From 618d5317d3ce3d40a22293149f79ff9843bbdb35 Mon Sep 17 00:00:00 2001 From: Carlos Antonio da Silva Date: Thu, 19 Dec 2013 16:30:48 -0200 Subject: Move the null mime type to request.format TLDR: always return an object that responds to the query methods from request.format, and do not touch Mime::Type[] lookup to avoid bugs. --- Long version: The initial issue was about being able to do checks like request.format.html? for request with an unknown format, where request.format would be nil. This is where the issue came from at first in #7837 and #8085 (merged in cba05887dc3b56a46a9fe2779b6b228880b49622), but the implementation went down the path of adding this to the mime type lookup logic. This unfortunately introduced subtle bugs, for instance in the merged commit a test related to send_file had to be changed to accomodate the introduction of the NullType. Later another bug was found in #13064, related to the content-type being shown as # for templates with localized extensions but no format included. This one was fixed in #13133, merged in 43962d6ec50f918c9970bd3cd4b6ee5c7f7426ed. Besides that, custom handlers were not receiving the proper template formats anymore when passing through the rendering process, because of the NullType addition. That was found while migrating an application from 3.2 to 4.0 that uses the Markerb gem (a custom handler that generates both text and html emails from a markdown template). --- This changes the implementation moving away from returning this null object from the mime lookup, and still fixes the initial issue where request.format.zomg? would raise an exception for unknown formats due to request.format being nil. --- actionpack/lib/abstract_controller/rendering.rb | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'actionpack/lib/abstract_controller') diff --git a/actionpack/lib/abstract_controller/rendering.rb b/actionpack/lib/abstract_controller/rendering.rb index 6f17e3fcd9..7be61d94c9 100644 --- a/actionpack/lib/abstract_controller/rendering.rb +++ b/actionpack/lib/abstract_controller/rendering.rb @@ -22,7 +22,7 @@ module AbstractController def render(*args, &block) options = _normalize_render(*args, &block) self.response_body = render_to_body(options) - _process_format(rendered_format) + _process_format(rendered_format) if rendered_format self.response_body end -- cgit v1.2.3