add wrapper method

app/models/validations/setup_validations.rb

@@ -1,7 +1,13 @@
 module Validations::SetupValidations
   def validate_intermediate_rent_product_name(record)
-    if record.rent_type == 5 && record.intermediate_rent_product_name.blank?
+    if intermediate_product_rent_type?(record) && record.intermediate_rent_product_name.blank?
       record.errors.add :intermediate_rent_product_name, I18n.t("validations.setup.intermediate_rent_product_name.blank")
     end
   end
+
+private
+
+  def intermediate_product_rent_type?(record)
+    record.rent_type == 5
+  end
 end