Introduce flush_output_buffer to append the buffer to the response body then start a new buffer. Useful for pushing custom parts to the response body without disrupting template rendering.

1 files changed, 8 insertions, 0 deletions

diff --git a/actionpack/lib/action_view/helpers/capture_helper.rb b/actionpack/lib/action_view/helpers/capture_helper.rb
index e86ca27f31..9e39536653 100644
--- a/actionpack/lib/action_view/helpers/capture_helper.rb
+++ b/actionpack/lib/action_view/helpers/capture_helper.rb
@@ -131,6 +131,14 @@ module ActionView
       ensure
         self.output_buffer = old_buffer
       end
+
+      # Add the output buffer to the response body and start a new one.
+      def flush_output_buffer #:nodoc:
+        if output_buffer && output_buffer != ''
+          response.body_parts << output_buffer
+          self.output_buffer = ''
+        end
+      end
     end
   end
 end