Oh yeah, of course. Indeed, good work Siegfried. While reading the last few comments one possible fix came into my mind: Let's maintain a (temporary) helper table called '_fix_cache' with (table_name VARCHAR, id INTEGER) and create a 'BEFORE DELETE' trigger on each cached table (interpretation, manifestation, mimetype, ...) which inserts the table name and the deleted id in _fix_cache once a row in the related table got deleted. All we now have to do is run a 'SELECT * FROM _fix_cache' after deleting the events. If some rows in manifestation/interpretation/... got deleted while deleting events we get back the the ids of the cached values which we then can delete from the caches. I know that's not optimal, but looks like the only solution to me. This should not be a *big* performance issue, since the number of rows in the helper table should be very low. I'll hack on a prototype tomorrow, and see how it works.
-- You received this bug notification because you are a member of Zeitgeist Framework Team, which is subscribed to Zeitgeist Framework. https://bugs.launchpad.net/bugs/598666 Title: Invalid cache access (was: Error when trying to fetch items) Status in Zeitgeist Framework: Triaged Bug description: When i try to fetch all items in one query i get Error from Zeitgeist engine: org.freedesktop.DBus.Python.KeyError: Traceback (most recent call last): File "/usr/lib/pymodules/python2.6/dbus/service.py", line 702, in _message_cb retval = candidate_method(self, *args, **keywords) File "/usr/local/share/zeitgeist/_zeitgeist/engine/remote.py", line 254, in FindEvents event_templates, storage_state, num_events, result_type, sender)) File "/usr/local/share/zeitgeist/_zeitgeist/engine/main.py", line 378, in find_events return self._find_events(1, *args) File "/usr/local/share/zeitgeist/_zeitgeist/engine/main.py", line 366, in _find_events return self.get_events(rows=result, sender=sender) File "/usr/local/share/zeitgeist/_zeitgeist/engine/main.py", line 188, in get_events events[event.id].append_subject(self._get_subject_from_row(row)) File "/usr/local/share/zeitgeist/_zeitgeist/engine/main.py", line 160, in _get_subject_from_row getattr(self, "_" + field).value(row["subj_" + field])) File "/usr/local/share/zeitgeist/_zeitgeist/engine/sql.py", line 422, in value return self._inv_dict[id] KeyError: 138 This looks serious _______________________________________________ Mailing list: https://launchpad.net/~zeitgeist Post to : zeitgeist@lists.launchpad.net Unsubscribe : https://launchpad.net/~zeitgeist More help : https://help.launchpad.net/ListHelp
