From be55462e350fde2ca6e38253d3cd1a478040a62c Mon Sep 17 00:00:00 2001
From: HausdorffHimself <andreas@X220.(none)>
Date: Fri, 13 Sep 2013 01:44:07 +0200
Subject: [PATCH] ADD: Rotate Image via EXIF Information

---
 app/uploaders/foto_uploader.rb     | 4 ++++
 config/initializers/carrierwave.rb | 9 +++++++++
 2 files changed, 13 insertions(+)

diff --git a/app/uploaders/foto_uploader.rb b/app/uploaders/foto_uploader.rb
index 3db5be8..1a2385d 100644
--- a/app/uploaders/foto_uploader.rb
+++ b/app/uploaders/foto_uploader.rb
@@ -30,7 +30,11 @@ class FotoUploader < CarrierWave::Uploader::Base
   # def scale(width, height)
   #   # do something
   # end
+
+  # general settings
+  process :fix_exif_rotation
   process :strip
+  process :convert => 'jpg'
 
   # Create different versions of your uploaded files:
    version :thumb do
diff --git a/config/initializers/carrierwave.rb b/config/initializers/carrierwave.rb
index d54f184..2b9fe31 100644
--- a/config/initializers/carrierwave.rb
+++ b/config/initializers/carrierwave.rb
@@ -1,6 +1,15 @@
 module CarrierWave
   module RMagick
 
+    # Rotates the image based on the EXIF Orientation
+    def fix_exif_rotation
+      manipulate! do |img|
+        img.auto_orient!
+        img = yield(img) if block_given?
+        img
+      end
+    end
+
     # Manipulates quality settings of image
     def quality(percentage)
       manipulate! do |img|