On Jan 16, 5:16 am, Malcolm Tredinnick <malc...@pointy-stick.com>
wrote:
> > How can I add m2m to both models without using third model with
> > foreign keys (or with it, but without extra ID field)? If to be
> > sincere it doesn't make much sense, but everything in Django should be
> > perfect :)
>
> You only specify the field on one model and it's available at both ends.
> This is a design feature so that you *don't* have to write the same
> thing twice. So the answer to your question is to specify the ManyToMany
> field on one model.
You're right.
> You need to go back and look at your original problem. You wanted forms
> with multiselect fields for both forms. So the real question is "how do
> you do that". I suspect the answer is that you have to manually
> construct one of the forms (which you can write a helper function to do
> if you need this in a lot of projects, or, if this only happens for one
> model, just write a single form class).
Thanks, will try. Current sollution (create table manually and specify
name/columns) is neither right or cute.
> The other answer is to rethink
> your data entry so that this kind of bi-directional multi-select isn't
> necessary. It's not a really common UI pattern and you can probably
> think of ways to avoid it.
I agree, but it's not my idea.
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