#27311: Assigning ForeignKey fields in migrations
-------------------------------------+-------------------------------------
Reporter: Odero | Owner: nobody
Type: Bug | Status: new
Component: Migrations | Version: 1.10
Severity: Normal | Resolution:
Keywords: migrations, | Triage Stage:
foreignkey | Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Changes (by Tim Graham):
* component: Uncategorized => Migrations
Old description:
> Trying to create the migration below which is failing. It seems like the
> same issue discussed and resolved here
> https://code.djangoproject.com/ticket/24282
>
> {{{
> def generate_invoices(apps, schema_editor):
> A = apps.get_model('app1', 'A')
> B = apps.get_model('app1', 'B')
> User = apps.get_model('accounts', 'User')
>
> a = A.objects.last()
>
> b = B(
> client=a.user),
> status=5
> )
> invoice.save()
>
> }}}
>
> Also tried
>
> {{{
> b = B(
> client=User.objects.get(pk=a.user.pk),
> status=5
> )
>
> }}}
>
> In both cases I get the error:
> {{{
> Cannot assign "<User: Some User>": "B.client" must be a "User" instance.
> }}}
New description:
Trying to create the migration below which is failing. It seems like the
same issue discussed and resolved in #24282.
{{{
def generate_invoices(apps, schema_editor):
A = apps.get_model('app1', 'A')
B = apps.get_model('app1', 'B')
User = apps.get_model('accounts', 'User')
a = A.objects.last()
b = B(
client=a.user,
status=5
)
b.save()
}}}
Also tried
{{{
b = B(
client=User.objects.get(pk=a.user.pk),
status=5
)
}}}
In both cases I get the error:
{{{
Cannot assign "<User: Some User>": "B.client" must be a "User" instance.
}}}
--
Comment:
I can't reproduce this. Could you provide a sample project and confirm
your Django version?
--
Ticket URL: <https://code.djangoproject.com/ticket/27311#comment:3>
Django <https://code.djangoproject.com/>
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