Repository explorer GUI class. More...

Inheritance diagram for ilRepositoryExplorerGUI:

Collaboration diagram for ilRepositoryExplorerGUI:

Public Member Functions
	getRootNode ()

	getNodeContent ($a_node)

	getNodeIcon ($a_node)

	getNodeIconAlt ($a_node)

	isNodeHighlighted ($a_node)

	getNodeHref ($a_node)

	isNodeVisible ($a_node)

	sortChilds (array $a_childs, $a_parent_node_id)

	nodeHasVisibleChilds ($a_node)

	getChildsOfNode ($a_parent_node_id)

	isNodeClickable ($a_node)

Public Member Functions inherited from ilTreeExplorerGUI
	__construct (string $a_expl_id, $a_parent_obj, string $a_parent_cmd, ilTree $a_tree, string $a_node_parameter_name="node_id")

	getTree ()

	setOrderField (string $a_val, bool $a_numeric=false)

	getOrderField ()

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

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

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

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

	setPreloadChilds (bool $a_val)

	getPreloadChilds ()

	getSuccessorNode ( $a_node_id, string $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 ($new=false)
	Get HTML. More...

	getChildren ($record, $environment=null)
	Get a list of records (that list can also be empty). More...

	build (\ILIAS\UI\Component\Tree\Node\Factory $factory, $record, $environment=null)

	getTreeLabel ()

	getTreeComponent ()

	toggleExplorerNodeState ()
	Should be called by an ilCtrl-enabled command class if a tree node toggle action should be processed. More...

Public Member Functions inherited from ilExplorerBaseGUI
	setChildLimit (int $a_val)

	getChildLimit ()

	setSearchTerm (string $a_val)

	getSearchTerm ()

	setMainTemplate (ilGlobalTemplateInterface $a_main_tpl=null)

	getRootNode ()
	Get root node. More...

	getChildsOfNode ($a_parent_node_id)
	Get children 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 children Please note that this standard method may not be optimal depending on what a derived class does in isNodeVisible. More...

	sortChilds (array $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 (bool $a_val)

	getSkipRootNode ()

	setAjax (bool $a_val)

	getAjax ()

	setSecondaryHighlightedNodes (array $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 (string $a_postvar, bool $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 (bool $a_val)

	getOfflineMode ()

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

	getContainerId ()

	openNode ()
	Open node. More...

	closeNode ()
	Close node. More...

	getNodeAsync ()
	Get node asynchronously. More...

	beforeRendering ()
	Before rendering. More...

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

	getHTML ()

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

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

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

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

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

	listItemEnd (ilTemplate $tpl)

	listStart (ilTemplate $tpl)

	listEnd (ilTemplate $tpl)

	isNodeOnclickEnabled ()

	setNodeOnclickEnabled (bool $nodeOnclickEnabled)

	isEnableDnd ()

	setEnableDnd (bool $enable_dnd)

Public Member Functions inherited from ILIAS\UI\Component\Tree\TreeRecursion
	build (Node\Factory $factory, $record, $environment=null)
	Build and return a Node. More...

Static Public Member Functions
static	getTopNodeForRefId (int $ref_id)

Static Public Member Functions inherited from ilExplorerBaseGUI
static	getLocalExplorerJsPath ()

static	getLocalJsTreeJsPath ()

static	getLocalJsTreeCssPath ()

static	createHTMLExportDirs (string $a_target_dir)

static	init (ilGlobalTemplateInterface $a_main_tpl=null)

Protected Member Functions
	getParentCourseOrGroup (int $node_id)

Protected Member Functions inherited from ilTreeExplorerGUI
	preloadChilds ()

	matches ($node)
	Does a node match a search term (or is search term empty) More...

	getRootId ()

	createNode (\ILIAS\UI\Component\Tree\Node\Factory $factory, $record)
	Creates at tree node, can be overwritten in derivatives if another node type should be used. More...

	getNodeStateToggleCmdClasses ($record)
	Should return an array of ilCtrl-enabled command classes which should be used to build the URL for the expand/collapse actions applied on a tree node. More...

	render ()

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...

	isNodeOpen ($node_id)
	Get all open nodes. More...

	getJSTreePlugins ()

	isNodeRequested (string $a_node_id)

Protected Attributes
ilSetting	$settings

ilObjectDefinition	$obj_definition

ilAccessHandler	$access

ilRbacSystem	$rbacsystem

ilDBInterface	$db

ilObjUser	$user

array	$type_grps = []

array	$session_materials = []

array	$parent_node_id = []

array	$node_data = []

StandardGUIRequest	$request

int	$cur_ref_id = 0

int	$top_node_id

Protected Attributes inherited from ilTreeExplorerGUI
ilLanguage	$lng

Psr Http Message ServerRequestInterface	$httpRequest

ilTree	$tree = null

string	$tree_label = ""

string	$order_field = ""

bool	$order_field_numeric = false

array	$type_white_list = array()

array	$type_black_list = array()

array	$childs = array()

bool	$preloaded = false

bool	$preload_childs = false

array	$root_node_data = null

array	$all_childs = array()

	$root_id = 0

ILIAS DI UIServices	$ui

Protected Attributes inherited from ilExplorerBaseGUI
string	$node_parameter_name

ilLogger	$log

ilCtrl	$ctrl

ilGlobalTemplateInterface	$tpl

bool	$skip_root_node = false

bool	$ajax = false

array	$custom_open_nodes = array()

array	$selected_nodes = array()

string	$select_postvar = ""

bool	$offline_mode = false

array	$sec_highl_nodes = array()

bool	$enable_dnd = false

string	$search_term = ""

array	$open_nodes = []

ilSessionIStorage	$store

bool	$select_multi = false

	$parent_obj

int	$child_limit = 0

string	$parent_cmd = ''

string	$requested_exp_cmd = ""

string	$requested_exp_cont = ""

string	$requested_searchterm = ""

string	$requested_node_id = ""

string	$id

Additional Inherited Members
Static Protected Attributes inherited from ilExplorerBaseGUI
static string	$js_tree_path = "./node_modules/jstree/dist/jstree.js"

static string	$js_tree_path_css = "./node_modules/jstree/dist/themes/default/style.min.css"

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

Detailed Description

Repository explorer GUI class.

Author: Alexander Killing killi.nosp@m.ng@l.nosp@m.eifos.nosp@m..de

Todo:: : isClickable, top node id

Definition at line 27 of file class.ilRepositoryExplorerGUI.php.

Member Function Documentation

◆ getChildsOfNode()

ilRepositoryExplorerGUI::getChildsOfNode ( $a_parent_node_id )

Definition at line 420 of file class.ilRepositoryExplorerGUI.php.

References $c, ilTreeExplorerGUI\$childs, $rbacsystem, ilConditionHandler\_checkAllConditionsOfTarget(), ilObject\_lookupObjId(), and ilRbacSystem\checkAccess().

                                                       : array
     {
         $rbacsystem = $this->rbacsystem;
 
         if (!$rbacsystem->checkAccess("read", $a_parent_node_id)) {
             return [];
         }
 
         $obj_id = ilObject::_lookupObjId($a_parent_node_id);
         if (!ilConditionHandler::_checkAllConditionsOfTarget($a_parent_node_id, $obj_id)) {
             return [];
         }
 
         $childs = parent::getChildsOfNode($a_parent_node_id);
 
         foreach ($childs as $c) {
             $this->parent_node_id[$c["child"]] = $a_parent_node_id;
             $this->node_data[$c["child"]] = $c;
         }
 
         return $childs;
     }

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◆ getNodeContent()

ilRepositoryExplorerGUI::getNodeContent ( $a_node )

Definition at line 107 of file class.ilRepositoryExplorerGUI.php.

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

Referenced by getNodeIconAlt().

                                            : string
     {
         $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
             $app_info = ilSessionAppointment::_lookupAppointment($a_node["obj_id"]);
             $title = ilSessionAppointment::_appointmentToString($app_info['start'], $app_info['end'], (bool) $app_info['fullday']);
         }
         return $title;
     }

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◆ getNodeHref()

ilRepositoryExplorerGUI::getNodeHref ( $a_node )

Definition at line 157 of file class.ilRepositoryExplorerGUI.php.

References ilExplorerBaseGUI\$ctrl, ilLink\_getStaticLink(), and ilCtrl\setParameterByClass().

                                         : string
     {
         $ilCtrl = $this->ctrl;
 
         switch ($a_node["type"]) {
             case "cat":
             case "root":
                 $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $a_node["child"]);
                 $link = $ilCtrl->getLinkTargetByClass("ilrepositorygui", "");
                 $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $this->cur_ref_id);
                 return $link;
 
             case "grpr":
             case "crsr":
             case "prgr":
             case "catr":
                 $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $a_node["child"]);
                 $link = $ilCtrl->getLinkTargetByClass("ilrepositorygui", "redirect");
                 $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $this->cur_ref_id);
                 return $link;
 
             case "grp":
                 $ilCtrl->setParameterByClass("ilobjgroupgui", "ref_id", $a_node["child"]);
                 $link = $ilCtrl->getLinkTargetByClass(["ilrepositorygui", "ilobjgroupgui"], "");
                 $ilCtrl->setParameterByClass("ilobjgroupgui", "ref_id", $this->cur_ref_id);
                 return $link;
 
             case "crs":
                 $ilCtrl->setParameterByClass("ilobjcoursegui", "ref_id", $a_node["child"]);
                 $link = $ilCtrl->getLinkTargetByClass(["ilrepositorygui", "ilobjcoursegui"], "view");
                 $ilCtrl->setParameterByClass("ilobjcoursegui", "ref_id", $this->cur_ref_id);
                 return $link;
 
             case 'rcrs':
                 $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $a_node["child"]);
                 $link = $ilCtrl->getLinkTargetByClass("ilrepositorygui", "infoScreen");
                 $ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $this->cur_ref_id);
                 return $link;
 
             case 'prg':
                 $ilCtrl->setParameterByClass("ilobjstudyprogrammegui", "ref_id", $a_node["child"]);
                 $link = $ilCtrl->getLinkTargetByClass(["ilrepositorygui", "ilobjstudyprogrammegui"], "view");
                 $ilCtrl->setParameterByClass("ilobjstudyprogrammegui", "ref_id", $this->cur_ref_id);
                 return $link;
 
             default:
                 return ilLink::_getStaticLink($a_node["child"], $a_node["type"], true);
 
         }
     }

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◆ getNodeIcon()

ilRepositoryExplorerGUI::getNodeIcon ( $a_node )

Definition at line 126 of file class.ilRepositoryExplorerGUI.php.

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

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

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◆ getNodeIconAlt()

ilRepositoryExplorerGUI::getNodeIconAlt ( $a_node )

Definition at line 132 of file class.ilRepositoryExplorerGUI.php.

References ilTreeExplorerGUI\$lng, getNodeContent(), ilTreeExplorerGUI\getNodeId(), getRootNode(), and ilLanguage\txt().

                                            : string
     {
         $lng = $this->lng;
 
         if ($a_node["child"] == $this->getNodeId($this->getRootNode())) {
             $title = $a_node["title"];
             if ($title === "ILIAS") {
                 $title = $lng->txt("repository");
             }
             return $title;
         }
 
         $lng = $this->lng;
         return $lng->txt("obj_" . $a_node["type"]) . ": " . $this->getNodeContent($a_node);
     }

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◆ getParentCourseOrGroup()

ilRepositoryExplorerGUI::getParentCourseOrGroup ( int $node_id )

protected

Definition at line 242 of file class.ilRepositoryExplorerGUI.php.

References $parent_node_id.

Referenced by isNodeVisible().

                                                            : int
     {
         $current_node_id = $node_id;
         while (isset($this->parent_node_id[$current_node_id])) {
             $parent_node_id = $this->parent_node_id[$current_node_id];
             if (isset($this->node_data[$parent_node_id]) && in_array($this->node_data[$parent_node_id]["type"], ["grp", "crs"])) {
                 return $parent_node_id;
             }
             $current_node_id = $parent_node_id;
         }
         return 0;
     }

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◆ getRootNode()

ilRepositoryExplorerGUI::getRootNode ( )

Definition at line 96 of file class.ilRepositoryExplorerGUI.php.

References ilTreeExplorerGUI\getTree().

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

     {
         if ($this->top_node_id > 0) {
             $root_node = $this->getTree()->getNodeData($this->top_node_id);
         } else {
             $root_node = parent::getRootNode();
         }
         $this->node_data[$root_node["child"]] = $root_node;
         return $root_node;
     }

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◆ getTopNodeForRefId()

static ilRepositoryExplorerGUI::getTopNodeForRefId ( int $ref_id )

static

Definition at line 539 of file class.ilRepositoryExplorerGUI.php.

References $DIC, $path, ilTreeExplorerGUI\$tree, ilObject\_lookupObjId(), ilObject\_lookupType(), and ilTree\getPathId().

Referenced by ILIAS\Repository\Provider\RepositoryMainBarProvider\getStaticSubItems().

                                                           : int
     {
         global $DIC;
 
         $setting = $DIC->settings();
         $tree = $DIC->repositoryTree();
 
         $top_node = 0;
         if ($ref_id > 0 && $setting->get("rep_tree_limit_grp_crs")) {
             $path = $tree->getPathId($ref_id);
             foreach ($path as $n) {
                 if ($top_node > 0) {
                     break;
                 }
                 if (in_array(
                     ilObject::_lookupType(ilObject::_lookupObjId($n)),
                     ["crs", "grp"]
                 )) {
                     $top_node = $n;
                 }
             }
         }
         return $top_node;
     }

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◆ isNodeClickable()

ilRepositoryExplorerGUI::isNodeClickable ( $a_node )

Definition at line 443 of file class.ilRepositoryExplorerGUI.php.

References $db, $ilDB, $query, $rbacsystem, $res, ilConditionHandler\_checkAllConditionsOfTarget(), ilContainerReferenceAccess\_isAccessible(), ilObject\_lookupObjectId(), ilObject\_lookupObjId(), ilObjGlossary\_lookupOnline(), ilRbacSystem\checkAccess(), and ilDBConstants\FETCHMODE_OBJECT.

                                             : bool
     {
         $rbacsystem = $this->rbacsystem;
         $ilDB = $this->db;
 
         $obj_id = ilObject::_lookupObjId($a_node["child"]);
         if (
             !ilConditionHandler::_checkAllConditionsOfTarget($a_node["child"], $obj_id)
             && !$rbacsystem->checkAccess('write', $a_node["child"])
         ) {
             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", $a_node["child"])) {
                     return true;
                 }
                 return false;
             case 'grpr':
             case 'crsr':
             case 'catr':
                 return ilContainerReferenceAccess::_isAccessible($a_node["child"]);
 
             case 'prg':
                     return $rbacsystem->checkAccess("read", $a_node["child"]);
 
             case 'crs':
             case 'grp':
                 return $rbacsystem->checkAccess("read", $a_node["child"]) ||
                     $rbacsystem->checkAccess("join", $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") {
                         $lm_obj = new ilObjLearningModule($a_node["child"]);
                         if (($lm_obj->getOfflineStatus()) && (!$rbacsystem->checkAccess('write', $a_node["child"]))) {
                             return false;
                         }
                     }
                     // check if fblm is online
                     if ($a_node["type"] === "htlm") {
                         $lm_obj = new ilObjFileBasedLM($a_node["child"]);
                         if (($lm_obj->getOfflineStatus()) && (!$rbacsystem->checkAccess('write', $a_node["child"]))) {
                             return false;
                         }
                     }
                     // check if fblm is online
                     if ($a_node["type"] === "sahs") {
                         $lm_obj = new ilObjSAHSLearningModule($a_node["child"]);
                         if (($lm_obj->getOfflineStatus()) && (!$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"]);
                         if ((!ilObjGlossary::_lookupOnline($obj_id)) &&
                             (!$rbacsystem->checkAccess('write', $a_node["child"]))) {
                             return false;
                         }
                     }
 
                     return true;
                 }
                 return false;
         }
     }

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◆ isNodeHighlighted()

ilRepositoryExplorerGUI::isNodeHighlighted ( $a_node )

Definition at line 148 of file class.ilRepositoryExplorerGUI.php.

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

                                               : bool
     {
         if ((int) $a_node["child"] === $this->cur_ref_id ||
             ($this->cur_ref_id === 0 && (int) $a_node["child"] === (int) $this->getNodeId($this->getRootNode()))) {
             return true;
         }
         return false;
     }

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◆ isNodeVisible()

ilRepositoryExplorerGUI::isNodeVisible ( $a_node )

Definition at line 208 of file class.ilRepositoryExplorerGUI.php.

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

                                           : bool
     {
         $ilAccess = $this->access;
         $tree = $this->tree;
         $ilSetting = $this->settings;
 
         if (!$ilAccess->checkAccess('visible', '', $a_node["child"])) {
             return false;
         }
 
         if ($ilSetting->get("repository_tree_pres") === "all_types") {
             /*$container_parent_id = $tree->checkForParentType($a_node["child"], 'grp');
             if (!$container_parent_id) {
                 $container_parent_id = $tree->checkForParentType($a_node["child"], 'crs');
             }*/
             // see #21215
             $container_parent_id = $this->getParentCourseOrGroup($a_node["child"]);
             if ($container_parent_id > 0) {
                 // do not display session materials for container course/group
                 if ($container_parent_id !== (int) $a_node["child"]) {
                     // get container event items only once
                     if (!isset($this->session_materials[$container_parent_id])) {
                         $this->session_materials[$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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◆ nodeHasVisibleChilds()

ilRepositoryExplorerGUI::nodeHasVisibleChilds ( $a_node )

Parameters

object | array $a_node

Returns: bool

Definition at line 412 of file class.ilRepositoryExplorerGUI.php.

                                                  : bool
     {
         if (!$this->obj_definition->isContainer($a_node["type"] ?? "")) {
             return false;
         }
         return parent::nodeHasVisibleChilds($a_node);
     }

◆ sortChilds()

ilRepositoryExplorerGUI::sortChilds	(	array	$a_childs,
			$a_parent_node_id
	)

Definition at line 256 of file class.ilRepositoryExplorerGUI.php.

References $access, ilTreeExplorerGUI\$childs, $obj_definition, $ref_id, ilContainerSorting\_getInstance(), ilSessionAppointment\_lookupAppointment(), ilObject\_lookupObjId(), ilObject\_lookupType(), ilObjectActivation\getItemsByItemGroup(), and ilArrayUtil\sortArray().

                                                                   : array
     {
         $objDefinition = $this->obj_definition;
         $ilAccess = $this->access;
 
         $parent_obj_id = ilObject::_lookupObjId((int) $a_parent_node_id);
         if ($parent_obj_id > 0) {
             $parent_type = ilObject::_lookupType($parent_obj_id);
         } else {
             $parent_type = "dummy";
             $this->type_grps["dummy"] = ["root" => "dummy"];
         }
 
         // alex: if this is not initialized, things are messed up
         // see bug 0015978
         $this->type_grps = [];
 
         $this->type_grps[$parent_type] =
             $objDefinition::getGroupedRepositoryObjectTypes($parent_type);
 
         // #14465 - item groups
         $group = [];
         $igroup = []; // used for item groups, see bug #0015978
         $in_any_group = [];
         foreach ($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) {
                         $items = ilContainerSorting::_getInstance($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?
         $sort = ilContainerSorting::_getInstance($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] = [];
             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] = [];
                 }
             }
 
             // append missing
             if (count($tmp)) {
                 foreach ($tmp as $block_type => $grp) {
                     $this->type_grps[$parent_type][$block_type] = $grp;
                 }
             }
 
             unset($tmp);
         }
 
         $childs = [];
         $done = [];
 
         foreach ($this->type_grps[$parent_type] as $t => $g) {
             // type group
             if (isset($group[$t]) && is_array($group[$t])) {
                 // see bug #0015978
                 // custom sorted igroups
                 if (isset($igroup[$t]) && is_array($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??
                     $sort = ilContainerSorting::_getInstance($parent_obj_id);
                     $group = $sort->sortItems($group);
 
                     // need extra session sorting here
                     if ($t === "sess") {
                         foreach ($group[$t] as $k => $v) {
                             $app_info = ilSessionAppointment::_lookupAppointment($v["obj_id"]);
                             $group[$t][$k]["start"] = $app_info["start"];
                         }
                         $group[$t] = ilArrayUtil::sortArray($group[$t], 'start', 'asc', true, false);
                     }
 
                     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" &&
                 isset($g["ref_ids"]) &&
                 is_array($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;
     }