DVGM/db/migrate/20170331102612_create_users.rb

class CreateUsers < ActiveRecord::Migration[5.0]
  def change
    create_table :users do |t|
      t.string :login
      t.string :role
      t.string :crypted_password
      t.string :password_salt
      t.string :persistence_token

      t.timestamps
    end
  end
end