class ProjectCaoUploader < CarrierWave::Uploader::Base # Include RMagick or MiniMagick support: # include CarrierWave::RMagick #include CarrierWave::MiniMagick include UploadHelper # Choose what kind of storage to use for this uploader: storage :file after :remove, :delete_empty_dirs # 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 "#{base_store_dir}/#{model.id}" end def base_store_dir "uploads/#{model.class.to_s.underscore}" 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 # Add a white list of extensions which are allowed to be uploaded. # For images you might use something like this: def extension_white_list ENV['ALLOWED_EXTENSIONS'].split(' ') end # Override the filename of the uploaded files: # Avoid using model.id or version_name here, see uploader/store.rb for details. #def filename #"avatar.#{file.extension}" if original_filename #end end