Here you go :)

https://docs.djangoproject.com/en/dev/topics/db/models/#proxy-models

On Thu, Jun 23, 2011 at 10:12 PM, Rich Jones <miser...@gmail.com> wrote:

> Where would _meta need to go?
>
> This code does appear to work the way I am describing it, this is just
> a slightly stripped down of a real application I have made.
>
> R
>
> On Jun 23, 4:59 pm, "Cal Leeming [Simplicity Media Ltd]"
> <cal.leem...@simplicitymedialtd.co.uk> wrote:
> > I might be wrong here, but I'm fairly sure that the below example you
> pasted is invalid code (i.e. you need to add a proxy _meta??).
> > My apologies if I'm wrong though, as I have never encountered a need to
> do this before, and just going off vague memory.
> > Cal
> > On 23/06/2011 19:24, Rich Jones wrote:Other than the convenience of
> writing them, I can't seem to find any advantages of using model
> inheritance. Please allow me to explain the trouble I am having with an
> example. Suppose, class Post(models.Model): title =
> models.CharField(max_length=200) user_owner_id = models.ForeignKey(User) def
> __unicode__(self): return self.title class BetterPost(Post): description =
> models.CharField(max_length=200) def __unicode__(self): return self.title
> Now, in the template: {% with profile.user.post_set.select_related as posts
> %} {% for post in posts %} {{post}} {% empty %} No posts! {% endfor %} {%
> endwith %} {% with profile.user.betterpost_set.select_related as posts %} {%
> for post in posts %} {{post}} {% empty %} No posts! {% endfor %} {% endwith
> %} If there are 2 'Posts' and 1 'BetterPost', the template code will print
> all of the posts in the first loop, then none in the second loop set. So why
> would I use model inheritance if this is the kind of behavior I can expect?
> If I can't get a set and can't access the fields, why wouldn't I just copy
> the fields into BetterPost rather than extending Post? Thank you for
> reading! R
>
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