Module: Rackr::Action::Callbacks::ClassMethods

Defined in:
lib/rackr/action/callbacks.rb

Overview

Class methods for callbacks

Instance Method Summary collapse

Instance Method Details

#after(callback) ⇒ Object 



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# File 'lib/rackr/action/callbacks.rb', line 34

def after(callback)
  @afters ||= []
  @afters.concat(ensure_array(callback))
end

#afters ⇒ Object 



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# File 'lib/rackr/action/callbacks.rb', line 39

def afters
  @afters || []
end

#before(callback) ⇒ Object 



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# File 'lib/rackr/action/callbacks.rb', line 25

def before(callback)
  @befores ||= []
  @befores.concat(ensure_array(callback))
end

#befores ⇒ Object 



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# File 'lib/rackr/action/callbacks.rb', line 30

def befores
  @befores || []
end

#inherited(subclass) ⇒ Object 



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# File 'lib/rackr/action/callbacks.rb', line 16

def inherited(subclass)
  super
  # When a class inherits, it should get a copy of the parent's callbacks
  # so that its own additions don't modify the parent's list.
  # Using .dup to ensure a new array object is created for the subclass.
  subclass.instance_variable_set(:@befores, befores.dup) if instance_variable_defined?(:@befores)
  subclass.instance_variable_set(:@afters, afters.dup) if instance_variable_defined?(:@afters)
end