diff options
Diffstat (limited to 'activesupport/lib/active_support/callbacks.rb')
| -rw-r--r-- | activesupport/lib/active_support/callbacks.rb | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/activesupport/lib/active_support/callbacks.rb b/activesupport/lib/active_support/callbacks.rb index 933667c909..ba15043bde 100644 --- a/activesupport/lib/active_support/callbacks.rb +++ b/activesupport/lib/active_support/callbacks.rb @@ -390,9 +390,12 @@ module ActiveSupport undef_method "_run_#{symbol}_callbacks" if method_defined?("_run_#{symbol}_callbacks") class_eval <<-RUBY_EVAL, __FILE__, __LINE__ + 1 def _run_#{symbol}_callbacks(key = nil, &blk) - if self.class.send("_update_#{symbol}_superclass_callbacks") - self.class.__define_runner(#{symbol.inspect}) - return _run_#{symbol}_callbacks(key, &blk) + @_initialized_#{symbol}_callbacks ||= begin + if self.class.send("_update_#{symbol}_superclass_callbacks") + self.class.__define_runner(#{symbol.inspect}) + return _run_#{symbol}_callbacks(key, &blk) + end + true end if key |