ilRepUtil Class Reference

Repository Utilities (application layer, put GUI related stuff into ilRepUtilGUI) More...

Collaboration diagram for ilRepUtil:

Public Member Functions
	__construct ()
	Constructor. More...
	deleteObjectType ($a_type)

Static Public Member Functions
static	deleteObjects ($a_cur_ref_id, $a_ids)
	Delete objects. More...
static	removeObjectsFromSystem ($a_ref_ids, $a_from_recovery_folder=false)
	remove objects from trash bin and all entries therefore every object needs a specific deleteObject() method More...
static	restoreObjects ($a_cur_ref_id, $a_ref_ids)
	Move objects from trash back to repository. More...

Protected Member Functions
	findTypeInTrash ($a_type)
	getObjectTypeId ($a_type)

Protected Attributes
	$db
	$tree
	$settings

Static Private Member Functions
static	removeDeletedNodes ( $a_node_id, $a_checked, $a_delete_objects, &$a_affected_ids)
	Remove already deleted objects within the objects in trash. More...
static	insertSavedNodes ($a_source_id, $a_dest_id, $a_tree_id, &$a_affected_ids)
	Recursive method to insert all saved nodes of the clipboard. More...

Detailed Description

Repository Utilities (application layer, put GUI related stuff into ilRepUtilGUI)

Author

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

Version

$Id$

Definition at line 13 of file class.ilRepUtil.php.

Constructor & Destructor Documentation

__construct()

ilRepUtil::__construct

(

)

Constructor.

Definition at line 34 of file class.ilRepUtil.php.

References $DIC, and settings().

    {
        global $DIC;

        $this->db = $DIC->database();
        $this->tree = $DIC->repositoryTree();
        $this->settings = $DIC->settings();
    }

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Member Function Documentation

deleteObjects()

static ilRepUtil::deleteObjects (   $a_cur_ref_id,   $a_ids  )

static

Delete objects.

Move them to trash (if trash feature is enabled).

Parameters

integer	current ref id
array	array of ref(!) ids to be deleted

Definition at line 50 of file class.ilRepUtil.php.

References $DIC, $id, $ilLog, $ilSetting, $key, $lng, $log, $tree, ilECSObjectSettings\_handleDelete(), ilObject\_lookupObjId(), ilObject\_lookupTitle(), array, ilSession\clear(), ilObjectFactory\getInstanceByObjId(), ilUtil\removeItemFromDesktops(), and removeObjectsFromSystem().

Referenced by ilObjCloudGUI\afterServiceAuth(), ilObjStudyProgrammeTreeGUI\confirmedDelete(), ilRepUtilGUI\deleteObjects(), and deleteObjectType().

    {
        global $DIC;

        $ilAppEventHandler = $DIC["ilAppEventHandler"];
        $rbacsystem = $DIC->rbac()->system();
        $rbacadmin = $DIC->rbac()->admin();
        $ilLog = $DIC["ilLog"];
        $tree = $DIC->repositoryTree();
        $lng = $DIC->language();
        $ilSetting = $DIC->settings();

        $log = $ilLog;
        
        include_once("./Services/Repository/exceptions/class.ilRepositoryException.php");
        
        // Remove duplicate ids from array
        $a_ids = array_unique((array) $a_ids);

        // FOR ALL SELECTED OBJECTS
        $not_deletable = [];
        foreach ($a_ids as $id) {
            if ($tree->isDeleted($id)) {
                $log->write(__METHOD__ . ': Object with ref_id: ' . $id . ' already deleted.');
                throw new ilRepositoryException($lng->txt("msg_obj_already_deleted"));
            }
            
            // GET COMPLETE NODE_DATA OF ALL SUBTREE NODES
            $node_data = $tree->getNodeData($id);
            $subtree_nodes = $tree->getSubTree($node_data);

            $all_node_data[] = $node_data;
            $all_subtree_nodes[] = $subtree_nodes;

            // CHECK DELETE PERMISSION OF ALL OBJECTS
            foreach ($subtree_nodes as $node) {
                if ($node['type'] == 'rolf') {
                    continue;
                }
                if (!$rbacsystem->checkAccess('delete', $node["child"])) {
                    $not_deletable[] = $node["child"];
                    $perform_delete = false;
                }
            }
        }

        // IF THERE IS ANY OBJECT WITH NO PERMISSION TO DELETE
        if (is_array($not_deletable) && count($not_deletable) > 0) {
            $not_deletable_titles = array();
            foreach ($not_deletable as $key => $ref_id) {
                $obj_id = ilObject::_lookupObjId($ref_id);
                $not_deletable_titles[] = ilObject::_lookupTitle($obj_id);
            }
            
            ilSession::clear("saved_post");
            throw new ilRepositoryException(
                $lng->txt("msg_no_perm_delete") . " " . implode(', ', $not_deletable_titles) . "<br/>" . $lng->txt("msg_cancel")
            );
        }

        // DELETE THEM
        if (!$all_node_data[0]["type"]) {
            // alex: this branch looks suspicious to me... I deactivate it for
            // now. Objects that aren't in the tree should overwrite this method.
            throw new ilRepositoryException($lng->txt("ilRepUtil::deleteObjects: Type information missing."));
            // OBJECTS ARE NO 'TREE OBJECTS'
            if ($rbacsystem->checkAccess('delete', $a_cur_ref_id)) {
                foreach ($a_ids as $id) {
                    $obj = ilObjectFactory::getInstanceByObjId($id);
                    $obj->delete();
                    
                    // write log entry
                    $log->write("ilObjectGUI::confirmedDeleteObject(), deleted obj_id " . $obj->getId() .
                        ", type: " . $obj->getType() . ", title: " . $obj->getTitle());
                }
            } else {
                throw new ilRepositoryException(
                    $lng->txt("no_perm_delete") . "<br/>" . $lng->txt("msg_cancel")
                );
            }
        } else {
            // SAVE SUBTREE AND DELETE SUBTREE FROM TREE
            $affected_ids = array();
            $affected_parents = array();
            foreach ($a_ids as $id) {
                if ($tree->isDeleted($id)) {
                    $log->write(__METHOD__ . ': Object with ref_id: ' . $id . ' already deleted.');
                    throw new ilRepositoryException($lng->txt("msg_obj_already_deleted"));
                }
                
                // DELETE OLD PERMISSION ENTRIES
                $subnodes = $tree->getSubtree($tree->getNodeData($id));

                foreach ($subnodes as $subnode) {
                    $rbacadmin->revokePermission($subnode["child"]);
                    // remove item from all user desktops
                    $affected_users = ilUtil::removeItemFromDesktops($subnode["child"]);
                    
                    $affected_ids[$subnode["child"]] = $subnode["child"];
                    $affected_parents[$subnode["child"]] = $subnode["parent"];
                    
                    // TODO: inform users by mail that object $id was deleted
                    //$mail->sendMail($id,$msg,$affected_users);
                    // should go to appevents at the end
                }
                
                // TODO: needs other handling
                // This class shouldn't have to know anything about ECS
                include_once('./Services/WebServices/ECS/classes/class.ilECSObjectSettings.php');
                ilECSObjectSettings::_handleDelete($subnodes);

                if (!$tree->saveSubTree($id, true)) {
                    $log->write(__METHOD__ . ': Object with ref_id: ' . $id . ' already deleted.');
                    throw new ilRepositoryException($lng->txt("msg_obj_already_deleted"));
                }

                // write log entry
                $log->write("ilObjectGUI::confirmedDeleteObject(), moved ref_id " . $id .
                    " to trash");
                
                // remove item from all user desktops
                $affected_users = ilUtil::removeItemFromDesktops($id);
                
                $affected_ids[$id] = $id;

                // TODO: inform users by mail that object $id was deleted
                //$mail->sendMail($id,$msg,$affected_users);
            }
            
            // send global events
            foreach ($affected_ids as $aid) {
                $ilAppEventHandler->raise(
                    "Services/Object",
                    "toTrash",
                    array( "obj_id" => ilObject::_lookupObjId($aid),
                           "ref_id" => $aid,
                           "old_parent_ref_id" => $affected_parents[$aid]
                         )
                );
            }
        }
        
        if (!$ilSetting->get('enable_trash')) {
            ilRepUtil::removeObjectsFromSystem($a_ids);
        }
    }

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deleteObjectType()

ilRepUtil::deleteObjectType

(

$a_type

)

Definition at line 519 of file class.ilRepUtil.php.

References $a_type, $db, $ilDB, $ilSetting, $row, $settings, $tree, array, deleteObjects(), ilObjRepositorySettings\deleteObjectType(), findTypeInTrash(), and getObjectTypeId().

    {
        $ilDB = $this->db;
        $tree = $this->tree;
        $ilSetting = $this->settings;
        
        // delete object instances (repository/trash)
        
        $ref_ids_in_tree = $tree->getSubTree($tree->getNodeData(ROOT_FOLDER_ID), false, $a_type);
        if ($ref_ids_in_tree) {
            $this->deleteObjects(null, $ref_ids_in_tree);
        }
        
        if ($ilSetting->get('enable_trash')) {
            $ref_ids_in_trash = $this->findTypeInTrash($a_type);
            if ($ref_ids_in_trash) {
                self::removeObjectsFromSystem($ref_ids_in_trash);
            }
        }
        
        // delete "component"
        $type_id = $this->getObjectTypeId($a_type);
        if ($type_id) {
            // see ilRepositoryObjectPlugin::beforeActivation()
            
            $ilDB->manipulate("DELETE FROM object_data" .
                " WHERE obj_id = " . $ilDB->quote($type_id, "integer"));
            
            // RBAC
            
            // basic operations
            $ilDB->manipulate("DELETE FROM rbac_ta" .
                " WHERE typ_id = " . $ilDB->quote($type_id, "integer") /*.
                " AND ".$ilDB->in("ops_id", array(1, 2, 3, 4, 6), "", "integer") */);
            
            // creation operation
            $set = $ilDB->query("SELECT ops_id" .
                " FROM rbac_operations " .
                " WHERE class = " . $ilDB->quote("create", "text") .
                " AND operation = " . $ilDB->quote("create_" . $a_type, "text"));
            $row = $ilDB->fetchAssoc($set);
            $create_ops_id = $row["ops_id"];
            if ($create_ops_id) {
                $ilDB->manipulate("DELETE FROM rbac_operations" .
                    " WHERE ops_id = " . $ilDB->quote($create_ops_id, "integer"));
                
                $ilDB->manipulate("DELETE FROM rbac_templates" .
                    " WHERE ops_id = " . $ilDB->quote($create_ops_id, "integer"));
                
                // container create
                foreach (array("root", "cat", "crs", "grp", "fold") as $parent_type) {
                    $parent_type_id = $this->getObjectTypeId($parent_type);
                    if ($parent_type_id) {
                        $ilDB->manipulate("DELETE FROM rbac_ta" .
                            " WHERE typ_id = " . $ilDB->quote($parent_type_id, "integer") .
                            " AND ops_id = " . $ilDB->quote($create_ops_id, "integer"));
                    }
                }
            }
        }
        
        // delete new item settings
        include_once "Services/Repository/classes/class.ilObjRepositorySettings.php";
        ilObjRepositorySettings::deleteObjectType($a_type);
    }

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findTypeInTrash()

ilRepUtil::findTypeInTrash (   $a_type )

protected

Definition at line 488 of file class.ilRepUtil.php.

References $a_type, $db, $ilDB, $res, $row, and array.

Referenced by deleteObjectType().

    {
        $ilDB = $this->db;
        
        $res = array();
        
        $set = $ilDB->query("SELECT child" .
            " FROM tree" .
            " JOIN object_reference ref ON (tree.child = ref.ref_id)" .
            " JOIN object_data od ON (od.obj_id = ref.obj_id)" .
            " WHERE tree.tree < " . $ilDB->quote(0, "integer") .
            " AND od.type = " . $ilDB->quote($a_type, "text"));
        while ($row = $ilDB->fetchAssoc($set)) {
            $res[] = $row["child"];
        }
        
        return $res;
    }

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getObjectTypeId()

ilRepUtil::getObjectTypeId (   $a_type )

protected

Definition at line 507 of file class.ilRepUtil.php.

References $a_type, $db, $ilDB, and $row.

Referenced by deleteObjectType().

    {
        $ilDB = $this->db;

        $set = $ilDB->query("SELECT obj_id" .
            " FROM object_data " .
            " WHERE type = " . $ilDB->quote("typ", "text") .
            " AND title = " . $ilDB->quote($a_type, "text"));
        $row = $ilDB->fetchAssoc($set);
        return $row["obj_id"];
    }

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insertSavedNodes()

static ilRepUtil::insertSavedNodes (   $a_source_id,   $a_dest_id,   $a_tree_id, &  $a_affected_ids  )

staticprivate

Recursive method to insert all saved nodes of the clipboard.

Definition at line 441 of file class.ilRepUtil.php.

References $DIC, $factory, $GLOBALS, $tree, ilLoggerFactory\getLogger(), and IL_LAST_NODE.

Referenced by restoreObjects().

    {
        global $DIC;

        $tree = $DIC->repositoryTree();

        ilLoggerFactory::getLogger('rep')->debug('Restoring from trash: source_id: ' . $a_source_id . ', dest_id: ' . $a_dest_id . ', tree_id:' . $a_tree_id);
        ilLoggerFactory::getLogger('rep')->info('Restoring ref_id  ' . $a_source_id . ' from trash.');
        
        // read child of node
        $saved_tree = new ilTree($a_tree_id);
        $childs = $saved_tree->getChilds($a_source_id);
        
        // then delete node and put in tree
        try {
            $tree->insertNodeFromTrash($a_source_id, $a_dest_id, $a_tree_id, IL_LAST_NODE, true);
        } catch (Exception $e) {
            ilLoggerFactory::getLogger('rep')->error('Restore from trash failed with message: ' . $e->getMessage());
            throw $e;
        }
        
        include_once './Services/Object/classes/class.ilObjectFactory.php';
        $factory = new ilObjectFactory();
        $ref_obj = $factory->getInstanceByRefId($a_source_id, false);
        if ($ref_obj instanceof ilObject) {
            $lroles = $GLOBALS['rbacreview']->getRolesOfRoleFolder($a_source_id, true);
            foreach ($lroles as $role_id) {
                include_once './Services/AccessControl/classes/class.ilObjRole.php';
                $role = new ilObjRole($role_id);
                $role->setParent($a_source_id);
                $role->delete();
            }
            if ($a_dest_id) {
                $ref_obj->setPermissions($a_dest_id);
            }
        }
        foreach ($childs as $child) {
            ilRepUtil::insertSavedNodes($child["child"], $a_source_id, $a_tree_id, $a_affected_ids);
        }
    }

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removeDeletedNodes()

static ilRepUtil::removeDeletedNodes (   $a_node_id,   $a_checked,   $a_delete_objects, &  $a_affected_ids  )

staticprivate

Remove already deleted objects within the objects in trash.

Definition at line 304 of file class.ilRepUtil.php.

References $DIC, $ilDB, $ilLog, $log, $r, $row, $tree, array, and ilObjectFactory\getInstanceByRefId().

Referenced by removeObjectsFromSystem().

      {
        global $DIC;

        $ilLog = $DIC["ilLog"];
        $ilDB = $DIC->database();
        $tree = $DIC->repositoryTree();

        $log = $ilLog;
        
        $q = "SELECT tree FROM tree WHERE parent= " .
            $ilDB->quote($a_node_id, "integer") . " AND tree < 0";
        
        $r = $ilDB->query($q);

        while ($row = $ilDB->fetchObject($r)) {
            // only continue recursion if fetched node wasn't touched already!
            if (!in_array($row->tree, $a_checked)) {
                $deleted_tree = new ilTree($row->tree);
                $a_checked[] = $row->tree;

                $row->tree = $row->tree * (-1);
                $del_node_data = $deleted_tree->getNodeData($row->tree);
                $del_subtree_nodes = $deleted_tree->getSubTree($del_node_data);

                ilRepUtil::removeDeletedNodes($row->tree, $a_checked, $a_delete_objects, $a_affected_ids);
            
                if ($a_delete_objects) {
                    foreach ($del_subtree_nodes as $node) {
                        $node_obj = ilObjectFactory::getInstanceByRefId($node["ref_id"]);
                        
                        // write log entry
                        $log->write("ilObjectGUI::removeDeletedNodes(), delete obj_id: " . $node_obj->getId() .
                            ", ref_id: " . $node_obj->getRefId() . ", type: " . $node_obj->getType() . ", " .
                            "title: " . $node_obj->getTitle());
                        $a_affected_ids[$node["ref_id"]] = array(
                                                            "ref_id" => $node["ref_id"],
                                                            "obj_id" => $node_obj->getId(),
                                                            "type" => $node_obj->getType(),
                                                            "old_parent_ref_id" => $node["parent"]);
                                                        
                        $node_obj->delete();
                    }
                }
            
                $tree->deleteTree($del_node_data);
                
                // write log entry
                $log->write("ilObjectGUI::removeDeletedNodes(), deleted tree, tree_id: " . $del_node_data["tree"] .
                    ", child: " . $del_node_data["child"]);
            }
        }
        
        return true;
    }

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removeObjectsFromSystem()

static ilRepUtil::removeObjectsFromSystem (   $a_ref_ids,   $a_from_recovery_folder = false  )

static

remove objects from trash bin and all entries therefore every object needs a specific deleteObject() method

public

Definition at line 202 of file class.ilRepUtil.php.

References $DIC, $id, $ilLog, $ilUser, $log, $tree, ilChangeEvent\_recordWriteEvent(), array, ilObjectFactory\getInstanceByRefId(), and removeDeletedNodes().

Referenced by deleteObjects(), and ilRepUtilGUI\removeObjectsFromSystem().

    {
        global $DIC;

        $ilLog = $DIC["ilLog"];
        $ilAppEventHandler = $DIC["ilAppEventHandler"];
        $tree = $DIC->repositoryTree();

        $log = $ilLog;

        $affected_ids = array();
        
        // DELETE THEM
        foreach ($a_ref_ids as $id) {
            // GET COMPLETE NODE_DATA OF ALL SUBTREE NODES
            if (!$a_from_recovery_folder) {
                $saved_tree = new ilTree(-(int) $id);
                $node_data = $saved_tree->getNodeData($id);
                $subtree_nodes = $saved_tree->getSubTree($node_data);
            } else {
                $node_data = $tree->getNodeData($id);
                $subtree_nodes = $tree->getSubTree($node_data);
            }

            // BEGIN ChangeEvent: Record remove from system.
            require_once('Services/Tracking/classes/class.ilChangeEvent.php');
            // Record write event
            global $DIC;

            $ilUser = $DIC->user();
            $tree = $DIC->repositoryTree();
            $parent_data = $tree->getParentNodeData($node_data['ref_id']);
            ilChangeEvent::_recordWriteEvent(
                $node_data['obj_id'],
                $ilUser->getId(),
                'purge',
                $parent_data['obj_id']
            );
            // END ChangeEvent: Record remove from system.

            // remember already checked deleted node_ids
            if (!$a_from_recovery_folder) {
                $checked[] = -(int) $id;
            } else {
                $checked[] = $id;
            }

            // dive in recursive manner in each already deleted subtrees and remove these objects too
            ilRepUtil::removeDeletedNodes($id, $checked, true, $affected_ids);

            foreach ($subtree_nodes as $node) {
                if (!$node_obj = ilObjectFactory::getInstanceByRefId($node["ref_id"], false)) {
                    continue;
                }

                // write log entry
                $log->write("ilObjectGUI::removeFromSystemObject(), delete obj_id: " . $node_obj->getId() .
                    ", ref_id: " . $node_obj->getRefId() . ", type: " . $node_obj->getType() . ", " .
                    "title: " . $node_obj->getTitle());
                $affected_ids[$node["ref_id"]] = array(
                                                    "ref_id" => $node["ref_id"],
                                                    "obj_id" => $node_obj->getId(),
                                                    "type" => $node_obj->getType(),
                                                    "old_parent_ref_id" => $node["parent"]);
                    
                // this is due to bug #1860 (even if this will not completely fix it)
                // and the fact, that media pool folders may find their way into
                // the recovery folder (what results in broken pools, if the are deleted)
                // Alex, 2006-07-21
                if (!$a_from_recovery_folder || $node_obj->getType() != "fold") {
                    $node_obj->delete();
                }
            }

            // Use the saved tree object here (negative tree_id)
            if (!$a_from_recovery_folder) {
                $saved_tree->deleteTree($node_data);
            } else {
                $tree->deleteTree($node_data);
            }

            // write log entry
            $log->write("ilObjectGUI::removeFromSystemObject(), deleted tree, tree_id: " . $node_data["tree"] .
                ", child: " . $node_data["child"]);
        }
        
        // send global events
        foreach ($affected_ids as $aid) {
            $ilAppEventHandler->raise(
                "Services/Object",
                "delete",
                array("obj_id" => $aid["obj_id"],
                "ref_id" => $aid["ref_id"],
                "type" => $aid["type"],
                "old_parent_ref_id" => $aid["old_parent_ref_id"])
            );
        }
    }

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restoreObjects()

static ilRepUtil::restoreObjects (   $a_cur_ref_id,   $a_ref_ids  )

static

Move objects from trash back to repository.

Definition at line 367 of file class.ilRepUtil.php.

References $DIC, $id, $ilUser, $lng, $tree, ilChangeEvent\_catchupWriteEvents(), ilObject\_lookupObjId(), ilObject\_lookupTitle(), ilChangeEvent\_recordWriteEvent(), array, ilObjectFactory\getInstanceByRefId(), and insertSavedNodes().

Referenced by ilRepUtilGUI\restoreObjects().

    {
        global $DIC;

        $rbacsystem = $DIC->rbac()->system();
        $ilAppEventHandler = $DIC["ilAppEventHandler"];
        $lng = $DIC->language();
        $tree = $DIC->repositoryTree();

        $cur_obj_id = ilObject::_lookupObjId($a_cur_ref_id);

        $no_create = [];

        foreach ($a_ref_ids as $id) {
            $obj_data = ilObjectFactory::getInstanceByRefId($id);

            if (!$rbacsystem->checkAccess('create', $a_cur_ref_id, $obj_data->getType())) {
                $no_create[] = ilObject::_lookupTitle(ilObject::_lookupObjId($id));
            }
        }

        if (count($no_create)) {
            include_once("./Services/Repository/exceptions/class.ilRepositoryException.php");
            throw new ilRepositoryException($lng->txt("msg_no_perm_paste") . " " . implode(',', $no_create));
        }
        
        $affected_ids = array();
        
        foreach ($a_ref_ids as $id) {
            $affected_ids[$id] = $id;
            
            // INSERT AND SET PERMISSIONS
            try {
                ilRepUtil::insertSavedNodes($id, $a_cur_ref_id, -(int) $id, $affected_ids);
            } catch (Exception $e) {
                include_once("./Services/Repository/exceptions/class.ilRepositoryException.php");
                throw new ilRepositoryException('Restore from trash failed with message: ' . $e->getMessage());
            }

            
            // BEGIN ChangeEvent: Record undelete.
            require_once('Services/Tracking/classes/class.ilChangeEvent.php');
            global $DIC;

            $ilUser = $DIC->user();

            
            ilChangeEvent::_recordWriteEvent(
                ilObject::_lookupObjId($id),
                $ilUser->getId(),
                'undelete',
                ilObject::_lookupObjId($tree->getParentId($id))
            );
            ilChangeEvent::_catchupWriteEvents(
                $cur_obj_id,
                $ilUser->getId()
            );
            // END PATCH ChangeEvent: Record undelete.
        }

        // send events
        foreach ($affected_ids as $id) {
            // send global event
            $ilAppEventHandler->raise(
                "Services/Object",
                "undelete",
                array("obj_id" => ilObject::_lookupObjId($id), "ref_id" => $id)
            );
        }
    }

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Field Documentation

$db

ilRepUtil::$db

protected

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

Referenced by deleteObjectType(), findTypeInTrash(), and getObjectTypeId().

$settings

ilRepUtil::$settings

protected

Definition at line 28 of file class.ilRepUtil.php.

Referenced by deleteObjectType().

$tree

ilRepUtil::$tree

protected

Definition at line 23 of file class.ilRepUtil.php.

Referenced by deleteObjects(), deleteObjectType(), insertSavedNodes(), removeDeletedNodes(), removeObjectsFromSystem(), and restoreObjects().

---

The documentation for this class was generated from the following file:

• Services/Repository/classes/class.ilRepUtil.php