More...

	getTree ()
	Get tree. More...

	setOrderField ($a_val, $a_numeric=false)
	Set order field. More...

	getOrderField ()
	Get order field. More...

	setTypeWhiteList ($a_val)
	Set type white list. More...

	getTypeWhiteList ()
	Get type white list. More...

	setTypeBlackList ($a_val)
	Set type black list. More...

	getTypeBlackList ()
	Get type black list. More...

	setPreloadChilds ($a_val)
	Set preload childs. More...

	getPreloadChilds ()
	Get preload childs. More...

	getSuccessorNode ($a_node_id, $a_type="")
	Get successor node (currently only(!) based on lft/rgt tree values) More...

	getChildsOfNode ($a_parent_node_id)
	Get childs of node. More...

	getNodeId ($a_node)
	Get id for node. More...

	getNodeIconAlt ($a_node)
	Get node icon alt attribute. More...

	getRootNode ()
	Get root node. More...

	setRootId ($a_root)

	setPathOpen ($a_id)
	Set node path to be opened. More...

	getHTML ()
	Get HTML. More...

Public Member Functions inherited from ilExplorerBaseGUI
	__construct ($a_expl_id, $a_parent_obj, $a_parent_cmd)
	Constructor. More...

	setMainTemplate (ilTemplate $a_main_tpl=null)
	Set main template (that is responsible for adding js/css) More...

	getRootNode ()
	Get root node. More...

	getChildsOfNode ($a_parent_node_id)
	Get childs of node. More...

	getNodeContent ($a_node)
	Get content of a node. More...

	getNodeId ($a_node)
	Get id of a node. More...

	getNodeHref ($a_node)
	Get href for node. More...

	nodeHasVisibleChilds ($a_node)
	Node has childs? More...

	sortChilds ($a_childs, $a_parent_node_id)
	Sort childs. More...

	getNodeIcon ($a_node)
	Get node icon path. More...

	getNodeIconAlt ($a_node)
	Get node icon alt attribute. More...

	getNodeTarget ($a_node)
	Get node target (frame) attribute. More...

	getNodeOnClick ($a_node)
	Get node onclick attribute. More...

	isNodeVisible ($a_node)
	Is node visible? More...

	isNodeHighlighted ($a_node)
	Is node highlighted? More...

	isNodeClickable ($a_node)
	Is node clickable? More...

	getId ()
	Get id of explorer element. More...

	setSkipRootNode ($a_val)
	Set skip root node. More...

	getSkipRootNode ()
	Get skip root node. More...

	setAjax ($a_val)
	Set ajax. More...

	getAjax ()
	Get ajax. More...

	setSecondaryHighlightedNodes ($a_val)
	Set secondary (background) highlighted nodes. More...

	getSecondaryHighlightedNodes ()
	Get secondary (background) highlighted nodes. More...

	setNodeOpen ($a_id)
	Set node to be opened (additional custom opened node, not standard expand behaviour) More...

	setSelectMode ($a_postvar, $a_multi=false)
	Set select mode (to deactivate, pass an empty string as postvar) More...

	setNodeSelected ($a_id)
	Set node to be opened (additional custom opened node, not standard expand behaviour) More...

	setOfflineMode ($a_val)
	Set offline mode. More...

	getOfflineMode ()
	Get offline mode. More...

	handleCommand ()
	Handle explorer internal command. More...

	getContainerId ()
	Get container id. More...

	openNode ()
	Open node. More...

	closeNode ()
	Close node. More...

	getNodeAsync ()
	Get node asynchronously. More...

	beforeRendering ()
	Before rendering. More...

	getOnLoadCode ()
	Get on load code. More...

	getHTML ()
	Get HTML. More...

	renderNode ($a_node, $tpl)
	Render node. More...

	renderChilds ($a_node_id, $tpl)
	Render childs. More...

	getDomNodeIdForNodeId ($a_node_id)
	Get DOM node id for node id. More...

	getNodeIdForDomNodeId ($a_dom_node_id)
	Get node id for dom node id. More...

	listItemStart ($tpl, $a_node)
	List item start. More...

	listItemEnd ($tpl)
	List item end. More...

	listStart ($tpl)
	List start. More...

	listEnd ($tpl)
	List end. More...

	isNodeOnclickEnabled ()

	setNodeOnclickEnabled ($nodeOnclickEnabled)

	isEnableDnd ()

	setEnableDnd ($enable_dnd)
	Enable Drag & Drop functionality. More...

Protected Attributes
	$settings

	$obj_definition

	$lng

	$ctrl

	$access

	$rbacsystem

	$db

	$user

	$type_grps = array()

	$session_materials = array()

Protected Attributes inherited from ilTreeExplorerGUI
	$lng

	$tree = null

	$order_field = ""

	$order_field_numeric = false

	$type_white_list = array()

	$type_black_list = array()

	$childs = array()

	$preloaded = false

	$preload_childs = false

	$root_node_data = null

	$all_childs = array()

Protected Attributes inherited from ilExplorerBaseGUI
	$log

	$ctrl

	$tpl

	$skip_root_node = false

	$ajax = false

	$custom_open_nodes = array()

	$selected_nodes = array()

	$select_postvar = ""

	$offline_mode = false

	$sec_highl_nodes = array()

	$enable_dnd = false

Additional Inherited Members
Static Public Member Functions inherited from ilExplorerBaseGUI
static	getLocalExplorerJsPath ()
	Get local path of explorer js. More...

static	getLocalJsTreeJsPath ()
	Get local path of jsTree js. More...

static	createHTMLExportDirs ($a_target_dir)
	Create html export directories. More...

static	init ($a_main_tpl=null)
	Init JS. More...

Protected Member Functions inherited from ilTreeExplorerGUI
	preloadChilds ()
	Preload childs. More...

	getRootId ()

Protected Member Functions inherited from ilExplorerBaseGUI
	isNodeSelectable ($a_node)
	Is node selectable? More...

	getNodeToggleOnClick ($a_node)
	Get onclick attribute for node toggling. More...

	getSelectOnClick ($a_node)
	Get onclick attribute for selecting radio/checkbox. More...

	getJSTreePlugins ()

Static Protected Attributes inherited from ilExplorerBaseGUI
static	$js_tree_path = "./libs/bower/bower_components/jstree/jquery.jstree.js"

static	$js_expl_path = "./Services/UIComponent/Explorer2/js/Explorer2.js"

Detailed Description

Repository explorer GUI class.

Author: Alex Killing alex..nosp@m.kill.nosp@m.ing@g.nosp@m.mx.d.nosp@m.e

Version: $Id$

Todo:: : isClickable, top node id

Definition at line 16 of file class.ilRepositoryExplorerGUI.php.

Constructor & Destructor Documentation

◆ __construct()

ilRepositoryExplorerGUI::__construct	(	$a_parent_obj,
		$a_parent_cmd
	)

Constructor.

Definition at line 64 of file class.ilRepositoryExplorerGUI.php.

References $_GET, $DIC, $ilSetting, $n, $path, ilTreeExplorerGUI\$tree, $white, ilObject\_lookupObjId(), ilObject\_lookupType(), array, ilExplorerBaseGUI\setAjax(), ilTreeExplorerGUI\setOrderField(), ilTreeExplorerGUI\setPathOpen(), ilExplorerBaseGUI\setSkipRootNode(), settings(), ilTreeExplorerGUI\setTypeWhiteList(), and user().

     {
         global $DIC;
 
         $this->tree = $DIC->repositoryTree();
         $this->settings = $DIC->settings();
         $this->obj_definition = $DIC["objDefinition"];
         $this->lng = $DIC->language();
         $this->ctrl = $DIC->ctrl();
         $this->access = $DIC->access();
         $this->rbacsystem = $DIC->rbac()->system();
         $this->db = $DIC->database();
         $this->user = $DIC->user();
         $tree = $DIC->repositoryTree();
         $ilSetting = $DIC->settings();
         $objDefinition = $DIC["objDefinition"];
 
         $this->cur_ref_id = (int) $_GET["ref_id"];
 
         $this->top_node_id = 0;
         if ($ilSetting->get("rep_tree_limit_grp_crs") && $this->cur_ref_id > 0) {
             $path = $tree->getPathId($this->cur_ref_id);
             foreach ($path as $n) {
                 if ($top_node > 0) {
                     break;
                 }
                 if (in_array(
                     ilObject::_lookupType(ilObject::_lookupObjId($n)),
                     array("crs", "grp")
                 )) {
                     $this->top_node_id = $n;
                 }
             }
         }
         
         parent::__construct("rep_exp", $a_parent_obj, $a_parent_cmd, $tree);
 
         $this->setSkipRootNode(false);
         $this->setAjax(true);
         $this->setOrderField("title");
         if ($ilSetting->get("repository_tree_pres") == "" ||
             ($ilSetting->get("rep_tree_limit_grp_crs") && $this->top_node_id == 0)) {
             $this->setTypeWhiteList($objDefinition->getExplorerContainerTypes());
         } elseif ($ilSetting->get("repository_tree_pres") == "all_types") {
             $white = array();
             foreach ($objDefinition->getSubObjectsRecursively("root") as $rtype) {
                 if (/* $rtype["name"] != "itgr" && */ !$objDefinition->isSideBlock($rtype["name"])) {
                     $white[] = $rtype["name"];
                 }
             }
             $this->setTypeWhiteList($white);
         }
         if ((int) $_GET["ref_id"] > 0) {
             $this->setPathOpen((int) $_GET["ref_id"]);
         }
     }

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Member Function Documentation

◆ getChildsOfNode()

ilRepositoryExplorerGUI::getChildsOfNode ( $a_parent_node_id )

Get childs of node.

Parameters

Definition at line 490 of file class.ilRepositoryExplorerGUI.php.

References $rbacsystem, ilConditionHandler\_checkAllConditionsOfTarget(), ilObject\_lookupObjId(), and array.

     {
         $rbacsystem = $this->rbacsystem;
         
         if (!$rbacsystem->checkAccess("read", $a_parent_node_id)) {
             return array();
         }
 
         $obj_id = ilObject::_lookupObjId($a_parent_node_id);
         if (!ilConditionHandler::_checkAllConditionsOfTarget($a_parent_node_id, $obj_id)) {
             return array();
         }
 
         return parent::getChildsOfNode($a_parent_node_id);
     }

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◆ getNodeContent()

ilRepositoryExplorerGUI::getNodeContent ( $a_node )

Get node content.

Parameters

array

Returns

Definition at line 142 of file class.ilRepositoryExplorerGUI.php.

References $lng, $title, ilSessionAppointment\_appointmentToString(), ilSessionAppointment\_lookupAppointment(), ilTreeExplorerGUI\getNodeId(), and getRootNode().

     {
         $lng = $this->lng;
         
         $title = $a_node["title"];
                         
         if ($a_node["child"] == $this->getNodeId($this->getRootNode())) {
             if ($title == "ILIAS") {
                 $title = $lng->txt("repository");
             }
         } elseif ($a_node["type"] == "sess" &&
             !trim($title)) {
             // #14367 - see ilObjSessionListGUI
             include_once('./Modules/Session/classes/class.ilSessionAppointment.php');
             $app_info = ilSessionAppointment::_lookupAppointment($a_node["obj_id"]);
             $title = ilSessionAppointment::_appointmentToString($app_info['start'], $app_info['end'], $app_info['fullday']);
         }
         
         return $title;
     }

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◆ getNodeHref()

ilRepositoryExplorerGUI::getNodeHref ( $a_node )

Get href for node.

Parameters

mixed $a_node node object/array

Returns: string href attribute

Definition at line 218 of file class.ilRepositoryExplorerGUI.php.

References $_GET, $ctrl, $ilCtrl, ilLink\_getStaticLink(), and array.

     {
         $ilCtrl = $this->ctrl;
 
         switch ($a_node["type"]) {
             case "root":
                 $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $a_node["child"]);
                 $link = $ilCtrl->getLinkTargetByClass("ilrepositorygui", "");
                 $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $_GET["ref_id"]);
                 return $link;
 
             case "cat":
                 $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $a_node["child"]);
                 $link = $ilCtrl->getLinkTargetByClass("ilrepositorygui", "");
                 $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $_GET["ref_id"]);
                 return $link;
 
             case "catr":
                 $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $a_node["child"]);
                 $link = $ilCtrl->getLinkTargetByClass("ilrepositorygui", "redirect");
                 $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $_GET["ref_id"]);
                 return $link;
 
             case "grp":
                 $ilCtrl->setParameterByClass("ilobjgroupgui", "ref_id", $a_node["child"]);
                 $link = $ilCtrl->getLinkTargetByClass(array("ilrepositorygui", "ilobjgroupgui"), "");
                 $ilCtrl->setParameterByClass("ilobjgroupgui", "ref_id", $_GET["ref_id"]);
                 return $link;
 
             case "grpr":
                 $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $a_node["child"]);
                 $link = $ilCtrl->getLinkTargetByClass("ilrepositorygui", "redirect");
                 $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $_GET["ref_id"]);
                 return $link;
 
             case "crs":
                 $ilCtrl->setParameterByClass("ilobjcoursegui", "ref_id", $a_node["child"]);
                 $link = $ilCtrl->getLinkTargetByClass(array("ilrepositorygui", "ilobjcoursegui"), "view");
                 $ilCtrl->setParameterByClass("ilobjcoursegui", "ref_id", $_GET["ref_id"]);
                 return $link;
                 
             case "crsr":
                 $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $a_node["child"]);
                 $link = $ilCtrl->getLinkTargetByClass("ilrepositorygui", "redirect");
                 $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $_GET["ref_id"]);
                 return $link;
 
             case 'rcrs':
                 $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $a_node["child"]);
                 $link = $ilCtrl->getLinkTargetByClass("ilrepositorygui", "infoScreen");
                 $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $_GET["ref_id"]);
                 return $link;
 
             case 'prg':
                 $ilCtrl->setParameterByClass("ilobjstudyprogrammegui", "ref_id", $a_node["child"]);
                 $link = $ilCtrl->getLinkTargetByClass(array("ilrepositorygui", "ilobjstudyprogrammegui"), "view");
                 $ilCtrl->setParameterByClass("ilobjstudyprogrammegui", "ref_id", $_GET["ref_id"]);
                 return $link;
 
             default:
                 include_once('./Services/Link/classes/class.ilLink.php');
                 return ilLink::_getStaticLink($a_node["child"], $a_node["type"], true);
 
         }
     }

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◆ getNodeIcon()

ilRepositoryExplorerGUI::getNodeIcon ( $a_node )

Get node icon.

Parameters

array

Returns

Definition at line 169 of file class.ilRepositoryExplorerGUI.php.

References ilObject\_getIcon(), and ilObject\_lookupObjId().

     {
         $obj_id = ilObject::_lookupObjId($a_node["child"]);
         return ilObject::_getIcon($obj_id, "tiny", $a_node["type"]);
     }

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◆ getNodeIconAlt()

ilRepositoryExplorerGUI::getNodeIconAlt ( $a_node )

Get node icon alt text.

Parameters

array node array

Returns: string alt text

Definition at line 181 of file class.ilRepositoryExplorerGUI.php.

References $lng, $title, ilTreeExplorerGUI\getNodeId(), and getRootNode().

     {
         $lng = $this->lng;
 
         if ($a_node["child"] == $this->getNodeId($this->getRootNode())) {
             $title = $a_node["title"];
             if ($title == "ILIAS") {
                 $title = $lng->txt("repository");
             }
             return $lng->txt("icon") . " " . $title;
         }
 
         
         return parent::getNodeIconAlt($a_node);
     }

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◆ getRootNode()

ilRepositoryExplorerGUI::getRootNode ( )

Get root node.

Parameters

Definition at line 127 of file class.ilRepositoryExplorerGUI.php.

References ilTreeExplorerGUI\getTree().

Referenced by getNodeContent(), getNodeIconAlt(), and isNodeHighlighted().

     {
         if ($this->top_node_id > 0) {
             return $this->getTree()->getNodeData($this->top_node_id);
         } else {
             return parent::getRootNode();
         }
     }

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◆ isNodeClickable()

ilRepositoryExplorerGUI::isNodeClickable ( $a_node )

Is node clickable?

Parameters

mixed $a_node node object/array

Returns: boolean node clickable true/false

Definition at line 512 of file class.ilRepositoryExplorerGUI.php.

References $access, $db, $ilDB, $ilUser, $query, $rbacsystem, $res, $row, ilTreeExplorerGUI\$tree, $user, ilConditionHandler\_checkAllConditionsOfTarget(), ilContainerReferenceAccess\_isAccessible(), ilObject\_lookupObjectId(), ilObject\_lookupObjId(), ilObjGlossary\_lookupOnline(), and ilDBConstants\FETCHMODE_OBJECT.

     {
         $rbacsystem = $this->rbacsystem;
         $tree = $this->tree;
         $ilDB = $this->db;
         $ilUser = $this->user;
         $ilAccess = $this->access;
 
         $obj_id = ilObject::_lookupObjId($a_node["child"]);
         if (!ilConditionHandler::_checkAllConditionsOfTarget($a_node["child"], $obj_id)) {
             return false;
         }
 
         switch ($a_node["type"]) {
             case 'tst':
                 if (!$rbacsystem->checkAccess("read", $a_node["child"])) {
                     return false;
                 }
 
                 $query = sprintf("SELECT * FROM tst_tests WHERE obj_fi=%s", $obj_id);
                 $res = $ilDB->query($query);
                 while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
                     return (bool) $row->complete;
                 }
                 return false;
 
             case 'svy':
                 if (!$rbacsystem->checkAccess("read", $a_node["child"])) {
                     return false;
                 }
 
                 $query = sprintf("SELECT * FROM svy_svy WHERE obj_fi=%s", $obj_id);
                 $res = $ilDB->query($query);
                 while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
                     return (bool) $row->complete;
                 }
                 return false;
 
             // media pools can only be edited
             case "mep":
                 if ($rbacsystem->checkAccess("read", $a_node["child"])) {
                     return true;
                 } else {
                     return false;
                 }
                 break;
             case 'grpr':
             case 'crsr':
             case 'catr':
                 include_once('./Services/ContainerReference/classes/class.ilContainerReferenceAccess.php');
                 return ilContainerReferenceAccess::_isAccessible($a_node["child"]);
             
             case 'prg':
                     return $rbacsystem->checkAccess("read", $a_node["child"]);
 
             // all other types are only clickable, if read permission is given
             default:
                 if ($rbacsystem->checkAccess("read", $a_node["child"])) {
                     // check if lm is online
                     if ($a_node["type"] == "lm") {
                         include_once("./Modules/LearningModule/classes/class.ilObjLearningModule.php");
                         $lm_obj = new ilObjLearningModule($a_node["child"]);
                         if ((!$lm_obj->getOnline()) && (!$rbacsystem->checkAccess('write', $a_node["child"]))) {
                             return false;
                         }
                     }
                     // check if fblm is online
                     if ($a_node["type"] == "htlm") {
                         include_once("./Modules/HTMLLearningModule/classes/class.ilObjFileBasedLM.php");
                         $lm_obj = new ilObjFileBasedLM($a_node["child"]);
                         if ((!$lm_obj->getOnline()) && (!$rbacsystem->checkAccess('write', $a_node["child"]))) {
                             return false;
                         }
                     }
                     // check if fblm is online
                     if ($a_node["type"] == "sahs") {
                         include_once("./Modules/ScormAicc/classes/class.ilObjSAHSLearningModule.php");
                         $lm_obj = new ilObjSAHSLearningModule($a_node["child"]);
                         if ((!$lm_obj->getOnline()) && (!$rbacsystem->checkAccess('write', $a_node["child"]))) {
                             return false;
                         }
                     }
                     // check if glossary is online
                     if ($a_node["type"] == "glo") {
                         $obj_id = ilObject::_lookupObjectId($a_node["child"]);
                         include_once("./Modules/Glossary/classes/class.ilObjGlossary.php");
                         if ((!ilObjGlossary::_lookupOnline($obj_id)) &&
                             (!$rbacsystem->checkAccess('write', $a_node["child"]))) {
                             return false;
                         }
                     }
 
                     return true;
                 } else {
                     return false;
                 }
                 break;
         }
     }

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◆ isNodeHighlighted()

ilRepositoryExplorerGUI::isNodeHighlighted ( $a_node )

Is node highlighted?

Parameters

mixed $a_node node object/array

Returns: boolean node visible true/false

Definition at line 203 of file class.ilRepositoryExplorerGUI.php.

References $_GET, ilTreeExplorerGUI\getNodeId(), and getRootNode().

     {
         if ($a_node["child"] == $_GET["ref_id"] ||
             ($_GET["ref_id"] == "" && $a_node["child"] == $this->getNodeId($this->getRootNode()))) {
             return true;
         }
         return false;
     }

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◆ isNodeVisible()

ilRepositoryExplorerGUI::isNodeVisible ( $a_node )

Is node visible.

Parameters

Definition at line 290 of file class.ilRepositoryExplorerGUI.php.

References $access, $ilSetting, $settings, ilTreeExplorerGUI\$tree, and ilEventItems\_getItemsOfContainer().

     {
         $ilAccess = $this->access;
         $tree = $this->tree;
         $ilSetting = $this->settings;
 
         if (!$ilAccess->checkAccess('visible', '', $a_node["child"])) {
             return false;
         }
         
         $is_course = false;
         $container_parent_id = $tree->checkForParentType($a_node["child"], 'grp');
         if (!$container_parent_id) {
             $is_course = true;
             $container_parent_id = $tree->checkForParentType($a_node["child"], 'crs');
         }
         if ($container_parent_id) {
             // do not display session materials for container course/group
             if ($ilSetting->get("repository_tree_pres")  == "all_types" && $container_parent_id != $a_node["child"]) {
                 // get container event items only once
                 if (!isset($this->session_materials[$container_parent_id])) {
                     include_once './Modules/Session/classes/class.ilEventItems.php';
                     $this->session_materials[$container_parent_id] = ilEventItems::_getItemsOfContainer($container_parent_id);
                 }
                 if (in_array($a_node["child"], $this->session_materials[$container_parent_id])) {
                     return false;
                 }
             }
         }
         
         return true;
     }

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◆ sortChilds()

ilRepositoryExplorerGUI::sortChilds	(	$a_childs,
		$a_parent_node_id
	)

Sort childs.

Parameters

array	$a_childs	array of child nodes
mixed	$a_parent_node	parent node

Returns: array array of childs nodes

Definition at line 331 of file class.ilRepositoryExplorerGUI.php.

References $access, ilTreeExplorerGUI\$childs, $obj_definition, $t, ilContainerSorting\_getInstance(), ilObject\_lookupObjId(), ilObject\_lookupType(), array, and ilObjectActivation\getItemsByItemGroup().

     {
         $objDefinition = $this->obj_definition;
         $ilAccess = $this->access;
 
         $parent_obj_id = ilObject::_lookupObjId($a_parent_node_id);
         if ($parent_obj_id > 0) {
             $parent_type = ilObject::_lookupType($parent_obj_id);
         } else {
             $parent_type  = "dummy";
             $this->type_grps["dummy"] = array("root" => "dummy");
         }
 
         // alex: if this is not initialized, things are messed up
         // see bug 0015978
         $this->type_grps = array();
 
         if (empty($this->type_grps[$parent_type])) {
             $this->type_grps[$parent_type] =
                 $objDefinition->getGroupedRepositoryObjectTypes($parent_type);
         }
 
         // #14465 - item groups
         include_once('./Services/Object/classes/class.ilObjectActivation.php');
         $group = array();
         $igroup = array(); // used for item groups, see bug #0015978
         $in_any_group = array();
         foreach ($a_childs as $child) {
             // item group: get childs
             if ($child["type"] == "itgr") {
                 $g = $child["child"];
                 $items = ilObjectActivation::getItemsByItemGroup($g);
                 if ($items) {
                     // add item group ref id to item group block
                     $this->type_grps[$parent_type]["itgr"]["ref_ids"][] = $g;
 
                     // #16697 - check item group permissions
                     $may_read = $ilAccess->checkAccess('read', '', $g);
                     
                     // see bug #0015978
                     if ($may_read) {
                         include_once("./Services/Container/classes/class.ilContainerSorting.php");
                         $items = ilContainerSorting::_getInstance($parent_obj_id)->sortSubItems('itgr', $child["obj_id"], $items);
                     }
 
                     foreach ($items as $item) {
                         $in_any_group[] = $item["child"];
                         
                         if ($may_read) {
                             $igroup[$g][] = $item;
                             $group[$g][] = $item;
                         }
                     }
                 }
             }
             // type group
             else {
                 $g = $objDefinition->getGroupOfObj($child["type"]);
                 if ($g == "") {
                     $g = $child["type"];
                 }
                 $group[$g][] = $child;
             }
         }
         
         $in_any_group = array_unique($in_any_group);
 
         // custom block sorting?
         include_once("./Services/Container/classes/class.ilContainerSorting.php");
         $sort = ilContainerSorting::_getInstance($parent_obj_id);
         $block_pos = $sort->getBlockPositions();
         if (is_array($block_pos) && count($block_pos) > 0) {
             $tmp = $this->type_grps[$parent_type];
 
             $this->type_grps[$parent_type] = array();
             foreach ($block_pos as $block_type) {
                 // type group
                 if (!is_numeric($block_type) &&
                     array_key_exists($block_type, $tmp)) {
                     $this->type_grps[$parent_type][$block_type] = $tmp[$block_type];
                     unset($tmp[$block_type]);
                 }
                 // item group
                 else {
                     // using item group ref id directly
                     $this->type_grps[$parent_type][$block_type] = array();
                 }
             }
 
             // append missing
             if (sizeof($tmp)) {
                 foreach ($tmp as $block_type => $grp) {
                     $this->type_grps[$parent_type][$block_type] = $grp;
                 }
             }
 
             unset($tmp);
         }
 
         $childs = array();
         $done = array();
 
         foreach ($this->type_grps[$parent_type] as $t => $g) {
             // type group
             if (is_array($group[$t])) {
                 // see bug #0015978
                 // custom sorted igroups
                 if (is_array($igroup[$t])) {
                     foreach ($igroup[$t] as $k => $item) {
                         if (!in_array($item["child"], $done)) {
                             $childs[] = $item;
                             $done[] = $item["child"];
                         }
                     }
                 } else {
                     // do we have to sort this group??
                     include_once("./Services/Container/classes/class.ilContainer.php");
                     include_once("./Services/Container/classes/class.ilContainerSorting.php");
                     $sort = ilContainerSorting::_getInstance($parent_obj_id);
                     $group = $sort->sortItems($group);
 
                     // need extra session sorting here
                     if ($t == "sess") {
                     }
 
                     foreach ($group[$t] as $k => $item) {
                         if (!in_array($item["child"], $done) &&
                             !in_array($item["child"], $in_any_group)) { // #16697
                             $childs[] = $item;
                             $done[] = $item["child"];
                         }
                     }
                 }
             }
             // item groups (if not custom block sorting)
             elseif ($t == "itgr" &&
                 is_array($g["ref_ids"])) {
                 foreach ($g["ref_ids"] as $ref_id) {
                     if (isset($group[$ref_id])) {
                         foreach ($group[$ref_id] as $k => $item) {
                             if (!in_array($item["child"], $done)) {
                                 $childs[] = $item;
                                 $done[] = $item["child"];
                             }
                         }
                     }
                 }
             }
         }
 
         return $childs;
     }