Rails - May 2005 - Naming your model

class Company < ActiveRecord::Base
  belongs_to :category, :class_name => ''CompanyCategory''
  ...
end



On 5/28/05, Robert Mannl <ro-x0ewNDjvrP1m7dl9lghbdg@public.gmane.org>
wrote:
> Hi!
> 
> I wanted to start an discussion about model naming, and ask you how you
> do it. There''s one problem that puts me a little bit off when
designing
> a Rails app.
> 
> Say we''re coding a yellow-pages type of website. We have
Companies, and
> we have Categories (Grocery, Hardware store, etc..). We also want to
> have classifieds on the website. We''ll call the model for the
> classifieds "Ad". We also have Categories for the Classifieds, as
we
> want things like "Looking for", and "Selling", etc.
> 
> See the Problem? We have the following models:
> 
> Company and Category
>  and
> Ad and Category
> 
> Two Category models.
> 
> Ok, we rewrite it to
> Company and CompanyCategory
>  and
> Ad and AdCategory
> 
> That''s the way I do it. But it''s just ugly:
> 
> <%= @company.company_category.name %>
> 
> <%= @company.category.name %>
> would be much more beautiful.
> 
> 
> Any ideas? How do you do it?
> 
> 
> Rob
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

I''m assuming that a Company is different from an Ad, and a
CompanyCategory is different from an AdCategory.  In that case, you''d
have


class Company < ActiveRecord::Base
 belongs_to :category, :class_name => ''CompanyCategory''
 ...
end

class Ad < ActiveRecord::Base
 belongs_to :category, :class_name => ''AdCategory''
 ...
end

and of course the CompanyCategory and AdCategory classes.

Take a look at the AR docs.  Basically, all you''re doing here is
saying, "Company has a relationship to a category, find it with
category_id, but make sure you treat it as a CompanyCategory." 
Likewise with the Ad and AdCategory.



On 5/28/05, Robert Mannl <ro-x0ewNDjvrP1m7dl9lghbdg@public.gmane.org>
wrote:
> Ok, but I can''t have two models:
> 
> class Company < ActiveRecord::Base
>   belongs_to :category, :class_name =>
''CompanyCategory''
>   ...
> end
> 
> and
> 
> class Company < ActiveRecord::Base
>   belongs_to :category, :class_name => ''AdCategory''
>   ...
> end
> 
> 
> can I?
> 
> 
>

Hi!

I wanted to start an discussion about model naming, and ask you how you 
do it. There''s one problem that puts me a little bit off when designing
a Rails app.

Say we''re coding a yellow-pages type of website. We have Companies, and
we have Categories (Grocery, Hardware store, etc..). We also want to 
have classifieds on the website. We''ll call the model for the 
classifieds "Ad". We also have Categories for the Classifieds, as we 
want things like "Looking for", and "Selling", etc.

See the Problem? We have the following models:

Company and Category
 and
Ad and Category

Two Category models.

Ok, we rewrite it to
Company and CompanyCategory
 and
Ad and AdCategory

That''s the way I do it. But it''s just ugly:

<%= @company.company_category.name %>

<%= @company.category.name %>
would be much more beautiful.


Any ideas? How do you do it?


Rob

Ok, but I can''t have two models:

class Company < ActiveRecord::Base
  belongs_to :category, :class_name => ''CompanyCategory''
  ...
end

and 

class Company < ActiveRecord::Base
  belongs_to :category, :class_name => ''AdCategory''
  ...
end


can I?

Ok, true, you''re right
thanks alot =D

There''s always more to learn -

Rob