diff options
| -rw-r--r-- | activerecord/lib/active_record/persistence.rb | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb index 26c11b50a2..3f98d8f217 100644 --- a/activerecord/lib/active_record/persistence.rb +++ b/activerecord/lib/active_record/persistence.rb @@ -367,6 +367,13 @@ module ActiveRecord # # # triggers @brake.car.touch and @brake.car.corporation.touch # @brake.touch + # + # Note that +touch+ must be used on a persisted object, or else an + # ActiveRecordError will be thrown. For example: + # + # ball = Ball.new + # ball.touch(:updated_at) # => raises ActiveRecordError + # def touch(name = nil) raise ActiveRecordError, "can not touch on a new record object" unless persisted? |