diff options
Diffstat (limited to 'activerecord/lib/active_record/observer.rb')
| -rw-r--r-- | activerecord/lib/active_record/observer.rb | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/observer.rb b/activerecord/lib/active_record/observer.rb index 0ea7fe7365..5f80bd86df 100644 --- a/activerecord/lib/active_record/observer.rb +++ b/activerecord/lib/active_record/observer.rb @@ -1,6 +1,8 @@ require 'active_support/core_ext/class/attribute' module ActiveRecord + # = Active Record Observer + # # Observer classes respond to lifecycle callbacks to implement trigger-like # behavior outside the original class. This is a great way to reduce the # clutter that normally comes when the model class is burdened with @@ -105,8 +107,9 @@ module ActiveRecord end protected + def observed_subclasses - observed_classes.sum([]) { |klass| klass.send(:subclasses) } + observed_classes.sum([]) { |klass| klass.send(:descendants) } end def observe_callbacks? |