diff options
Diffstat (limited to 'actionpack/lib')
| -rw-r--r-- | actionpack/lib/action_dispatch/middleware/callbacks.rb | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/actionpack/lib/action_dispatch/middleware/callbacks.rb b/actionpack/lib/action_dispatch/middleware/callbacks.rb index e4ae480bfb..0bb950d1cc 100644 --- a/actionpack/lib/action_dispatch/middleware/callbacks.rb +++ b/actionpack/lib/action_dispatch/middleware/callbacks.rb @@ -19,9 +19,11 @@ module ActionDispatch # replace the existing callback. Passing an identifier is a suggested # practice if the code adding a preparation block may be reloaded. def self.to_prepare(*args, &block) - if args.first.is_a?(Symbol) && block_given? - define_method :"__#{args.first}", &block - set_callback(:prepare, :"__#{args.first}") + first_arg = args.first + if first_arg.is_a?(Symbol) && block_given? + remove_method :"__#{first_arg}" if method_defined?(:"__#{first_arg}") + define_method :"__#{first_arg}", &block + set_callback(:prepare, :"__#{first_arg}") else set_callback(:prepare, *args, &block) end |