Make sorting and attachments work

app/controllers/suppliers/products_controller.rb

@@ -107,7 +107,7 @@ module Suppliers
     BASE64_IMAGE_MATCHER = /^data:image\/(\w+);base64,/ # data:image/png;base64,
     # inspired by: https://stackoverflow.com/questions/32984963/upload-base64-encoded-image-with-paperclip-rails
     def decode_base64_params(authorized_params, attributes = [])
-      tempfiles = []
+      @tempfiles = []
       attributes = Array.wrap(attributes) # allow single attribute argument without array notation
       attributes.each do |attribute|
         if value = authorized_params[attribute].presence
@@ -115,6 +115,7 @@ module Suppliers
             image_type = match[1]
             decoded_attribute = Base64.decode64 value.sub BASE64_IMAGE_MATCHER, ''
             file = Tempfile.new(['image', ".#{image_type}"])
+            tempfiles << file
             file.binmode
             file.write decoded_attribute
             authorized_params[attribute] = file
@@ -126,7 +127,8 @@ module Suppliers
       end
       authorized_params
     ensure
-      tempfiles.each &:unlink
+      @tempfiles.each &:rewind
+      # tempfiles.each &:unlink
     end
   end
 end