Module: InheritanceHelper::Methods

Defined in:
lib/inheritance-helper/methods.rb

Overview

Collection of utility methods for rewriting class methods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.redefine_class_method(klass, method, value) ⇒ Object 



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# File 'lib/inheritance-helper/methods.rb', line 6

def self.redefine_class_method(klass, method, value)
  class << klass; self; end.send(:define_method, method) { value }
  klass
end

Instance Method Details

#add_value_to_class_method(method, value) ⇒ Object

useful for adding data to hashes. when working with arrays it keeps a flat data set



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# File 'lib/inheritance-helper/methods.rb', line 17

def add_value_to_class_method(method, value)
  old_value = send(method)

  new_value =
    case old_value
    when Hash
      old_value.merge(value)
    else
      old_value + Array(value)
    end

  redefine_class_method(method, old_value.frozen? ? new_value.freeze : new_value)
end

#append_value_to_class_method(method, value) ⇒ Object

useful for working with arrays and maintain a list of values



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# File 'lib/inheritance-helper/methods.rb', line 32

def append_value_to_class_method(method, value)
  old_value = send(method)
  new_value = old_value.dup << value
  redefine_class_method(method, old_value.frozen? ? new_value.freeze : new_value)
end

#redefine_class_method(method, value) ⇒ Object 



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# File 'lib/inheritance-helper/methods.rb', line 11

def redefine_class_method(method, value)
  ::InheritanceHelper::Methods.redefine_class_method(self, method, value)
end