Paperclip handler for Hashie::Mash and Hash (Grape API)

paperclip.rb

module Paperclip
  class HashieMashUploadedFileAdapter < AbstractAdapter
    attr_accessor :original_filename # use this accessor if you have paperclip version < 3.3.0

    def initialize(target)
      @tempfile, @content_type, @size = target.tempfile, target.type, target.tempfile.size
      self.original_filename = target.filename
    end
  end

  class HashUploadedFileAdapter < AbstractAdapter
    attr_accessor :original_filename # use this accessor if you have paperclip version < 3.3.0

    def initialize(target)
      @tempfile, @content_type, @size = target[:tempfile], target[:type], target[:tempfile].size
		self.original_filename = target[:filename]
    end
  end
end

Paperclip.io_adapters.register Paperclip::HashieMashUploadedFileAdapter do |target|
  target.is_a? Hashie::Mash
end

Paperclip.io_adapters.register Paperclip::HashUploadedFileAdapter do |target|
  target.is_a?(Hash) && target[:tempfile].is_a?(Tempfile)
end