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[Markus Korn <thekorn@xxxxxx>]

I've added a prototype of my idea as described in my last comment, if we want to do it this way, we have to bump the sql-schema-version, I guess.
I'm not completely sure if this is the way to go, but given the fact that the number of entries in the _fix_cache table should be *very* low over time this should not be a big performance issue, and works well.
Comments welcome.

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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