probablycorey/mini_magick — Issue #57: Ruby 1.9.3p0 and mini_magick 3.3
Author: ippa
Created: 2011-11-04 16:44:54+00:00
State: open

I got a standard attachement_fu setup with rails 2.3.14:

-------- from the model
:processor => :MiniMagick,
:thumbnails => {
:small => "30x30>",
:medium => "200x200>",
:big => "500x500>"
}
--------

When mini_magick tries to resize my images it throws this error:
---
Exception working with image: Command ("identify -ping /tmp/["mini_magick", ""]19335-") failed: {:status_code=>1, :output=>"identify: unable to open image `/tmp/[mini_magick,': @ error/blob.c/OpenBlob/2489.\nidentify: unable to open image `]19335-': @ error/blob.c/OpenBlob/2489.\n"}
---

I guess it has something to do with this:

tempfile = Tempfile.new(['mini_magick', ext.to_s.downcase])