hey kevin -
sorry i didnt get around to answering this....its because yeah, what
you have below is more or less how that can be done right now, only
because a nicer interface hasnt been implemented yet.
heres another way to do it:
for obj in session.dirty:
history = obj._attribute_manager.attribute_history(obj)
for key, value in history.iteritems():
hist = value.history(passive=True) # handles LazyLoaders,
'passive'
means dont execute them
added = hist.added_items()
deleted = hist.deleted_items()
if len(added) or len(deleted):
print "Changed: ", key, " Added:", added, " Deleted:",
deleted
We can make whatever interface we want for this...feel free to suggest.
On Jun 7, 2006, at 10:47 AM, Kevin Deenanauth wrote:
> Kevin Deenanauth <kdeenanauth <at> pegasys.cc> writes:
>
>>
>>
>> This code:
>>
>> session = objectstore.get_session()
>> print session.dirty
>>
>> ...gives me a list of what objects are going to be updated. How
>> do I find out
>> what exact attributes changed?
>>
>> Thanks for Sqlalchemy! I came from the SQLObjects side and this
>> stuff is much
>> more robust
>> -Kevin
>>
>
>
> I've found one solution:
> session = objectstore.get_session()
>
> for obj in session.dirty:
> for col in obj.mapper.table.columns:
> prop = obj.mapper._getpropbycolumn(col, False)
> if prop is None:
> continue
> history = prop.get_history(obj, passive=True)
> a = history.added_items()
> if len(a):
> print 'changed:',type(prop),prop.key,a
>
> It does feel hackish, but it works. If anyone knows a better
> solution, let me
> know! =)
>
>
>
>
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