Order lettings logs search results

app/models/lettings_log.rb

@@ -59,11 +59,17 @@ class LettingsLog < Log
     query.all
   }
   scope :search_by, lambda { |param|
+                      by_id = Arel.sql("case when lettings_logs.id = #{param.to_i} then 0 else 1 end")
+                      by_tenant_code = Arel.sql("case when tenancycode = '#{param}' then 0 when tenancycode ILIKE '%#{param}%' then 1 else 2 end")
+                      by_propcode = Arel.sql("case when propcode = '#{param}' then 0 when propcode ILIKE '%#{param}%' then 1 else 2 end")
+                      by_postcode = Arel.sql("case when REPLACE(postcode_full, ' ', '') = '#{param.delete(' ')}' then 0 when REPLACE(postcode_full, ' ', '') ILIKE '%#{param.delete(' ')}%' then 1 else 2 end")
+
                       filter_by_location_postcode(param)
                         .or(filter_by_tenant_code(param))
                         .or(filter_by_propcode(param))
                         .or(filter_by_postcode(param))
                         .or(filter_by_id(param.gsub(/log/i, "")))
+                        .order(by_id).order(by_tenant_code, by_propcode, by_postcode)
                     }
   scope :after_date, ->(date) { where("lettings_logs.startdate >= ?", date) }
   scope :before_date, ->(date) { where("lettings_logs.startdate < ?", date) }

spec/models/lettings_log_spec.rb

@@ -2885,6 +2885,30 @@ RSpec.describe LettingsLog do
             expect(result.first.id).to eq lettings_log_to_search.id
           end
         end
+
+        context "when matching multiple records on different fields" do
+          let!(:lettings_log_with_propcode) { create(:lettings_log, propcode: lettings_log_to_search.id) }
+          let!(:lettings_log_with_tenancycode) { create(:lettings_log, tenancycode: lettings_log_to_search.id) }
+          let!(:lettings_log_with_postcode) { create(:lettings_log, postcode_full: "C1 1AC") }
+          let!(:lettings_log_with_postcode_tenancycode) { create(:lettings_log, tenancycode: "C1 1AC") }
+          let!(:lettings_log_with_postcode_propcode) { create(:lettings_log, propcode: "C1 1AC") }
+
+          it "returns all matching records in correct order with matching IDs" do
+            result = described_class.search_by(lettings_log_to_search.id.to_s)
+            expect(result.count).to eq(3)
+            expect(result.first.id).to eq lettings_log_to_search.id
+            expect(result.second.id).to eq lettings_log_with_tenancycode.id
+            expect(result.third.id).to eq lettings_log_with_propcode.id
+          end
+
+          it "returns all matching records in correct order with matching postcode" do
+            result = described_class.search_by("C1 1AC")
+            expect(result.count).to eq(3)
+            expect(result.first.id).to eq lettings_log_with_postcode_tenancycode.id
+            expect(result.second.id).to eq lettings_log_with_postcode_propcode.id
+            expect(result.third.id).to eq lettings_log_with_postcode.id
+          end
+        end
       end
     end