Recalculate refused values for lettings logs with unknown person details

lib/tasks/correct_refused_values.rake

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+desc "Forces to recalculate refused values for lettings logs with unknown person details"
+task recalculate_refused_values: :environment do
+  LettingsLog.exportable.where('details_known_2 = 1
+                                OR details_known_3 = 1
+                                OR details_known_4 = 1
+                                OR details_known_5 = 1
+                                OR details_known_6 = 1
+                                OR details_known_7 = 1
+                                OR details_known_8 = 1').each do |log|
+    log.update!(values_updated_at: Time.zone.now)
+  end
+end

spec/lib/tasks/correct_refused_values_spec.rb

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+require "rails_helper"
+require "rake"
+
+RSpec.describe "recalculate_refused_values" do
+  describe ":recalculate_refused_values", type: :task do
+    subject(:task) { Rake::Task["recalculate_refused_values"] }
+
+    before do
+      Rake.application.rake_require("tasks/recalculate_refused_values")
+      Rake::Task.define_task(:environment)
+      task.reenable
+    end
+
+    context "when the rake task is run" do
+      let!(:lettings_log) { create(:lettings_log, :completed, values_updated_at: nil) }
+
+      it "updates refused value to 1 if details for person are not known" do
+        lettings_log.refused = 0
+        lettings_log.details_known_2 = 1
+        lettings_log.hhmemb = 2
+        lettings_log.save!(validate: false)
+        task.invoke
+        lettings_log.reload
+        expect(lettings_log.refused).to eq(1)
+        expect(lettings_log.values_updated_at).not_to be_nil
+      end
+
+      it "does not update refused value if details known is nil" do
+        lettings_log.update!(details_known_2: nil, hhmemb: 2)
+        lettings_log.refused = 0
+        lettings_log.save!(validate: false)
+        task.invoke
+        lettings_log.reload
+        expect(lettings_log.refused).to eq(0)
+        expect(lettings_log.values_updated_at).to be_nil
+      end
+
+      it "does not update refused value if details are known" do
+        lettings_log.refused = 0
+        lettings_log.details_known_2 = 0
+        lettings_log.hhmemb = 2
+        lettings_log.save!(validate: false)
+        task.invoke
+        lettings_log.reload
+        expect(lettings_log.refused).to eq(0)
+        expect(lettings_log.values_updated_at).to be_nil
+      end
+
+      it "updates refused value to 1 if details for any person are not known" do
+        lettings_log.refused = 0
+        lettings_log.details_known_2 = 0
+        lettings_log.details_known_3 = 0
+        lettings_log.details_known_4 = 0
+        lettings_log.details_known_5 = 0
+        lettings_log.details_known_6 = 1
+        lettings_log.details_known_7 = 0
+        lettings_log.details_known_8 = 0
+        lettings_log.hhmemb = 8
+        lettings_log.save!(validate: false)
+        task.invoke
+        lettings_log.reload
+        expect(lettings_log.refused).to eq(1)
+        expect(lettings_log.values_updated_at).not_to be_nil
+      end
+
+      it "updates values updated at if refused is already set to 1 but some details are unknown" do
+        lettings_log.refused = 1
+        lettings_log.details_known_2 = 0
+        lettings_log.details_known_3 = 0
+        lettings_log.details_known_4 = 0
+        lettings_log.details_known_5 = 0
+        lettings_log.details_known_6 = 1
+        lettings_log.details_known_7 = 0
+        lettings_log.details_known_8 = 0
+        lettings_log.hhmemb = 8
+        lettings_log.save!(validate: false)
+        task.invoke
+        lettings_log.reload
+        expect(lettings_log.refused).to eq(1)
+        expect(lettings_log.values_updated_at).not_to be_nil
+      end
+    end
+  end
+end