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Added a little bit more docs on ObserverArray #339

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Added a little bit more docs on ObserverArray #339

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6 changes: 5 additions & 1 deletion activemodel/lib/active_model/observer_array.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -13,10 +13,12 @@ def self.for(model_class)
INSTANCES[model_class]
end

# returns false if:
# Returns false if:
# - the ObserverArray for the given model's class has the given observer
# in its disabled_observers set.
# - or that is the case at any level of the model's superclass chain.
#
# On other cases it returns true, since observers are enabled by default.
def self.observer_enabled?(observer, model)
klass = model.class
observer_class = observer.class
Expand All @@ -40,10 +42,12 @@ def initialize(model_class, *args)
super(*args)
end

# Disable the given observers.
def disable(*observers, &block)
set_enablement(false, observers, &block)
end

# Enable the given observers.
def enable(*observers, &block)
set_enablement(true, observers, &block)
end
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