Explorer for selecting repository items. More...

Inheritance diagram for ilRepositorySelectorExplorerGUI:

Collaboration diagram for ilRepositorySelectorExplorerGUI:

Public Member Functions
	__construct ( $a_parent_obj, $a_parent_cmd, $a_selection_gui=null, $a_selection_cmd="selectObject", $a_selection_par="sel_ref_id", $a_id="rep_exp_sel")
	Constructor. More...

	setNodeContentModifier (callable $a_val)
	Set node content modifier. More...

	getNodeContentModifier ()
	Get node content modifier. 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...

	setHighlightedNode ($a_value)
	set an alternate highlighted node if $_GET["ref_id"] is not set or wrong More...

	getHighlightedNode ()
	get an alternate highlighted node if $_GET["ref_id"] is not set or wrong Returns null if not set More...

	setClickableTypes ($a_types)
	set Whitelist for clickable items More...

	getClickableTypes ()
	get whitelist for clickable items More...

	setSelectableTypes ($a_types)
	Get HTML. More...

	getSelectableTypes ()
	get whitelist for clickable items 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 ($new=false)
	Get HTML. More...

	getChildren ($node, $environment=null)
	Get a list of records (that list can also be empty).Each record will be relayed to $this->build to retrieve a Node. Also, each record will be asked for Sub-Nodes using this function. Returns array More...

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

	getTreeLabel ()

	getTreeComponent ()
	Get Tree UI. More...

	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
	__construct ($a_expl_id, $a_parent_obj, $a_parent_cmd)
	Constructor. More...

	setChildLimit ($a_val)
	Set child limit. More...

	getChildLimit ()
	Get child limit. More...

	setSearchTerm ($a_val)
	Set search term. More...

	getSearchTerm ()
	Get search term. More...

	setMainTemplate ($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...

Public Member Functions inherited from ILIAS\UI\Component\Tree\TreeRecursion
	getChildren ( $record, $environment=null)
	Get a list of records (that list can also be empty). More...

	build (Node\Factory $factory, $record, $environment=null)
	Build and return a Node. More...

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

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

	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 ()
	Render tree. More...

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 ()

Protected Attributes
	$obj_definition

	$lng

	$type_grps = array()

	$session_materials = array()

	$highlighted_node = null

	$clickable_types = array()

	$ctrl

	$access

	$nc_modifier = null

	$selection_gui = null

	$selection_par

	$selection_cmd

Protected Attributes inherited from ilTreeExplorerGUI
	$lng

	$httpRequest

	$tree = null

	$tree_label = ""

	$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()

	$ui

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

	$search_term = ""

	$open_nodes = []

	$store

	$parent_obj

	$child_limit = 0

	$parent_cmd = ''

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	getLocalJsTreeCssPath ()
	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...

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

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

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

Detailed Description

Explorer for selecting repository items.

The implementation starts as a replacement for the often (ab)used ilSearchRootSelector class. Clicking items triggers a "selection" command. However ajax/checkbox/radio and use in an inputgui class should be implemented in the future, too.

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

Version: $Id$

Definition at line 18 of file class.ilRepositorySelectorExplorerGUI.php.

Constructor & Destructor Documentation

◆ __construct()

ilRepositorySelectorExplorerGUI::__construct	(	$a_parent_obj,
		$a_parent_cmd,
		$a_selection_gui = `null`,
		$a_selection_cmd = `"selectObject"`,
		$a_selection_par = `"sel_ref_id"`,
		$a_id = `"rep_exp_sel"`
	)

Constructor.

Parameters

object	$a_parent_obj	parent gui object
string	$a_parent_cmd	parent cmd that renders the explorer
	object/string	$a_selection_gui gui class that should be called for the selection command
string	$a_selection_cmd	selection command
string	$a_selection_par	selection parameter

Reimplemented in ilPoolSelectorGUI, and ilPCFileItemFileSelectorGUI.

Definition at line 74 of file class.ilRepositorySelectorExplorerGUI.php.

      {
        global $DIC;
 
        $this->tree = $DIC->repositoryTree();
        $this->obj_definition = $DIC["objDefinition"];
        $this->lng = $DIC->language();
        $tree = $DIC->repositoryTree();
        $ilSetting = $DIC->settings();
        $objDefinition = $DIC["objDefinition"];
 
        $this->access = $DIC->access();
        $this->ctrl = $DIC->ctrl();
 
        if (is_null($a_selection_gui)) {
            $a_selection_gui = $a_parent_obj;
        }
 
        $this->selection_gui = is_object($a_selection_gui)
            ? strtolower(get_class($a_selection_gui))
            : strtolower($a_selection_gui);
        $this->selection_cmd = $a_selection_cmd;
        $this->selection_par = $a_selection_par;
        parent::__construct($a_id, $a_parent_obj, $a_parent_cmd, $tree);
 
        $this->setSkipRootNode(false);
        $this->setAjax(true);
        $this->setOrderField("title");
 
        // per default: all object types, except item groups
        $white = array();
        foreach ($objDefinition->getSubObjectsRecursively("root") as $rtype) {
            if ($rtype["name"] != "itgr" && !$objDefinition->isSideBlock($rtype["name"])) {
                $white[] = $rtype["name"];
            }
        }
        $this->setTypeWhiteList($white);
 
        // always open the path to the current ref id
        $this->setPathOpen((int) $this->tree->readRootId());
        if ((int) $_GET["ref_id"] > 0) {
            $this->setPathOpen((int) $_GET["ref_id"]);
        }
        $this->setChildLimit((int) $ilSetting->get("rep_tree_limit_number"));
    }

References $_GET, $DIC, $ilSetting, ilTreeExplorerGUI\$tree, ILIAS\GlobalScreen\Provider\__construct(), ilExplorerBaseGUI\setAjax(), ilExplorerBaseGUI\setChildLimit(), ilTreeExplorerGUI\setOrderField(), ilTreeExplorerGUI\setPathOpen(), ilExplorerBaseGUI\setSkipRootNode(), and ilTreeExplorerGUI\setTypeWhiteList().

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Member Function Documentation

◆ getChildsOfNode()

ilRepositorySelectorExplorerGUI::getChildsOfNode ( $a_parent_node_id )

Get childs of node.

Parameters

int $a_parent_node_id node id

Returns: array childs array

Reimplemented from ilTreeExplorerGUI.

Definition at line 333 of file class.ilRepositorySelectorExplorerGUI.php.

    {
        $ilAccess = $this->access;
 
        if (!$ilAccess->checkAccess("read", "", $a_parent_node_id)) {
            return array();
        }
 
        return parent::getChildsOfNode($a_parent_node_id);
    }

References $access.

◆ getClickableTypes()

ilRepositorySelectorExplorerGUI::getClickableTypes ( )

get whitelist for clickable items

Returns: array types

Definition at line 408 of file class.ilRepositorySelectorExplorerGUI.php.

    {
        return (array) $this->clickable_types;
    }

References $clickable_types.

Referenced by isNodeClickable().

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◆ getHighlightedNode()

ilRepositorySelectorExplorerGUI::getHighlightedNode ( )

get an alternate highlighted node if $_GET["ref_id"] is not set or wrong Returns null if not set

Returns: mixed ref_id

Definition at line 385 of file class.ilRepositorySelectorExplorerGUI.php.

    {
        return $this->highlighted_node;
    }

References $highlighted_node.

Referenced by isNodeHighlighted().

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◆ getNodeContent()

ilRepositorySelectorExplorerGUI::getNodeContent ( $a_node )

Get node content.

Parameters

array $a_node node data

Returns: string content

Reimplemented from ilExplorerBaseGUI.

Definition at line 152 of file class.ilRepositorySelectorExplorerGUI.php.

    {
        $lng = $this->lng;
 
        $c = $this->getNodeContentModifier();
        if (is_callable($c)) {
            return $c($a_node);
        }
 
        $title = $a_node["title"];
        if ($a_node["child"] == $this->getNodeId($this->getRootNode())) {
            if ($title == "ILIAS") {
                $title = $lng->txt("repository");
            }
        }
 
        return $title;
    }

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

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◆ getNodeContentModifier()

ilRepositorySelectorExplorerGUI::getNodeContentModifier ( )

Get node content modifier.

Returns: callable

Definition at line 141 of file class.ilRepositorySelectorExplorerGUI.php.

    {
        return $this->nc_modifier;
    }

References $nc_modifier.

Referenced by getNodeContent().

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◆ getNodeHref()

ilRepositorySelectorExplorerGUI::getNodeHref ( $a_node )

Get href for node.

Parameters

mixed $a_node node object/array

Returns: string href attribute

Reimplemented from ilExplorerBaseGUI.

Reimplemented in ilGroupActionTargetExplorerGUI, ilPCFileItemFileSelectorGUI, ilPoolSelectorGUI, ilIntLinkRepItemExplorerGUI, and ilLinkTargetObjectExplorerGUI.

Definition at line 233 of file class.ilRepositorySelectorExplorerGUI.php.

    {
        $ilCtrl = $this->ctrl;
 
        if ($this->select_postvar == "") {
            $ilCtrl->setParameterByClass($this->selection_gui, $this->selection_par, $a_node["child"]);
            $link = $ilCtrl->getLinkTargetByClass($this->selection_gui, $this->selection_cmd);
            $ilCtrl->setParameterByClass($this->selection_gui, $this->selection_par, "");
        } else {
            return "#";
        }
 
        return $link;
    }

References $ctrl.

◆ getNodeIcon()

ilRepositorySelectorExplorerGUI::getNodeIcon ( $a_node )

Get node icon.

Parameters

array $a_node node data

Returns: string icon path

Reimplemented from ilExplorerBaseGUI.

Definition at line 177 of file class.ilRepositorySelectorExplorerGUI.php.

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

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

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◆ getNodeIconAlt()

ilRepositorySelectorExplorerGUI::getNodeIconAlt ( $a_node )

Get node icon alt text.

Parameters

array $a_node node data

Returns: string alt text

Reimplemented from ilTreeExplorerGUI.

Definition at line 189 of file class.ilRepositorySelectorExplorerGUI.php.

    {
        $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);
    }

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

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◆ getSelectableTypes()

ilRepositorySelectorExplorerGUI::getSelectableTypes ( )

get whitelist for clickable items

Returns: array types

Definition at line 455 of file class.ilRepositorySelectorExplorerGUI.php.

    {
        return (array) $this->selectable_types;
    }

Referenced by isNodeSelectable().

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◆ isNodeClickable()

ilRepositorySelectorExplorerGUI::isNodeClickable ( $a_node )

Is node clickable?

Parameters

array $a_node node data

Returns: boolean node clickable true/false

Reimplemented from ilExplorerBaseGUI.

Reimplemented in ilForumMoveTopicsExplorer, ilGroupActionTargetExplorerGUI, ilConditionSelector, ilPCFileItemFileSelectorGUI, ilLinkTargetObjectExplorerGUI, and ilTestQuestionPoolSelectorExplorer.

Definition at line 350 of file class.ilRepositorySelectorExplorerGUI.php.

    {
        $ilAccess = $this->access;
 
        if ($this->select_postvar != "") {
            // return false; #14354
        }
 
        if (!$ilAccess->hasUserRBACorAnyPositionAccess("read", $a_node["child"])) {
            return false;
        }
 
        if (is_array($this->getClickableTypes()) && count($this->getClickableTypes()) > 0) {
            return in_array($a_node["type"], $this->getClickableTypes());
        }
 
        return true;
    }

References $access, and getClickableTypes().

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◆ isNodeHighlighted()

ilRepositorySelectorExplorerGUI::isNodeHighlighted ( $a_node )

Is node highlighted?

Parameters

mixed $a_node node object/array

Returns: boolean node visible true/false

Reimplemented from ilExplorerBaseGUI.

Reimplemented in ilConditionSelector.

Definition at line 211 of file class.ilRepositorySelectorExplorerGUI.php.

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

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

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◆ isNodeSelectable()

ilRepositorySelectorExplorerGUI::isNodeSelectable ( $a_node )

protected

Is node selectable?

Parameters

mixed $a_node node object/array

Returns: boolean node selectable true/false

Reimplemented from ilExplorerBaseGUI.

Reimplemented in ilForumMoveTopicsExplorer.

Definition at line 466 of file class.ilRepositorySelectorExplorerGUI.php.

    {
        if (count($this->getSelectableTypes())) {
            return in_array($a_node['type'], $this->getSelectableTypes());
        }
        return true;
    }

References getSelectableTypes().

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◆ isNodeVisible()

ilRepositorySelectorExplorerGUI::isNodeVisible ( $a_node )

Is node visible.

Parameters

array $a_node node data

Returns: bool visible true/false

Reimplemented from ilExplorerBaseGUI.

Reimplemented in ilForumMoveTopicsExplorer, ilConditionSelector, and ilTestQuestionPoolSelectorExplorer.

Definition at line 254 of file class.ilRepositorySelectorExplorerGUI.php.

    {
        $ilAccess = $this->access;
 
        if (!$ilAccess->checkAccess('visible', '', $a_node["child"])) {
            return false;
        }
 
        return true;
    }

References $access.

◆ setClickableTypes()

ilRepositorySelectorExplorerGUI::setClickableTypes ( $a_types )

set Whitelist for clickable items

Parameters

array/string $a_types array type

Definition at line 395 of file class.ilRepositorySelectorExplorerGUI.php.

    {
        if (!is_array($a_types)) {
            $a_types = array($a_types);
        }
        $this->clickable_types = $a_types;
    }

Referenced by ilPCFileItemFileSelectorGUI\__construct(), and ilTestQuestionPoolSelectorExplorer\__construct().

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◆ setHighlightedNode()

ilRepositorySelectorExplorerGUI::setHighlightedNode ( $a_value )

set an alternate highlighted node if $_GET["ref_id"] is not set or wrong

Parameters

int $a_value ref_id

Definition at line 374 of file class.ilRepositorySelectorExplorerGUI.php.

    {
        $this->highlighted_node = $a_value;
    }

◆ setNodeContentModifier()

ilRepositorySelectorExplorerGUI::setNodeContentModifier ( callable $a_val )

Set node content modifier.

Parameters

callable $a_val

Definition at line 131 of file class.ilRepositorySelectorExplorerGUI.php.

    {
        $this->nc_modifier = $a_val;
    }

◆ setSelectableTypes()

ilRepositorySelectorExplorerGUI::setSelectableTypes ( $a_types )

Get HTML.

Parameters

return set Whitelist for clickable items

Parameters

array/string $a_types array type

Definition at line 442 of file class.ilRepositorySelectorExplorerGUI.php.

    {
        if (!is_array($a_types)) {
            $a_types = array($a_types);
        }
        $this->selectable_types = $a_types;
    }

◆ sortChilds()

ilRepositorySelectorExplorerGUI::sortChilds	(	$a_childs,
		$a_parent_node_id
	)

Sort childs.

Parameters

array	$a_childs	array of child nodes
int	$a_parent_node_id	parent node id

Returns: array array of childs nodes

Reimplemented from ilExplorerBaseGUI.

Definition at line 272 of file class.ilRepositorySelectorExplorerGUI.php.

    {
        $objDefinition = $this->obj_definition;
 
        $parent_obj_id = ilObject::_lookupObjId($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");
        }
 
        if (empty($this->type_grps[$parent_type])) {
            $this->type_grps[$parent_type] =
                $objDefinition->getGroupedRepositoryObjectTypes($parent_type);
        }
        $group = array();
 
        foreach ($a_childs as $child) {
            $g = $objDefinition->getGroupOfObj($child["type"]);
            if ($g == "") {
                $g = $child["type"];
            }
            $group[$g][] = $child;
        }
 
        // #14587 - $objDefinition->getGroupedRepositoryObjectTypes does NOT include side blocks!
        $wl = $this->getTypeWhiteList();
        if (is_array($wl) && in_array("poll", $wl)) {
            $this->type_grps[$parent_type]["poll"] = array();
        }
 
        $childs = array();
        foreach ($this->type_grps[$parent_type] as $t => $g) {
            if (is_array($group[$t])) {
                // 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) {
                    $childs[] = $item;
                }
            }
        }
 
        return $childs;
    }