2010/10/4 Michael Bayer <mike...@zzzcomputing.com>:
>
> On Oct 4, 2010, at 1:34 AM, Anton Shestakov wrote:
>
>> Hello all,
>>
>> So, here's simple script that produces the error: http://pastie.org/1197851
>> please take a look at it, the script isn't big at all and there's
>> traceback for the error as well. In short, it issues a query to get a
>> simple object (Post) with one-to-many relation tag_links (i.e. array
>> of PostTagLink instances), then it does post.tag_links = [] and tries
>> to Session.commit() it. And fails terribly.
>>
>> Guts tell me I may be doing something wrong, but I don't know what
>> exactly. I'll greatly appreciate your help.
>>
>> Best regards, Anton Shestakov.
>
> you need delete-orphan cascade.   
> http://www.sqlalchemy.org/docs/orm/tutorial.html#configuring-delete-delete-orphan-cascade
>

Oh. Thanks for your answer. I feel stupid for asking this question now
that is answered in the tutorial. Well, serves me right.

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