CLDC-4188: Add validation between prevten and referral_register

block two other validations from previous years

app/models/lettings_log.rb

@@ -377,8 +377,12 @@ class LettingsLog < Log
   end
 
   def is_internal_transfer?
-    # 1: Internal Transfer
-    referral == 1
+    if form.start_year_2026_or_later?
+      referral_register == 2
+    else
+      # 1: Internal Transfer
+      referral == 1
+    end
   end
 
   def is_from_prp_only_housing_register_or_waiting_list?

app/models/validations/household_validations.rb

@@ -162,7 +162,7 @@ module Validations::HouseholdValidations
     # 27 Owner occupation (low-cost home ownership)
     # 28 Living with Friends or Family
     # 29 Prison / Approved Probation Hostel
-    if record.is_internal_transfer? && [3, 4, 7, 10, 13, 14, 19, 23, 24, 25, 26, 27, 28, 29].include?(record.prevten)
+    if record.is_internal_transfer? && [3, 4, 7, 10, 13, 14, 19, 23, 24, 25, 26, 27, 28, 29].include?(record.prevten) && !record.form.start_year_2026_or_later?
       label = record.form.get_question("prevten", record).present? ? record.form.get_question("prevten", record).label_from_value(record.prevten) : ""
       record.errors.add :prevten, :internal_transfer_non_social_housing, message: I18n.t("validations.lettings.household.prevten.internal_transfer", prevten: label)
       record.errors.add :referral, :internal_transfer_non_social_housing, message: I18n.t("validations.lettings.household.referral.prevten_invalid", prevten: label)
@@ -172,7 +172,13 @@ module Validations::HouseholdValidations
   def validate_referral(record)
     return unless record.owning_organisation
 
-    if record.is_internal_transfer? && record.owning_organisation.provider_type == "PRP" && record.is_prevten_la_general_needs?
+    if record.form.start_year_2026_or_later?
+      if record.is_internal_transfer? && record.owning_organisation.la? && ![30, 31, 32, 33, 35, 38, 6].include?(record.prevten)
+        label = record.form.get_question("prevten", record).present? ? record.form.get_question("prevten", record).label_from_value(record.prevten) : ""
+        record.errors.add :prevten, message: I18n.t("validations.lettings.household.prevten.general_needs.internal_transfer", prevten: label)
+        record.errors.add :referral_register, message: I18n.t("validations.lettings.household.referral.general_needs.internal_transfer", prevten: label)
+      end
+    elsif record.is_internal_transfer? && record.owning_organisation.provider_type == "PRP" && record.is_prevten_la_general_needs?
       record.errors.add :prevten, :internal_transfer_fixed_or_lifetime, message: I18n.t("validations.lettings.household.prevten.la_general_needs.internal_transfer")
       record.errors.add :referral, :internal_transfer_fixed_or_lifetime, message: I18n.t("validations.lettings.household.referral.la_general_needs.internal_transfer")
     end

config/locales/validations/lettings/household.en.yml

@@ -98,8 +98,12 @@ en:
           internal_transfer: "Answer cannot be %{prevten} as this tenancy is an internal transfer."
           la_general_needs:
             internal_transfer: "Answer cannot be a fixed-term or lifetime local authority general needs tenancy as it’s an internal transfer and a private registered provider is on the tenancy agreement."
+          general_needs:
+            internal_transfer: "Answer cannot be %{prevten} as this tenancy is an internal transfer. Internal transfers are for existing social tenants only, your answer to where the household was immediately before this letting shows the tenant was not in the social sector immediately prior to this letting."
 
         referral:
           prevten_invalid: "Answer cannot be internal transfer as the household situation immediately before this letting was %{prevten}."
           la_general_needs:
             internal_transfer: "Answer cannot be internal transfer as it’s the same landlord on the tenancy agreement and the household had either a fixed-term or lifetime local authority general needs tenancy immediately before this letting."
+          general_needs:
+            internal_transfer: "Answer cannot be internal transfer as the household situation immediately before this letting was %{prevten}. Internal transfers are for existing social tenants only, your answer to where the household was immediately before this letting shows the tenant was not in the social sector immediately prior to this letting."