Many-to-many relationships with additional columns - Django developers

Message from discussion Many-to-many relationships with additional columns

oggie rob

More options May 31 2007, 6:26 pm

From: oggie rob <oz.robhar...@gmail.com>

Date: Thu, 31 May 2007 22:26:06 -0000

Local: Thurs, May 31 2007 6:26 pm

Subject: Re: Many-to-many relationships with additional columns

  Reply to author
  |
  Forward
  | Print
  | View thread
  | Show original
  | Report this message
  | Find messages by this author
  

Yeah! This is much cleaner. I need to add ordering to some model
relations (i.e. represent all related values as an ordered list, where
relations can be shifted up & down) to the M2M field, it looks like it
would fit much easier using a manager & concrete Model subclass than
being restricted to a field.

I don't vote often, but +lots.

-rob

On May 31, 1:32 pm, "Marty Alchin" <gulop...@gamemusic.org> wrote:

> I've been giving a bit of thought into many-to-many relationships
> lately, and I (once again) ran across the task of creating a
> relationship that contained additional information. I know this has
> been bounced around before, but I can't seem to find any substantial
> discussions on the topic, so I wrote up a wiki article[1] with some of
> my thoughts.

> I'll be putting up the code I've got working so far that demonstrates
> that parts of what I wrote up are indeed possible. The rest should be
> as well, but it will probably take some extra discussion and possibly
> some patches to how related managers work. I'll deal with that once I
> figure out what all would be necessary.

> My main reason for bringing it here, however, is to ask if there are
> indeed some previous discussions that I should consider before I go to
> far in my experiments on this subject. Or if I'm just completely off
> my rocker.

> -Gul

> [1]http://code.djangoproject.com/wiki/ManyToManyManager

Reply to author Forward