Infer remaining renewal variables

app/models/case_log.rb

@@ -256,7 +256,14 @@ private
     self.nocharge = household_charge == "Yes" ? "No" : "Yes"
     self.layear = "Less than 1 year" if renewal == "Yes"
     self.underoccupation_benefitcap = "No" if renewal == "Yes" && year == 2021
-    self.homeless = "No" if renewal == "Yes"
+    if renewal == "Yes"
+      self.homeless = "No"
+      self.referral = "Internal transfer"
+    end
+    if needstype == "General needs"
+      self.prevten = "Fixed-term private registered provider (PRP) general needs tenancy" if managing_organisation.provider_type == "PRP"
+      self.prevten = "Fixed-term local authority general needs tenancy" if managing_organisation.provider_type == "LA"
+    end
   end
 
   def process_postcode_changes!

app/models/form.rb

@@ -114,7 +114,7 @@ class Form
   end
 
   def invalidated_page_questions(case_log)
-    #we're already treating address fields as a special case and reset their values upon saving a case_log
+    # we're already treating address fields as a special case and reset their values upon saving a case_log
     address_questions = %w[postcode_known la previous_postcode_known prevloc property_postcode previous_postcode]
     pages_that_are_routed_to = pages.select { |p| p.routed_to?(case_log) }
     enabled_question_ids = pages_that_are_routed_to.flat_map(&:questions).map(&:id) || []

spec/models/case_log_spec.rb

@@ -582,10 +582,25 @@ RSpec.describe CaseLog do
         expect(case_log["underoccupation_benefitcap"]).to eq("No")
       end
 
-      it "correctly derives and saves homeless" do
-        record_from_db = ActiveRecord::Base.connection.execute("select homeless from case_logs where id=#{case_log.id}").to_a[0]
-        expect(record_from_db["homeless"]).to eq(1)
-        expect(case_log["homeless"]).to eq("No")
+      it "correctly derives and saves prevten" do
+        case_log.update!({ needstype: "General needs" })
+
+        record_from_db = ActiveRecord::Base.connection.execute("select prevten from case_logs where id=#{case_log.id}").to_a[0]
+        expect(record_from_db["prevten"]).to eq(32)
+        expect(case_log["prevten"]).to eq("Fixed-term private registered provider (PRP) general needs tenancy")
+
+        case_log.managing_organisation.update!({ provider_type: "LA" })
+        case_log.update!({ needstype: "General needs" })
+
+        record_from_db = ActiveRecord::Base.connection.execute("select prevten from case_logs where id=#{case_log.id}").to_a[0]
+        expect(record_from_db["prevten"]).to eq(30)
+        expect(case_log["prevten"]).to eq("Fixed-term local authority general needs tenancy")
+      end
+
+      it "correctly derives and saves referral" do
+        record_from_db = ActiveRecord::Base.connection.execute("select referral from case_logs where id=#{case_log.id}").to_a[0]
+        expect(record_from_db["referral"]).to eq(1)
+        expect(case_log["referral"]).to eq("Internal transfer")
       end
     end
   end