belongs_to关系不起作用

Question

I have following active record class

class Car < ActiveRecord::Base
  belongs_to :owner
end

in the code when I try this

Car.first.owner

it gives me error "undefined method owner"

Can any one plz let me now if I'm missing any thing

Answer 1

You need to write the relation on the Owner side : has_one :car or has_many :cars depending on your needs.

class Car < ActiveRecord::Base
    belongs_to :owner
end

class Owner < ActiveRecord::Base
    has_one :car
end