diff options
| -rw-r--r-- | activemodel/lib/active_model/dirty.rb | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/activemodel/lib/active_model/dirty.rb b/activemodel/lib/active_model/dirty.rb index 98ffffeb10..48dd54a7b0 100644 --- a/activemodel/lib/active_model/dirty.rb +++ b/activemodel/lib/active_model/dirty.rb @@ -84,9 +84,11 @@ module ActiveModel # person.changed # => ["name"] # person.changes # => {"name" => ["Bill", "Bob"]} # - # If an attribute is modified in-place then make use of <tt>[attribute_name]_will_change!</tt> - # to mark that the attribute is changing. Otherwise ActiveModel can't track - # changes to in-place attributes. + # If an attribute is modified in-place then make use of + # +[attribute_name]_will_change!+ to mark that the attribute is changing. + # Otherwise ActiveModel can't track changes to in-place attributes. Note + # that ActiveRecord can detect in-place modifications automatically. You do + # not need to call +[attribute_name]_will_change!+ on ActiveRecord models. # # person.name_will_change! # person.name_change # => ["Bill", "Bill"] |