method

__create_keyed_callback

v3.0.0 - Show latest stable - 0 notes - Class: ActiveSupport::Callbacks::ClassMethods

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What's this?

__create_keyed_callback(name, kind, object, &blk) public

This is called the first time a callback is called with a particular key. It creates a new callback method for the key, calculating which callbacks can be omitted because of per_key conditions.

Show source

# File activesupport/lib/active_support/callbacks.rb, line 429
      def __create_keyed_callback(name, kind, object, &blk) #:nodoc:
        @_keyed_callbacks ||= {}
        @_keyed_callbacks[name] ||= begin
          str = send("_#{kind}_callbacks").compile(name, object)
          class_eval "def \#{name}() \#{str} end\nprotected :\#{name}\n", __FILE__, __LINE__ + 1
          true
        end
      end

__create_keyed_callback

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