search for: nodes_nodes

Displaying 1 result from an estimated 1 matches for "nodes_nodes".

2007 Oct 22
1
self-referential habtm: why are my keys null?
...e are the migrations: class CreateNodes < ActiveRecord::Migration def self.up create_table :nodes do |t| t.column :name, :string end end def self.down drop_table :nodes end end class CreateNodesNodes < ActiveRecord::Migration def self.up create_table :nodes_nodes, :id => false do |t| t.column :parent_id, :integer t.column :child_id, :integer end end def self.down drop_table :nodes_nodes end end And here is the model: class Node < ActiveRecord::Base has_and_belongs_to_many :parents, :foreign_key => :chi...