class CreateGames < ActiveRecord::Migration def change create_table :games do |t| t.references :parent, index: true t.string :name t.integer :min_players_per_team t.integer :max_players_per_team t.integer :min_teams_per_match t.integer :max_teams_per_match t.string :scoring_method t.timestamps end add_index :games, :name, unique: true end end