Calling method in parent class from subclass methods in Ruby

Question

I\'ve used super to initialize parent class but I cannot see any way of calling parent class from subclass methods.

I know PHP and other languages do ha

Answer 1

class Parent
  def self.parent_method
    "#{self} called parent method"
  end

  def parent_method
    "#{self} called parent method"
  end
end

class Child < Parent

  def parent_method
    # call parent_method as
    Parent.parent_method                # self.parent_method gets invoked
    # call parent_method as
    self.class.superclass.parent_method # self.parent_method gets invoked
    super                               # parent_method gets invoked 
    "#{self} called parent method"      # returns "# called parent method"
  end

end

Child.new.parent_method  #This will produce following output
Parent called parent method
Parent called parent method
# called parent method
#=> "# called parent method"

self.class.superclass == Parent #=> true

Parent.parent_method and self.class.superclass will call self.parent_method(class method) of Parent while super calls the parent_method(instance method) of Parent.