In a Ruby-on-Rails website, I want to create the following dialog, where a user is shown a list of colors and must choose 3 favorites and 3 least liked colors.
It works by dragging an item from the left and dropping it on the right.
What is the easiest and most maintainable library/method to implement this?
Notes: I am in the process of choosing a JavaScript framework for this website, so any proposition is fine. If that matters, the real thing is actually: among 15 work situations, choosing 5 that the user feels as most stressful, and 5 least stressful.
jQuery UI.
It has draggable and droppable. It is super easy to use, highly configurable and is the new standard javascript library in Rails 3.1.