ADD: Rotate Image via EXIF Information

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

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|