ilRepUtil Class Reference

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

Collaboration diagram for ilRepUtil:

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

Static Public Member Functions
static	deleteObjects ($a_cur_ref_id, $a_ids)
	Delete objects.

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

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.

Member Function Documentation

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 22 of file class.ilRepUtil.php.

References $ilSetting, $lng, $log, ilECSContentWriter\_handleDelete(), ilPaymentObject\_isBuyable(), ilObject\_lookupObjId(), ilObjectFactory\getInstanceByObjId(), ilObjectFactory\getInstanceByRefId(), ilUtil\removeItemFromDesktops(), and removeObjectsFromSystem().

        {
                global $ilAppEventHandler, $rbacsystem, $rbacadmin, $log, $ilUser, $tree, $lng,
                        $ilSetting;
                
                include_once './Services/Payment/classes/class.ilPaymentObject.php';
                include_once("./Services/Repository/exceptions/class.ilRepositoryException.php");
                
                // Remove duplicate ids from array
                $a_ids = array_unique((array) $a_ids);

                // FOR ALL SELECTED OBJECTS
                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"];
                                        $perform_delete = false;
                                }
                                else if(ilPaymentObject::_isBuyable($node['child']))
                                {
                                        $buyable[] = $node['child'];
                                        $perform_delete = false;
                                }
                        }
                }

                // IF THERE IS ANY OBJECT WITH NO PERMISSION TO DELETE
                if (count($not_deletable))
                {
                        $not_deletable = implode(',',$not_deletable);
                        session_unregister("saved_post");
                        throw new ilRepositoryException(
                                $lng->txt("msg_no_perm_delete")." ".$not_deletable."<br/>".$lng->txt("msg_cancel"));
                }

                if(count($buyable))
                {
                        foreach($buyable as $id)
                        {
                                $tmp_object = ilObjectFactory::getInstanceByRefId($id);

                                $titles[] = $tmp_object->getTitle();
                        }
                        $title_str = implode(',',$titles);

                        throw new ilRepositoryException(
                                $lng->txt('msg_obj_not_deletable_sold').' '.$title_str);
                }

                // 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
                        $affected_ids = array();
                        foreach ($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"];
                                        
                                        // 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.ilECSContentWriter.php');
                                ilECSContentWriter::_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" => $aid));
                        }
                        // inform other objects in hierarchy about paste operation
                        //$this->object->notify("confirmedDelete", $_GET["ref_id"],$_GET["parent_non_rbac_id"],$_GET["ref_id"],$_SESSION["saved_post"]);
                }
                
                if (!$ilSetting->get('enable_trash'))
                {
                        ilRepUtil::removeObjectsFromSystem($a_ids);
                }
        }

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

private

Recursive method to insert all saved nodes of the clipboard.

Definition at line 414 of file class.ilRepUtil.php.

References $log, ilObjectFactory\getInstanceByRefId(), and IL_LAST_NODE.

Referenced by restoreObjects().

        {
                global $rbacadmin, $rbacreview, $log, $tree;

                $tree->insertNode($a_source_id,$a_dest_id, IL_LAST_NODE, true);
                $a_affected_ids[$a_source_id] = $a_source_id;
                
                // write log entry
                $log->write("ilRepUtil::insertSavedNodes(), restored ref_id $a_source_id from trash");

                // SET PERMISSIONS
                $parentRoles = $rbacreview->getParentRoleIds($a_dest_id);
                $obj =& ilObjectFactory::getInstanceByRefId($a_source_id);

                foreach ($parentRoles as $parRol)
                {
                        $ops = $rbacreview->getOperationsOfRole($parRol["obj_id"], $obj->getType(), $parRol["parent"]);
                        $rbacadmin->grantPermission($parRol["obj_id"],$ops,$a_source_id);
                }

                $saved_tree = new ilTree($a_tree_id);
                $childs = $saved_tree->getChilds($a_source_id);

                foreach ($childs as $child)
                {
                        ilRepUtil::insertSavedNodes($child["child"],$a_source_id,$a_tree_id,$a_affected_ids);
                }
        }

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

private

Remove already deleted objects within the objects in trash.

Definition at line 291 of file class.ilRepUtil.php.

References $ilDB, $log, $row, and ilObjectFactory\getInstanceByRefId().

Referenced by removeObjectsFromSystem().

        {
                global $log, $ilDB, $tree;
                
                $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());
                                                                                                                
                                                $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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ilRepUtil::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

public

Definition at line 191 of file class.ilRepUtil.php.

References $log, ilChangeEvent\_isActive(), ilChangeEvent\_recordWriteEvent(), ilObjectFactory\getInstanceByRefId(), and removeDeletedNodes().

Referenced by deleteObjects().

        {
                global $rbacsystem, $log, $ilAppEventHandler, $tree;
                
                $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');
                        if (ilChangeEvent::_isActive())
                        {
                                // Record write event
                                global $ilUser, $tree;
                                $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());
                                        
                                // 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"]));
                }
        }

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ilRepUtil::restoreObjects	(		$a_cur_ref_id,
			$a_ref_ids
	)

Move objects from trash back to repository.

Definition at line 347 of file class.ilRepUtil.php.

References $lng, $log, ilChangeEvent\_catchupWriteEvents(), ilChangeEvent\_isActive(), ilObject\_lookupObjId(), ilObject\_lookupTitle(), ilChangeEvent\_recordWriteEvent(), ilObjectFactory\getInstanceByRefId(), and insertSavedNodes().

        {
                global $rbacsystem, $log, $ilAppEventHandler, $lng;

                $cur_obj_id = ilObject::_lookupObjId($a_cur_ref_id);
                
                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
                        ilRepUtil::insertSavedNodes($id, $a_cur_ref_id, -(int) $id, $affected_ids);
                        
                        // DELETE SAVED TREE
                        $saved_tree = new ilTree(-(int)$id);
                        $saved_tree->deleteTree($saved_tree->getNodeData($id));
                        
                        // BEGIN ChangeEvent: Record undelete. 
                        require_once('Services/Tracking/classes/class.ilChangeEvent.php');
                        if (ilChangeEvent::_isActive())
                        {
                                global $ilUser, $tree;

                                $node_data = $saved_tree->getNodeData($id);
                                $saved_tree->deleteTree($node_data);
                        
                                // Record undelete event
                                $node_data = $tree->getNodeData($id);
                                $parent_data = $tree->getParentNodeData($node_data['ref_id']);
                                ilChangeEvent::_recordWriteEvent($node_data['obj_id'], $ilUser->getId(), 'undelete', 
                                        $parent_data['obj_id']);
                                ilChangeEvent::_catchupWriteEvents($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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The documentation for this class was generated from the following file:

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