Orbit/app/uploaders/asset_uploader.rb

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# encoding: utf-8
class AssetUploader < CarrierWave::Uploader::Base
require 'mime/types'
process :set_content_type
def set_content_type(*args)
content_type = file.content_type == 'binary/octet-stream' || 'application/octet-stream' || file.content_type.blank? ? MIME::Types.type_for(original_filename).first.to_s : file.content_type
self.file.instance_variable_set(:@content_type, content_type)
end
# Include RMagick or ImageScience support:
# include CarrierWave::RMagick
# include CarrierWave::ImageScience
# Choose what kind of storage to use for this uploader:
# storage :file
# storage :s3
# 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
"assets/#{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
# "/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 :thumb do
# process :scale => [50, 50]
# 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:
# def filename
# "something.jpg" if original_filename
# end
end