def adjust_history(self, obj, action='U'):
'''
Adjusts the latest entry to accomidate any changes not picked up
Likely changes are ManyToManyFields
'''
delta = self.get_difference(obj)
if delta:
ct = ContentType.objects.get_for_model(obj)
try:
history = get_active_histories().filter(content_type=ct,
object_id=obj.pk).latest()
except FullHistory.DoesNotExist:
history = FullHistory(content_object=obj,
request=get_or_create_request(),
action=action,
data=dict())
if history.action == 'C':
for key, value in delta.items():
delta[key] = (value[1],)
data = history.data
data.update(delta)
history.data = data
history.info = history.create_info()
history.save()
self.prepare_initial(obj)
post_adjust.send(sender=type(obj),
fullhistory=history,
instance=obj)
return history
return None
