Flowdock
method

append_one

Importance_0
v4.0.2 - Show latest stable - 0 notes - Class: ActiveSupport::Callbacks::CallbackChain
append_one(callback) private

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# File activesupport/lib/active_support/callbacks.rb, line 345
      def append_one(callback)
        remove_duplicates(callback)
        push(callback)
      end
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