module ActionDispatch class Request < Rack::Request class Utils # :nodoc: mattr_accessor :perform_deep_munge self.perform_deep_munge = true def self.normalize_encode_params(params) if perform_deep_munge NoNilParamEncoder.normalize_encode_params params else ParamEncoder.normalize_encode_params params end end class ParamEncoder # :nodoc: # Convert nested Hash to HashWithIndifferentAccess. # def self.normalize_encode_params(params) case params when Array handle_array params when Hash if params.has_key?(:tempfile) ActionDispatch::Http::UploadedFile.new(params) else params.each_with_object({}) do |(key, val), new_hash| new_hash[key] = normalize_encode_params(val) end.with_indifferent_access end else params end end def self.handle_array(params) params.map! { |el| normalize_encode_params(el) } end end # Remove nils from the params hash class NoNilParamEncoder < ParamEncoder # :nodoc: def self.handle_array(params) list = super list.compact! list end end end end end