diff options
| -rw-r--r-- | activemodel/lib/active_model/observing.rb | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/activemodel/lib/active_model/observing.rb b/activemodel/lib/active_model/observing.rb index 3c80d584fe..4e9a305d9d 100644 --- a/activemodel/lib/active_model/observing.rb +++ b/activemodel/lib/active_model/observing.rb @@ -76,7 +76,11 @@ module ActiveModel elsif observer.respond_to?(:instance) observer.instance else - raise ArgumentError, "#{observer} must be a lowercase, underscored class name (or an instance of the class itself) responding to the instance method. Example: Person.observers = :big_brother # calls BigBrother.instance" + raise ArgumentError, + "#{observer} must be a lowercase, underscored class name (or an " + + "instance of the class itself) responding to the instance " + + "method. Example: Person.observers = :big_brother # calls " + + "BigBrother.instance" end end |