search for: foreign_type

...reate_table "nodes_to_nodes", :id => true, :primary_key => "n2n_id", :force => true do |t| t.column :node_id, :integer, :default => 0, :null => false t.column :node_fk_id, :integer, :default => 0, :null => false t.column :position, :integer t.column :foreign_type, :string end class NodesToNodes < ActiveRecord::Base set_primary_key :c2c_id acts_as_list :scope => :node end So basically I could have all sorts of Node types that used STI off the original Node table. And the if Foo < Node and Bar < Node I could set in Foo''s model that...

Regarding validates_associated... Let''s say I have: article belongs_to author But for whatever reason, I want an article to also be written anonymously and therefore not require an author. Then I have: Article: belongs_to :author validates_associated :author But I DON''T have validates_presence_of. What I want to do is validate that an author is valid --if it is