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Improved ActiveModel Observing docs.

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This commit is contained in:
Sebastian Martinez 2011-04-30 20:35:25 -03:00
parent bf3a3c22c0
commit b84b759ec6
1 changed files with 4 additions and 2 deletions
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6
activemodel/lib/active_model/observing.rb
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@ -56,6 +56,8 @@ module ActiveModel
end
# Add a new observer to the pool.
# The new observer needs to respond to 'update', otherwise it
# raises an +ArgumentError+ exception.
def add_observer(observer)
unless observer.respond_to? :update
raise ArgumentError, "observer needs to respond to `update'"
@ -144,8 +146,8 @@ module ActiveModel
# Observers will by default be mapped to the class with which they share a
# name. So CommentObserver will be tied to observing Comment, ProductManagerObserver
# to ProductManager, and so on. If you want to name your observer differently than
# the class you're interested in observing, you can use the Observer.observe class
# method which takes either the concrete class (Product) or a symbol for that
# the class you're interested in observing, you can use the <tt>Observer.observe</tt>
# class method which takes either the concrete class (Product) or a symbol for that
# class (:product):
#
# class AuditObserver < ActiveModel::Observer