class CreateTeams < ActiveRecord::Migration def up create_table :teams do |t| t.string :name, :null => false, :default => '' t.integer :max_members, :null => false, :default => 16 t.integer :captain_id, :null => false end add_index :teams, :name, :unique => true add_index :teams, :captain_id end def down remove_index :teams, :column => :captain_id remove_index :teams, :column => :name drop_table :teams end end