RailsAdminセットアップ on Rails4 and Heroku - Qiita

class AdminUser < ActiveRecord::Base # Include default devise modules. Others available are: # :confirmable, :lockable, :timeoutable and :omniauthable devise :database_authenticatable, # :registerable, :recoverable, :rememberable, :trackable, :validatable end class DeviseCreateAdminUsers < ActiveRecord::Migration def change create_table(:admin_users) do |t| ## Database authenticatable t.string :em