Chris@909: class CreateChangesetParents < ActiveRecord::Migration
Chris@909:   def self.up
Chris@909:     create_table :changeset_parents, :id => false do |t|
Chris@909:       t.column :changeset_id, :integer, :null => false
Chris@909:       t.column :parent_id, :integer, :null => false
Chris@909:     end
Chris@909:     add_index :changeset_parents, [:changeset_id], :unique => false, :name => :changeset_parents_changeset_ids
Chris@909:     add_index :changeset_parents, [:parent_id], :unique => false, :name => :changeset_parents_parent_ids
Chris@909:   end
Chris@909: 
Chris@909:   def self.down
Chris@909:      drop_table :changeset_parents
Chris@909:   end
Chris@909: end