And how can you do this via explicit SQL?
On 23 сент, 18:32, mraer <[EMAIL PROTECTED]> wrote:
> Suppose I have two classes of objects which have a reference to each
> other:
>
> Class A:
> b
>
> Class B:
> a
>
> Both references are mandatory so nullable = False
> I use post_update = True in relation function and use_alter = True in
> ForeignKey constructor
>
> After it I try to add two objects:
>
> session = Session()
> a = A()
> b = B()
> a.b = b
> b.a = a
> session.commit()
>
> and catch an exception, because with post_update = True NULL inserted
> in DB, but without post_update= True I can't add two circular
> depending objects.
>
> How to solve with situation to add such pair of objects into DB?
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