mark dataexported notifications as read when visiting export page

app/controllers/settings/export_controller.rb

@@ -2,6 +2,7 @@
 
 class Settings::ExportController < ApplicationController
   before_action :authenticate_user!
+  before_action :mark_notifications_as_read, only: %i[index]
 
   def index
     flash[:info] = t(".info") if current_user.export_processing
@@ -17,4 +18,12 @@ class Settings::ExportController < ApplicationController
 
     redirect_to settings_export_path
   end
+
+  private
+
+  def mark_notifications_as_read
+    Notification::DataExported
+      .where(recipient: current_user, new: true)
+      .update_all(new: false) # rubocop:disable Rails/SkipsModelValidations
+  end
 end

spec/controllers/settings/export_controller_spec.rb

@@ -15,6 +15,21 @@ describe Settings::ExportController, type: :controller do
         subject
         expect(response).to render_template(:index)
       end
+
+      context "when user has a new DataExported notification" do
+        let(:notification) do
+          Notification::DataExported.create(
+            target_id:   user.id,
+            target_type: "User::DataExport",
+            recipient:   user,
+            new:         true
+          )
+        end
+
+        it "marks the notification as read" do
+          expect { subject }.to change { notification.reload.new }.from(true).to(false)
+        end
+      end
     end
   end