include Adminpanel::SortableGallery

This concern is used to make the 'gallery' (or files) of an instantce orderable (you'll be able to order them when viewing a member [show action]).

We'll take Adminpanel::Post as an example implementation.

Given that your Adminpanel::Post alredy have mounted gallery (with mount_images :postfiles)

In adminpanel/postfile.rb define:

belongs_to :post

def self.relation_field
  'post_id' #this is the parent model reference
end

def self.display_name
  'postfiles'
end

After that, you'll have to:

• Create adminpanel/postfiles_controller.rb
• Add a position(integer) database field to postfile.rb.
• Add include Adminpanel::SortableGallery in postfile.rb

With this, you are free to call @post.postfiles.ordered and are going to be scoped by position