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method

respond_to

rails latest stable - Class: ActionController::MimeResponds::ClassMethods

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v4.2.1) is shown here.

respond_to(*)
public

No documentation available.

# File actionpack/lib/action_controller/metal/mime_responds.rb, line 8
      def respond_to(*)
        raise NoMethodError, "The controller-level `respond_to' feature has "            "been extracted to the `responders` gem. Add it to your Gemfile to "            "continue using this feature:\n"            "  gem 'responders', '~> 2.0'\n"            "Consult the Rails upgrade guide for details."
      end

1Note

Also useful without respond_with

gwshaw ยท Nov 19, 2014

Using the class method #respond_to allows controller-level specification of the allowed mime-types. Without #respond_with , it enables a

Completed 406 Not Acceptable

response rather than

ActionView::MissingTemplate

error when an unsupported type is requested.

See: http://www.justinweiss.com/blog/2014/11/03/respond-to-without-all-the-pain/