On Sun, 2007-03-04 at 12:02 +0000, Henrik Lied wrote:
> Hi there,
>
> I'm creating a social network app. with lots of features. Among those
> features are the possibility of users creating groups. A group of
> course has an owner, and the owner is supposed to be able to assign
> moderators to that group. I have a mockup of a model, but I don't
> think it's good enough.
>
> Current model:
> class Group(models.Model):
> creator = models.ForeignKey(User, raw_id_admin=True,
> verbose_name='gruppeadmin', related_name='Creator of the group')
> name = models.CharField(maxlength=200, verbose_name='gruppenavn')
> slug = models.SlugField(prepopulate_from=['name',], unique=True)
>
> moderator_1 = models.ForeignKey(User, raw_id_admin=True,
> null=True, blank=True, related_name='Moderator number one')
> moderator_2 = models.ForeignKey(User, raw_id_admin=True,
> null=True, blank=True, related_name='Moderator number two')
> moderator_3 = models.ForeignKey(User, raw_id_admin=True,
> null=True, blank=True, related_name='Moderator number three')
> moderator_4 = models.ForeignKey(User, raw_id_admin=True,
> null=True, blank=True, related_name='Moderator number four')
> moderator_5 = models.ForeignKey(User, raw_id_admin=True,
> null=True, blank=True, related_name='Moderator number five')
>
> description = models.TextField('beskrivelse')
> category = models.ForeignKey(GroupCategory,
> verbose_name='gruppekategori')
>
> creation_date = models.DateTimeField(auto_now_add=True)
>
> --------
>
> Have any of you created a similar feature, or is able to give me some
> feedback on how it's done properly? :-)
I think you might have overlooked a good use for the ManyToMany field
here. The link between moderators and a Group is many-to-many (each
group has many moderators and each moderator can potentially belong to
many groups). I would replace moderator_1 through _5 with a single
moderator attribute that is ManyToMany(User, ...).
If you absolutely must restrict the number of moderators to five,
maximum, then you will need to write a custom validator to check that
feature.
Regards,
Malcolm
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