#25343: pk attribute not set when having own primary key
-------------------------------------+-------------------------------------
Reporter: IlianIliev | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 1.8
(models, ORM) |
Severity: Normal | Resolution:
Keywords: | Triage Stage:
| Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by IlianIliev):
Replying to [comment:4 carljm]:
> Is this really your exact code? Unless you have `null=True` on the
`language` field, that code should raise a database error like "null value
not allowed in column 'language'".
>
> But it looks like your database is automatically setting a value for
that field instead of raising an error. So maybe your database schema
doesn't match your model definition? What database are you using, and what
is the actual schema for that table? Did Django create it, or did you
create it manually?
>
> If you set a value for the `language` field, that will be the value of
the `pk` attribute.
>
> If you don't want to have to explicitly set a value for the primary key,
you should be using `AutoField`, not `IntegerField` (or just let Django
automatically add an `AutoField` named `id`, as it does if you don't set
`primary_key=True` on any of your fields).
No actually the exact code is:
{{{
class Language(models.Model):
language = models.IntegerField(verbose_name='Language',
primary_key=True) #, choices=LANGUAGES, max_length=2)
code = models.CharField(verbose_name='Language code (2 chars)',
blank=False, max_length=2)
priority = models.PositiveIntegerField(verbose_name="Priority",
default=0, null=False, blank=True)
}}}
it is a legacy code, and I am not sure how the DB has been created but I
can reproduce it if I recreate the table with syncdb in a new DB (sqlite).
The value is automatically autoincremented.
I also found the the `language` property is also not set in the object
after create. However after getting the object from the DB everything is
fine.
--
Ticket URL: <https://code.djangoproject.com/ticket/25343#comment:5>
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