ruby on rails - active_admin and adding multiple images to gallery -

i'm using active_admin , carrierwave gems. have 2 simple models:

class image < activerecord::base   attr_accessible :gallery_id, :file   belongs_to :gallery    mount_uploader :file, fileuploader end  class gallery < activerecord::base    attr_accessible :description, :title, :file, :images_attributes   has_many :images   accepts_nested_attributes_for :images, allow_destroy: true    mount_uploader :file, fileuploader end 

now active_admin form gallery looks this:

form |f|   f.inputs "gallery"     f.input :title   end   f.has_many :images |ff|     ff.input :file   end   f.actions end 

now can upload 1 file, click "add new image" , upload one. instead of it, i'd click "add new image", select multiple files , upload them @ once. idea how can implement it?

for gallery form multiple image uploads can try this

admin/galleries.rb

  form |f|     f.inputs "gallery"        f.input :name     end     f.has_many :images |ff|       ff.input :file     end   end 

in model/gallery.rb:

attr_accessible :images_attributes 

in model/gallery.rb (add after relations):

accepts_nested_attributes_for :images, :allow_destroy => true