Question

I have a model named Container. This model just has a list of associated Links. So I created tables containers, links and containers_links. Now I want to connect my two models. So I did

class Container < ActiveRecord::Base
  has_many :links, :through => :containers_links
end

class Links < ActiveRecord::Base
  has_many :containers, :through => :containers_links
end

But I have an error because I don’t have reflection with containers_links in my model. I can add something like

has_many :containers_links

But I don’t have a model ContainersLinks (and I don’t want to create one). What should I do?

Answer 1

You can use has_and_belongs_to_many relationship

class Container < ActiveRecord::Base
  has_and_belongs_to_many :links
end

class Links < ActiveRecord::Base
  has_and_belongs_to_many :containers
end

But you still need to create join table.