I'm using attachment_fu for uploading all of my files and have done so successfully except when I try to upload zip files.
I continuously get this error: "Size is not included in the list"
I implemented this fix: http://www.railsforum.com/viewtopic.php?id=6307
but it didn't work.
Here is my model code:
has_attachment :content_type => 'application/zip', :storage => :file_system, :path_prefix => '../downloads', :max_size => 11102400.kilobytes, :min_size => 2.kilobytes
validates_as_attachment