best practices for GenericForeignKeys in reusable apps

[bobhaugen]

This is for http://code.google.com/p/django-attachments/
which I will soon incubate at http://code.google.com/p/pinax-cohousing/

Also previously announced in this group in this thread:
http://groups.google.com/group/django-hotclub/browse_thread/thread/467e910045df5848

I'm looking for good reusable apps to emulate, that link to domain
objects using GenericForeignKeys.

Also trying to enumerate the components, classes, methods, template
tags, templates, etc. involved in a good solution.

Where good = simple, clean, and encapsulated in reusable app, so
reusers need to do minimal work.
And of course those criteria may conflict with each other...

In #django-hotclub IRC, Kellen`suggested contrib.comments.
I'm also looking at django-threadedcomments, especially as
incorporated into pinax.

So that's apps-to-emulate. Anything better or interestingly different
in approach?

Elements of a good solution:
* GenericForeignKey, of course.
* Custom Manager?
* some urlpatterns and views
* template tags
* template components for inclusion, a la /pinax/projects/
complete_project/templates/threadedcomments/comments.html

Anything else?

(In case it ain't clear, I am also trying to learn GenericForeignKeys
during this project...)

[Nicola Larosa]

bobhaugen wrote:
> So that's apps-to-emulate. Anything better or interestingly different
> in approach?

django-tagging, I'd say.

--
Nicola Larosa - http://www.tekNico.net/

A common science fiction trope involves aliens intercepting our
television shows and being so impressed that they use it as a basis
for their entire civilization. That's pretty egotistical. Even human
beings don't base their entire lives on one long-defunct television
show. Well, except for Firefly fans. - Lore Sjöberg, June 2008

[bobhaugen]

On Nov 20, 11:31 am, Nicola Larosa <nicola.lar...@gmail.com> wrote:
> bobhaugen wrote:
> > So that's apps-to-emulate. Anything better or interestingly different
> > in approach?
>
> django-tagging, I'd say.

That was one of the apps I started out to look at, but all the Pinax
apps that use tags seem to add TagField to their domain models. And I
don't think attachments should require domain model changes.

Any other reason I should continue to look at django-tagging for ideas?

[Eric Drechsel]

django-tagging works without modifying the model: just call
tagging.register(YourModel)

The TagField adds some helper methods, adds a field to ModelForm
forms, etc I believe. Look at http://django-tagging.googlecode.com/svn/trunk/docs/overview.txt

[bobhaugen]

On Nov 21, 4:34 am, Eric Drechsel <ericd...@gmail.com> wrote:
> django-tagging works without modifying the model: just call
> tagging.register(YourModel)

Thanks, I did not know that. I'll check it out again.

Doc says that feature is new, so maybe was not available when the
Pinax gang started to use it.