I can't make a guess without a script to reproduce it I'm afraid.
Sorry,
Simon
On Mon, Oct 14, 2019 at 8:35 AM natsjoo sodillepa <snats...@gmail.com> wrote:
>
> Ok,
>
> I have managed to get rid of the problem, but I'm don't like what is
> happening.
> Solution: remove a secondary relation from the model:
>
> model = relationship("Model", secondary='item_group', uselist=False)
>
>
> After this, the following code does do a proper delete of the items:
>
> for it in self.session.query(ItemMeta).filter_by(item_group=item_group).all():
> if type(it) == ItemMeta:
> item_group.items.remove(it)
> self.session.delete(it)
> self.session.commit()
>
>
> However, things are still not ideal. The following should work but doesn't:
>
> for item in item_group.items:
> self.session.delete(item)
>
> Then only half of the item get deleted, which is a bit weird.
>
> Anybody any thoughts on this? Why does a secondary relation of this kind of
> effect on a delete?
>
> Kinde regards,
> Nacho
>
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>
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