What is the best way to have image uploading and cropping in a rails app?

I want to upload an image to a model and then crop it.开发者_如何学Go I tried using paperclip with jcrop, but I can not figure it out. Any other options out there?

Dragonfly + jcrop. You can see a good example here: https://github.com/jschwindt/dragonfly_crop

Please checkout http://odysseyonrails.com/articles/10. It has a demo code using paperclip and jcrop.