On Mon, Jan 28, 2013 at 6:27 AM, 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 > 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 think you have it right when you mentioned using polymorphic associations. it is fine to leave the polymorphic association nil if the ad has no details if that's what you're worried about. > > 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 > > -- > You received this message because you are subscribed to the Google Groups > "Ruby on Rails: Talk" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msg/rubyonrails-talk/-/GLpFbbHm0ogJ. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- ------------------------------------------------------------- visit my blog at http://jimlabs.heroku.com -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
