Merge admin and api users

app/models/admin_user.rb

@@ -0,0 +1,32 @@
+class AdminUser < User
+  devise :trackable, :timeoutable
+  # TODO: Foreign user will get email with activation link,email,temp-password.
+  # After activisation, system should require to change temp password.
+  # TODO: Estonian id validation
+
+  validates :username, :password, :country_code, presence: true
+  validates :identity_code, uniqueness: true, allow_blank: true
+  validates :identity_code, presence: true, if: -> { country_code == 'EE' }
+  validates :email, presence: true, if: -> { country_code != 'EE' }
+
+  validate :validate_identity_code
+  belongs_to :country_deprecated, foreign_key: :country_id
+
+  ROLES = %w(user customer_service admin)
+
+  def to_s
+    username
+  end
+
+  def country
+    Country.new(country_code)
+  end
+
+  private
+
+  def validate_identity_code
+    return unless identity_code.present?
+    code = Isikukood.new(identity_code)
+    errors.add(:identity_code, :invalid) unless code.valid?
+  end
+end