Question

I have the following model:

class item < ActiveRecord::Base
  has_one :price
end

class price < ActiveRecord::Base
  belongs_to :item
end


def 
  if !@item.price
    @item.price.build
  end
end

I get:

 undefined method `build' for nil:NilClass

How would I build the price for an item if the price doesn’t exit in the prices table?

thx

Answer 1

@price = @item.price || @item.build_price

http://api.rubyonrails.org/classes/ActiveRecord/Associations/ClassMethods.html