completed SMS gateway project

app/models/admin_user.rb

@@ -0,0 +1,11 @@
+class AdminUser < ApplicationRecord
+  has_secure_password
+
+  validates :email, presence: true, uniqueness: true, format: { with: URI::MailTo::EMAIL_REGEXP }
+  validates :name, presence: true
+  validates :password, length: { minimum: 8 }, if: -> { password.present? }
+
+  def update_last_login!
+    update!(last_login_at: Time.current)
+  end
+end