I\'ve been looking for a way to set up Ruby on Rails 3.1 with Paperclip and jQuery fileupload. Looking at a tutorial at jQuery fileupload page I got the system set up but I can\
If you explicitly set the name on the file_field:
file_field
f.file_field :photo, multiple: true, name: 'user[photo]'
Rails will generate user[photo] instead of user[photo][].
user[photo]
user[photo][]