Document Management System in Rails

I want to create a Document Management interface in Rails which have the windows explorer interface.

Requirements for the interface:

• Folder manipulation (can create, copy, move or delete folders)
• File manipulation (can upload, copy, move or delete files)

Good to have:

• Drag and drop folders and files.

Currently I'm using carrierwave gem to upload files and files and folders will be stored in the

For drag and drop I can use any JS library. But for that interface, does anyone have any idea or have created this in past so that I can get some useful information?

So far, I've found some gems to provide this:

• Documentalist
• Paperless
• Boxroom