diff options
Diffstat (limited to 'activemodel/lib')
| -rw-r--r-- | activemodel/lib/active_model/attribute_methods.rb | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/activemodel/lib/active_model/attribute_methods.rb b/activemodel/lib/active_model/attribute_methods.rb index 1ba5b0e3d4..f336c759d2 100644 --- a/activemodel/lib/active_model/attribute_methods.rb +++ b/activemodel/lib/active_model/attribute_methods.rb @@ -1,4 +1,5 @@ require 'thread_safe' +require 'mutex_m' module ActiveModel # Raised when an attribute is not defined. @@ -333,7 +334,9 @@ module ActiveModel end def generated_attribute_methods #:nodoc: - @generated_attribute_methods ||= Module.new.tap { |mod| include mod } + @generated_attribute_methods ||= Module.new { + extend Mutex_m + }.tap { |mod| include mod } end protected |