ZP-842 Check if a folders parent ID is known on the mobile. If not, the

folder is ignored and not synchronized to the device.

Released under the Affero GNU General Public License (AGPL) version 3.

src/lib/core/changesmemorywrapper.php

@@ -228,6 +228,12 @@ class ChangesMemoryWrapper extends HierarchyCache implements IImportChanges, IEx
                     return false;
                 }
 
+                // check if the parent ID is known on the device
+                if (!isset($folder->parentid) || $folder->parentid != "0" &&  !$this->GetFolder($folder->parentid)) {
+                    ZLog::Write(LOGLEVEL_DEBUG, sprintf("ChangesMemoryWrapper->ImportFolderChange(): Change for folder '%s' will not be sent as parent folder is not set or not known on mobile.", $folder->displayname));
+                    return false;
+                }
+
                 // load this change into memory
                 $this->changes[] = array(self::CHANGE, $folder);