From bdfdbcd217c458a02978a6e3523521ee3bb137fa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9gis=20Hanol?= <regis@hanol.fr>
Date: Wed, 10 Jun 2015 18:15:10 +0200
Subject: [PATCH] FIX: we need the sha of the upload to create a thumbnail

---
 app/models/optimized_image.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/models/optimized_image.rb b/app/models/optimized_image.rb
index d29560ab12..3a0c5aaa82 100644
--- a/app/models/optimized_image.rb
+++ b/app/models/optimized_image.rb
@@ -8,6 +8,7 @@ class OptimizedImage < ActiveRecord::Base
 
   def self.create_for(upload, width, height, opts={})
     return unless width > 0 && height > 0
+    return if upload.try(:sha1).blank?
 
     DistributedMutex.synchronize("optimized_image_#{upload.id}_#{width}_#{height}") do
       # do we already have that thumbnail?