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Carrierwave ImageUploader that uploads images to Rackspace Files

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ImageUploader.rb
Ruby
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# encoding: utf-8
 
class ImageUploader < CarrierWave::Uploader::Base
 
# Include RMagick or MiniMagick support:
# include CarrierWave::RMagick
include CarrierWave::MiniMagick
include CarrierWaveDirect::Uploader
# process :set_content_type
 
# Choose what kind of storage to use for this uploader:
# storage :file
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
 
# Provide a default URL as a default if there hasn't been a file uploaded:
# def default_url
# # For Rails 3.1+ asset pipeline compatibility:
# # ActionController::Base.helpers.asset_path("fallback/" + [version_name, "default.png"].compact.join('_'))
#
# "/images/fallback/" + [version_name, "default.png"].compact.join('_')
# end
 
# Process files as they are uploaded:
# process :scale => [200, 300]
#
# def scale(width, height)
# # do something
# end
 
# Create different versions of your uploaded files:
version :big do
process :resize_to_fill => [960, 360]
end
 
# version :medium, :from_version => :big do
# process :resize_to_fit => [860, 268]
# end
 
version :thumb, :from_version => :big do
process :resize_to_fit => [320, 120]
end
 
 
# Add a white list of extensions which are allowed to be uploaded.
# For images you might use something like this:
def extension_white_list
%w(jpg jpeg gif png)
end
 
# Override the filename of the uploaded files:
# Avoid using model.id or version_name here, see uploader/store.rb for details.
# def filename
# "something.jpg" if original_filename
# end
 
end

With this ImageUploader in place, I could only upload files to Rackspace by editing a model of the Image class. If you create a new Image WITH an image in place, you'll see an error.

Just delete line 9 of this file. That will fix you problem. Files won't be directly uploade to the Rackspace cloud, but they will go via your server

For more information: http://stackoverflow.com/questions/11187665/rails-uploading-images-to-amazon-s3-via-carrierwave-only-works-on-edit

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