2011/9/20 Łukasz Rekucki <lreku...@gmail.com>:
> On 20 September 2011 15:52, Roald de Vries <downa...@gmail.com> wrote:
>> Hi all,
>>
>> Is there a fundamental reason that I'm missing (other than "nobody's taken
>> the trouble of writing it") that I can't do the following? If there isn't
>> I'll create a ticket for it.
>>
>> class R(Model):
>> user = ForeignKey(User)
>> my_model = ForeignKey('MyModel')
>> comment = CharField(max_length=100, blank=True)
>>
>> class MyModel(Model):
>> users = ManyToManyField(User, through=R, null=True)
>>
>> m = MyModel.objects.create()
>> u = User.objects.create_user('roald', 'downa...@gmail.com', 'password')
>>
>>
>> # these things I can't do:
>> m.users.add(u)
>> m.users.add(u, comment='Blablabla')
>>
>> Cheers, Roald
>>
>
> I'm 100% sure there's *at least one* ticket for this. You just need to
> search for it and you'll probably find the discussion of this too.
There certainly is "at least one" ticket :-)
There's the original ticket that introduced m2m intermediate models:
https://code.djangoproject.com/ticket/6095
And there's this one:
https://code.djangoproject.com/ticket/9475
which asks for this feature specifically.
Back when the feature was added (#6095), we discussed add() with
intermediate models that have extra data. If you read the full ticket
history for #6095, and #9475, you can see the edge cases that existed
at the time. Ultimately, we punted on the issue in the interest of
delivering *something*.
I'm certainly interested in the idea, as long as the edge cases can be
managed and/or explained.
Yours
Russ Magee %-)
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