Module: Fetch::Callbacks::ClassMethods

Defined in:
lib/fetch/callbacks.rb

Instance Method Summary collapse

Instance Method Details

#callbacks ⇒ Object

Hash of callback blocks to be called.



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# File 'lib/fetch/callbacks.rb', line 42

def callbacks
  @callbacks ||= Hash.new { |h, k| h[k] = [] }
end

#define_callback(*names) ⇒ Object

Defines callback methods on the class level.



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# File 'lib/fetch/callbacks.rb', line 47

def define_callback(*names)
  options = names.last.is_a?(Hash) ? names.pop : {}
  reverse = !!options[:reverse]

  names.each do |name|
    define_singleton_method name do |*values, &block|
      create_callback_for(name, values, block)
    end

    define_method name do |*args|
      run_callbacks_for(name, args, reverse).last
    end

    define_method "#{name}!" do |*args|
      run_last_callback_for(name, args, reverse)
    end
  end
end

#inherited(base) ⇒ Object 



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# File 'lib/fetch/callbacks.rb', line 66

def inherited(base)
  super
  callbacks.each do |name, callbacks|
    base.callbacks[name] = callbacks.dup
  end
end