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Update documentation for observers to reflect new configuration system.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2766 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
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commit 0ba5bd583b54b104b55e190bc516c2e491eb38f0 1 parent beff664
Marcel Molina authored
Showing with 4 additions and 3 deletions.
  1. +4 −3 activerecord/lib/active_record/observer.rb
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7 activerecord/lib/active_record/observer.rb
@@ -74,9 +74,10 @@ def observers=(*observers)
#
# == Triggering Observers
#
- # In order to activate an observer, you need to call Observer.instance. In Rails, this can be done in controllers
- # using the short-hand of for example observer :comment_observer. Or directly from Active Record, with
- # ActiveRecord::Base.observer(:comment_observer).
+ # In order to activate an observer, list it in the <tt>config.active_record.observers</tt> configuration setting in your
+ # <tt>config/environment.rb</tt> file.
+ #
+ # config.active_record.observers = :comment_observer, :signup_observer
class Observer
include Singleton
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