On May 22, 4:34 pm, akaariai <akaar...@gmail.com> wrote:
> So, you would want to do collection.songs.all() and have that ordered
> by the sequence defined in the m2m table? I agree - this seems to be
> somewhat hard currently.
I currently have a similar scheme in one of our projects, works fine
as far as I can tell:
class Categorie(Model):
# ....
class Blook(Model):
# ....
categories = models.ManyToManyField(
Category,
through='Classification',
related_name="blooks",
)
@property
def sorted_categories(self):
return self.categories.order_by("classifications__position")
class Classification(Model):
category = models.ForeignKey(
Category,
related_name="classifications"
)
blook = models.ForeignKey(
Blook,
related_name="classifications"
)
position = models.PositiveIntegerField(
_(u"Position"),
)
class Meta:
unique_together = (
("blook", "category"),
("blook", "position"),
)
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