On Nov 9, 2:36 am, Malcolm Tredinnick <[EMAIL PROTECTED]>
wrote:
> On Thu, 2007-11-08 at 09:11 -0800, Xan wrote:
> > Hi,
>
> > I have these models:
>
> > class A(models.Model):
>
> > [...]
> > def __str__(self):
> > return "(%s, %s)" % (self.estudi, self.curs)
>
> > class Admin:
> > pass
>
> > and
>
> > class B(models.Model):
>
> > estudi_oferit = models.ManyToManyField('A', blank=True, null=True)
>
> > class Admin:
> > list_display = ('tipus', 'codi', 'nom', 'adreca', 'localitat',
> > 'cp',
> > 'zona_concurs', 'ordre_concurs', 'estudi_oferit')
>
> > and when I list B elements in admin mode, in puts me address memory of
> > objects instead of displaying field A as I define in __str__
>
> You have not defined __str__ on B, so this isn't entirely unexpected
> (although I am not completely sure what you're seeing, but anything is
> not unexpected here).
>
> Note that the estudi_oferit field is many-to-many, so it has no
> "natural" way to be represented as a string. After all, it could be
> referring to 10,000 objects at the other end. There's no way to display
> that naturally.
I'mt not agree with you: there is a natural way for displaying
"estudi_oferit": list all of estudi_oferit's that has one instance.
>
> Explicitly define a __str__ method on B that displays the fields you
> want. Django's default __str__ is rarely the right thing to use.
If I put __str__ in B, then I don't use admin list_display (because it
overwrites it).
I consider that I only have to define __str__ in A, not in B, because
I want to display A objects not B. I'm not sure if you understand it?
Thanks in advance,
Xan.
>
> Regards,
> Malcolm
>
> --
> The cost of feathers has risen; even down is
> up!http://www.pointy-stick.com/blog/
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