exif image rotation issue using carrierwave and rmagick to upload to s3

Question

I\'ve got a photo upload feature in my rails app. The app uploads direct to s3 through carrierwave via rmagick and fog. The issue I am having is when a photo is uploaded via

Answer 1

I had a similar problem and fixed it with an approach nearly identical to yours.

# In the uploader:
def auto_orient
  manipulate! do |img|
    img = img.auto_orient
  end
end

(Note that I am not calling auto_orient! - just auto_orient, without the bang.)

Then I have process :auto_orient as the first line of any version I create. For example:

version :square do
  process :auto_orient
  process :resize_to_fill => [600, 600]
end

Answer 2

Lando2319's answer was not working for me.

I am using RMagick.

I managed to make ImageMagick apply the correct orientation (and to reset the EXIF rotation data in order to avoid a double rotation by the viewer) by using :

def fix_exif_rotation # put this before any other process in the Carrierwave uploader

manipulate! do |img|
  img.tap(&:auto_orient!)
end

The difference between my solution & Lando's is the bang (!). In my case it was absolutely necessary.

Answer 3

My solution (quite similar to Sumeet) :

# painting_uploader.rb
process :right_orientation
def right_orientation
  manipulate! do |img|
    img.auto_orient
    img
  end
end

It's really important to return an image. Otherwise, you'll get an

NoMethodError (undefined method `write' for "":String):

Answer 4

Well I got this working using fog instead or carrierwave_direct.

Below is the code that ended up working for me:

app/uploaders/image_uploader.rb

class ImageUploader < CarrierWave::Uploader::Base
   include CarrierWave::MiniMagick

   include Sprockets::Helpers::RailsHelper
   include Sprockets::Helpers::IsolatedHelper

   storage :fog

  # Override the directory where uploaded files will be stored.
  # This is a sensible default for uploaders that are meant to be mounted:
  def store_dir
    "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  end


  def fix_exif_rotation #this is my attempted solution
    manipulate! do |img|
      img.tap(&:auto_orient)
    end
  end

  process :fix_exif_rotation
end

app/models/s3_image.rb

class S3Image < ActiveRecord::Base
  attr_accessible :image, :name, :user_id, :image_cache
  mount_uploader :image, ImageUploader

  belongs_to :user
end

initializers/carrierwave.rb

CarrierWave.configure do |config|
  config.fog_credentials = {
    provider: "AWS",
    aws_access_key_id: " ... ",
    aws_secret_access_key: " ... ",
    region: 'us-west-2'
  }
  config.fog_directory = " ... "
end