On Mon, Dec 9, 2013 at 10:19 AM, Tamer Higazi <tamerito...@arcor.de> wrote: > Is there a way, to change the ZODB keys subcontent without to copy the > entire entry in the memory ?!
You should -- as suggested previously -- for mutable collections, use PersistentDict and PersistentList, otherwise insertions, deletions, and (for dict) reassigning values will not be detected as changes. The workaround if you absolutely must use a mutable Python built-in list or dict (as an attribute of an object subclassing Persistent), is to set myobject._p_changed = True for any object whose list or dict attributes have changes -- but really, you should just use PersistentDict, PersistentList, or BTrees equivalents. Additional reading: http://www.zodb.org/en/latest/documentation/guide/prog-zodb.html#modifying-mutable-objects http://stackoverflow.com/questions/5704589/zodb-not-able-to-commit Sean _______________________________________________ For more information about ZODB, see http://zodb.org/ ZODB-Dev mailing list - ZODB-Dev@zope.org https://mail.zope.org/mailman/listinfo/zodb-dev
