diff options
Diffstat (limited to 'actionpack/lib/action_controller/metal/rendering.rb')
-rw-r--r-- | actionpack/lib/action_controller/metal/rendering.rb | 42 |
1 files changed, 36 insertions, 6 deletions
diff --git a/actionpack/lib/action_controller/metal/rendering.rb b/actionpack/lib/action_controller/metal/rendering.rb index bea6b88f91..21224b9c3b 100644 --- a/actionpack/lib/action_controller/metal/rendering.rb +++ b/actionpack/lib/action_controller/metal/rendering.rb @@ -1,8 +1,38 @@ module ActionController - module Rendering + # Basic rendering implements the most minimal rendering layer. + # It only supports rendering :text and :nothing. Passing any other option will + # result in `UnsupportedOperationError` exception. For more functionality like + # different formats, layouts etc. you should use `ActionView` gem. + module BasicRendering extend ActiveSupport::Concern - include AbstractController::Rendering + # Render text or nothing (empty string) to response_body + # :api: public + def render(*args, &block) + super(*args, &block) + opts = args.first + if opts.has_key?(:text) && opts[:text].present? + self.response_body = opts[:text] + elsif opts.has_key?(:nothing) && opts[:nothing] + self.response_body = " " + else + raise UnsupportedOperationError + end + end + + def rendered_format + Mime::TEXT + end + + class UnsupportedOperationError < StandardError + def initialize + super "Unsupported render operation. BasicRendering supports only :text and :nothing options. For more, you need to include ActionView." + end + end + end + + module Rendering + extend ActiveSupport::Concern # Before processing, set the request formats in current controller formats. def process_action(*) #:nodoc: @@ -12,17 +42,17 @@ module ActionController # Check for double render errors and set the content_type after rendering. def render(*args) #:nodoc: - raise ::AbstractController::DoubleRenderError if response_body + raise ::AbstractController::DoubleRenderError if self.response_body super - self.content_type ||= Mime[lookup_context.rendered_format].to_s - response_body + self.content_type ||= rendered_format.to_s + self.response_body end # Overwrite render_to_string because body can now be set to a rack body. def render_to_string(*) if self.response_body = super string = "" - response_body.each { |r| string << r } + self.response_body.each { |r| string << r } string end ensure |