Module: TheHelp::ProvidesCallbacks::ClassMethods

Defined in:
lib/the_help/provides_callbacks.rb

Overview

Classes that include ProvidesCallbacks are extended with these ClassMethods

Instance Method Summary collapse

Instance Method Details

#callback(name, &block) ⇒ self

Defines a callback method on the class

The provided block will be used to define an instance method. This behaves similarly to #define_method, however it will ensure that callbacks are logged if the object has a #logger method defined.

Parameters:

  • name (Symbol) —

    The name of the callback

  • block (Proc) —

    The code that will be executed in the context of the object when the callback is invoked.

Returns:

  • (self) 


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# File 'lib/the_help/provides_callbacks.rb', line 58

def callback(name, &block)
  define_method("#{name}_without_logging", &block)
  define_method(name) do |*args|
    if defined?(logger)
      logger.debug("#{inspect} received callback :#{name}.")
    end
    send("#{name}_without_logging", *args)
    self
  end
  private name
  self
end