From: Todd Benson <caduceass@...>
Date: 2007-12-03T09:06:33+09:00
Subject: Re: Modules in rails? ( controllers or models?)

On Dec 2, 2007 5:40 PM, malugu satyajit <malugu.satyajit@gmail.com> wrote:
> Hello,
>
> I have an rails application that has almost similar function for three
> classes. So I am thinking to create a parent class and then the sub classes
> inherit from it. But rails already inherits from ActiveRecord(models) or
> ApplicationController(controller).
>
> So how can I inherit from others classes. My my ruby knowledge it is modules
> and then you mixin the module in your class.
>
> Now my question, where you write the module in rails is it in controller or
> model? Can some one provide me links or guidance.

Well, from a kindergartener's perspective (namely, mine),  I would
think that if your classes represent tuples of data in a database,
they would be models, and you would add functionality by having the
model classes (those that inherit from ActiveRecord::Base) require the
necessary mixin themselves, or make use of #extend.  I think, however,
it is highly dependent on your situation.

I'm sure you can find some best practices advice from the rails list.
The one I have bookmarked is:
http://groups.google.com/group/rubyonrails-talk.

Todd