Add duplicate_logs scope to lettings

app/models/lettings_log.rb

@@ -53,6 +53,11 @@ class LettingsLog < Log
   scope :filter_by_before_startdate, ->(date) { where("lettings_logs.startdate >= ?", date) }
   scope :unresolved, -> { where(unresolved: true) }
   scope :filter_by_organisation, ->(org, _user = nil) { where(owning_organisation: org).or(where(managing_organisation: org)) }
+  scope :duplicate_logs, lambda { |log|
+    attrs_to_check = %w[tenancycode propcode startdate age1 sex1 ecstat1 tcharge postcode_full]
+    where(log.slice(*attrs_to_check)).where.not(id: log.id).where.not(status: "deleted")
+  }
+  scope :duplicate_logs_for_organisation, ->(org, log) { filter_by_organisation(org).duplicate_logs(log) }
 
   AUTOGENERATED_FIELDS = %w[id status created_at updated_at discarded_at].freeze
   OPTIONAL_FIELDS = %w[first_time_property_let_as_social_housing tenancycode propcode chcharge].freeze

spec/factories/lettings_log.rb

@@ -34,6 +34,24 @@ FactoryBot.define do
       ecstat1 { 2 }
       hhmemb { 1 }
     end
+    trait :duplicate_general_needs do
+      status { 1 }
+      tenancycode { "same tenancy code" }
+      postcode_full { "A1 1AA" }
+      age1 { 18 }
+      sex1 { "M" }
+      ecstat1 { 0 }
+      period { 2 }
+      brent { 200 }
+      scharge { 50 }
+      pscharge { 40 }
+      supcharg { 35 }
+      tcharge { 325 }
+      propcode { "same property code" }
+      renewal { 1 }
+      rent_type { 1 }
+      startdate { Time.zone.today }
+    end
     trait :completed do
       startdate { Time.zone.today }
       status { 2 }

spec/models/lettings_log_spec.rb

@@ -2797,6 +2797,72 @@ RSpec.describe LettingsLog do
         expect(described_class.filter_by_user(%w[all yours], created_by_user).count).to eq(3)
       end
     end
+
+    context "when filtering duplicate logs" do
+      let(:log) { create(:lettings_log, :duplicate_general_needs) }
+      let!(:duplicate_log) { create(:lettings_log, :duplicate_general_needs) }
+      let!(:deleted_duplicate_log) { create(:lettings_log, :duplicate_general_needs, discarded_at: Time.zone.now) }
+      let!(:different_start_date_log) { create(:lettings_log, :duplicate_general_needs, startdate: Time.zone.tomorrow) }
+      let!(:different_age1) { create(:lettings_log, :duplicate_general_needs, age1: 50) }
+      let!(:different_sex1) { create(:lettings_log, :duplicate_general_needs, sex1: "F") }
+      let!(:different_ecstat1) { create(:lettings_log, :duplicate_general_needs, ecstat1: 1) }
+      let!(:different_tcharge) { create(:lettings_log, :duplicate_general_needs, brent: 100) }
+      let!(:different_propcode) { create(:lettings_log, :duplicate_general_needs, propcode: "different") }
+      let!(:different_tenancycode) { create(:lettings_log, :duplicate_general_needs, tenancycode: "different") }
+      let!(:different_postcode_full) { create(:lettings_log, :duplicate_general_needs, postcode_full: "B1 1AA") }
+
+      before do
+        create(:lettings_log, :in_progress)
+      end
+
+      it "returns all duplicate logs for given log" do
+        expect(described_class.duplicate_logs(log).count).to eq(1)
+      end
+
+      it "returns duplicate log" do
+        expect(described_class.duplicate_logs(log)).to include(duplicate_log)
+      end
+
+      it "does not return deleted duplicate logs" do
+        expect(described_class.duplicate_logs(log)).not_to include(deleted_duplicate_log)
+      end
+
+      it "does not return the given log" do
+        expect(described_class.duplicate_logs(log)).not_to include(log)
+      end
+
+      it "does not return a log with a different start date" do
+        expect(described_class.duplicate_logs(log)).not_to include(different_start_date_log)
+      end
+
+      it "does not return a log with a different age1" do
+        expect(described_class.duplicate_logs(log)).not_to include(different_age1)
+      end
+
+      it "does not return a log with a different sex1" do
+        expect(described_class.duplicate_logs(log)).not_to include(different_sex1)
+      end
+
+      it "does not return a log with a different ecstat1" do
+        expect(described_class.duplicate_logs(log)).not_to include(different_ecstat1)
+      end
+
+      it "does not return a log with a different tcharge" do
+        expect(described_class.duplicate_logs(log)).not_to include(different_tcharge)
+      end
+
+      it "does not return a log with a different propcode" do
+        expect(described_class.duplicate_logs(log)).not_to include(different_propcode)
+      end
+
+      it "does not return a log with a different tenancycode" do
+        expect(described_class.duplicate_logs(log)).not_to include(different_tenancycode)
+      end
+
+      it "does not return a log with a different postcode_full" do
+        expect(described_class.duplicate_logs(log)).not_to include(different_postcode_full)
+      end
+    end
   end
 
   describe "#retirement_age_for_person" do