cosmetics: cosmetics, abstract a function

radicale/app/proppatch.py

@@ -80,10 +80,10 @@ def xml_proppatch(base_prefix: str, path: str,
     all_props = radicale_item.check_and_sanitize_props(all_props_with_remove)
     if share and share_overlay and _sharing is not None:
         # _sharing is not None: always the case, but makes mypy happy
-        _sharing.database_update_sharing(ShareType=share['ShareType'],
-                                         PathOrToken=share['PathOrToken'],
-                                         OwnerOrUser=share['User'],
-                                         Properties=cast(Dict[str, str], all_props))
+        _sharing.sharing_collection_update(ShareType=share['ShareType'],
+                                           PathOrToken=share['PathOrToken'],
+                                           OwnerOrUser=share['User'],
+                                           Properties=cast(Dict[str, str], all_props))
     else:
         if collection is not None:
             # always the case, but makes mypy happy