class CreateSongOccurencesTable < ActiveRecord::Migration[5.0] def up create_table :song_occurences, :id => false do |t| t.string :uuid, :primary => true, :null => false t.string :show_uuid t.string :song_ref_uuid t.integer :position end add_index :song_occurences, [:uuid, :song_ref_uuid] end def down drop_table :song_occurences end end