[Feature Request] Dynamic uploader

[jamesst20]

Hi,

I would like to be able to auto select the proper uploader based on a condition.

Exemple

class MyModel
  include ApplicationUploader::Attachment.new(:file)

  private

  def #{column_name}_dynamic_uploader
    if ....
      ImageUploader
    elsif ...
      VideoUploader
   else
      ...
   end
  end
end

Right now it seems I am forced to define. multiple column based on the file type

Things I have tried

Overriding "#{column}_attacher" like so

define_method(:"#{column}_attacher") do |**options|
  if respond_to?(:"#{column}_uploader_class", true)
    uploader_class = send(:"#{column}_uploader_class")

    uploader_class::Attacher.from_entity(self, column, **options)
  else
    super(**options)
  end
end

For some reason, files don't persist when it doesn't go through the super(...) conditional branch.