This is exactly it, I'm trying to add the topics behavior to the default
behavior of universities and University.all just returns []

How do I change the University? I was unable to find references to it.

2011/1/21 Frederick Cheung <[email protected]>

>
>
> On Jan 21, 10:03 pm, Pedro Bernardes <[email protected]> wrote:
> > Hi, I'm new to this list and to rails, so I'm sorry if this subject is
> > repetead or too obvious.
> >
> > I have two models: Topic and University, both in production. I want to
> make
> > University to inherit from Topic, but when I do this:
> >
> >       University < Topic
> >
> > My universities data just disapear (and reapears if the changes are
> undone).
> >
>
> Are you trying to setup a single table inheritance type thing? When
> you say that your universities data disappears, do you mean that
> University.all no longer returns any data?
> Switching from your previous setup to a single table inheritance
> situation means that mongomapper will be looking in the topics
> collection when you do University.all, so I'm not surprised that your
> university data would appear to vanish, if you haven't done anything
> to move it from its previous collection.
>
> Fred
>
>
> > I'm using mongomapper and mongodb. The code is pretty big sp I'll post
> then
> > only if necessarily. I think this must be easy to solve.
> >
> > ps: I've tried the deprecated _type but didn't work.
> >
> > Thanks !
>
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