Rails 3 + delayed_job:如何跟踪任务的进度(例如，着陆页面上的进度条)?

Delayed_job is finally working for me (using the collectiveidea gem in RoR3) for a couple of tasks. The first is for an admin to upload a zip file of images to a gallery and extract each image to build a photo object belonging to that gallery. The second is deleting galleries. These galleries can be pretty big (550 pictures in ~3 minutes), and I'd like to be able to show that a gallery is still being processed or is queued for deletion even if it doesn't show up completely.Delayed_job is finally working for me (using th