Add UnresolvedLogHelper and extract flack notice message

app/controllers/lettings_logs_controller.rb

@@ -118,10 +118,8 @@ private
 
   def resolve_logs!
     if @log&.unresolved == true && @log.location.present? && @log.scheme.present? && @log.update(unresolved: false)
-      notice_message = "You’ve updated all the fields affected by the scheme change."
       unresolved_logs_count_for_user = current_user.lettings_logs.unresolved.created_by(current_user).count
-      notice_message << " <a href=\"/lettings-logs/update-logs\">Update #{unresolved_logs_count_for_user} more logs</a>" if unresolved_logs_count_for_user.positive?
-      flash[:notice] = notice_message.html_safe
+      flash.now[:notice] = helpers.flash_notice_for_resolved_logs(unresolved_logs_count_for_user)
     end
   end
 end

app/helpers/unresolved_log_helper.rb

@@ -0,0 +1,6 @@
+module UnresolvedLogHelper
+  def flash_notice_for_resolved_logs(count)
+    notice_message = "You’ve updated all the fields affected by the scheme change.</br>"
+    notice_message << " <a href=\"/lettings-logs/update-logs\">Update #{count} more logs</a>" if count.positive?
+  end
+end