Re: saving several models with one save() call

Exactly i dont know OneToOneField() field's data type. But you can
try that,
b=B(title='333', altems = a.id)
b.save()

On Aug 24, 1:28 am, ernando <dmitry.home...@gmail.com> wrote:
> Hi all,
>
> maybe it's newbie question but I wasn't able to find clear answer/
> solution on it.
>
> For example, we have the following models:
>
> class A(models.Model):
>     id = models.AutoField(primary_key=True)
>     title = models.CharField(max_length=30)
>
> class B(models.Model):
>     id = models.AutoField(primary_key=True)
>     title = models.CharField(max_length=30)
>     aItems = models.OneToOneField(A)
>
> And try to save them in the following way:
>
> a = A(title="123")
> b = B(title="333", aItems = a)
> b.save()
>
> This code runs with the error: (1364, "Field 'aItems_id' doesn't have
> a default value")
> if I firstly save a object - everything goes smoothly. So, the
> question is - should we always save all related objects manually?
> According to django docs we have to create object at first. But that's
> now always convenient - e.g. I receive full model from the 3rd part
> service and want to save it into DB with one call and not do it for
> each item.
>
> Regards,
> Dmitry

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