On Mon, 2009-02-23 at 12:23 -0800, knight wrote:
> Hi,
>
> I have models.py like this:
>
> class Media_biz(models.Model):
> ---
> default = models.BooleanField("Default", blank=True, null=True)
> ---
>
> def get_default_Media_biz():
> if Media_biz.objects.filter(default=True).count() != 0:
> return Media_biz.objects.filter(default=True)[0]
> else:
> return None
>
> class Metadata(models.Model):
> ---
> media_biz = models.ForeignKey('Media_biz',
> default=get_default_Media_biz)
> ---
>
> What I want is to set the default value of Media_biz in Metadata. The
> problem is:
> When I create a new database and run syncdb, I get:
> psycopg2.ProgrammingError: relation "cms_sample_media_biz" does not
> exist
>
> How can I check that the Media_biz table exist in the database?
You can't, very easily (without making direct SQL calls yourself and/or
being prepared to handle the PostgreSQL error).
The only way I can immediately think of around your problem is to remove
the "default" attribute whilst you run syncdb and then put it back in
afterwards, at which point it should work.
Regards,
Malcolm
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