module ActionController module Rendering extend ActiveSupport::Concern # Before processing, set the request formats in current controller formats. def process_action(*) #:nodoc: self.formats = request.formats.map(&:ref).compact super end # Check for double render errors and set the content_type after rendering. def render(*args) #:nodoc: raise ::AbstractController::DoubleRenderError if self.response_body super end # Overwrite render_to_string because body can now be set to a rack body. def render_to_string(*) result = super if result.respond_to?(:each) string = "" result.each { |r| string << r } string else result end end def render_to_body(options = {}) super || if options[:text].present? options[:text] else " " end end private def _process_format(format) super self.content_type ||= format.to_s end # Normalize arguments by catching blocks and setting them on :update. def _normalize_args(action=nil, options={}, &blk) #:nodoc: options = super options[:update] = blk if block_given? options end # Normalize both text and status options. def _normalize_options(options) #:nodoc: if options.key?(:text) && options[:text].respond_to?(:to_text) options[:text] = options[:text].to_text end if options.delete(:nothing) || (options.key?(:text) && options[:text].nil?) options[:text] = " " end if options[:status] options[:status] = Rack::Utils.status_code(options[:status]) end super end # Process controller specific options, as status, content-type and location. def _process_options(options) #:nodoc: status, content_type, location = options.values_at(:status, :content_type, :location) self.status = status if status self.content_type = content_type if content_type self.headers["Location"] = url_for(location) if location super end end end