core/db/migrate/20150823072955_create_comable_option_values.rb
class CreateComableOptionValues < ActiveRecord::Migration
def change
create_table :comable_option_values do |t|
t.references :option_type, null: false
t.string :name, null: false
t.timestamps null: false
end
add_index :comable_option_values, [:option_type_id, :name], unique: true
end
end