Custom folder structure: verification residence for Madrid

app/models/custom/verification/residence.rb

@@ -0,0 +1,29 @@
+
+require_dependency Rails.root.join('app', 'models', 'verification', 'residence').to_s
+
+class Verification::Residence
+
+  validate :postal_code_in_madrid
+  validate :residence_in_madrid
+
+  def postal_code_in_madrid
+    errors.add(:postal_code, I18n.t('verification.residence.new.error_not_allowed_postal_code')) unless valid_postal_code?
+  end
+
+  def residence_in_madrid
+    return if errors.any?
+
+    unless residency_valid?
+      errors.add(:residence_in_madrid, false)
+      store_failed_attempt
+      Lock.increase_tries(user)
+    end
+  end
+
+  private
+
+    def valid_postal_code?
+      postal_code =~ /^280/
+    end
+
+end