class CreateMashes < ActiveRecord::Migration def self.up create_table :mashes do |t| t.integer :mash_tournament_id, :null => false t.integer :map_a_id t.integer :map_b_id t.integer :winner_id t.integer :mash_tournament_round_id t.timestamps end add_index :mashes, [:winner_id] add_index :mashes, [:mash_tournament_id] end def self.down remove_index :mashes, [:winner_id] remove_index :mashes, [:mash_tournament_id] drop_table :mashes end end