For performance reasons, you can no longer call html_safe! on Strings. Instead, all Strings are always not html_safe?. Instead, you can get a SafeBuffer from a String by calling #html_safe, which will SafeBuffer.new(self).

  * Additionally, instead of doing concat("</form>".html_safe), you can do
    safe_concat("</form>"), which will skip both the flag set, and the flag
    check.
  * For the first pass, I converted virtually all #html_safe!s to #html_safe,
    and the tests pass. A further optimization would be to try to use
    #safe_concat as much as possible, reducing the performance impact if
    we know up front that a String is safe.

1 files changed, 1 insertions, 1 deletions

diff --git a/actionpack/lib/action_view/base.rb b/actionpack/lib/action_view/base.rb
index 07ef3f2140..148d507f1c 100644
--- a/actionpack/lib/action_view/base.rb
+++ b/actionpack/lib/action_view/base.rb
@@ -284,7 +284,7 @@ module ActionView #:nodoc:
       @helpers = self.class.helpers || Module.new
 
       @_controller   = controller
-      @_content_for  = Hash.new {|h,k| h[k] = ActionView::SafeBuffer.new }
+      @_content_for  = Hash.new {|h,k| h[k] = ActiveSupport::SafeBuffer.new }
       @_virtual_path = nil
       self.view_paths = view_paths
     end