On Sun, Jan 27, 2013 at 11:27 PM, oto iashvili
<[email protected]>wrote:

> hi,
>
> i' trying to re-create my project from php to rails. But now Im faced with
> a pb to witch I had solution with php, but I cant figure how to make it
> work with rails
>
> here my tables
>
> ads
>   id
>   category_id
>   title
>   text
>
> ad_real_estate_details
>   id
>   ad_id
>   nb_room
>   floor
>
> ad_car_details
>   id
>   ad_id
>   color
>   brand
>
> here what I succeed to do
>
>
> class Ad < ActiveRecord::Base
>   attr_accessible :category_id :title, :text, :ad_real_estate_details
>
This should be :add_real_estate_details_attributes

>   has_one :ad_real_estate_details
>   accepts_nested_attributes_for :ad_real_estate_details, allow_destroy:
> true
> end
>
> class AdRealEstateDetail < ActiveRecord::Base
>   belongs_to :ad
>   validates :ad_id, presence: true
> end
>
> but this only work for other category than real_estate
>
> so I was thinking of polymorphism, but polymorphism mean I should add a
> reference in my "ad" table to the detail tables, and remove annonce_id from
> detail tables , what I thing is non-sense as some ads can have no details,
> but details are non-sense without an ad.
>
> I was also thinking of a class AdDetails, and  AdRealEstateDetail would
> inherite from it, but this is not possible with rails as all subclasses
> will share the same table
>
> does anyone have a solution for this kind of problem ?
>
> thanks
>
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-- 
Nicolas Desprès

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