From: Carlos Caof2005 <caof2005@...>
Date: 2007-04-14T04:54:38+09:00
Subject: Change the value of an attribute-object inside a method?

Folks:

This is a simple newbe question on how to change the value of an
attribute and I have tried to do it in several ways without success.
Here is the code:

###--- Main Class ---###
class Employee
  attr_writer :name
  attr_reader :name

  def name
    @name
  end

  def initialize(name)
    puts "Creating object...."
    @name=name
    puts "Object created!"
  end
end

def method_to_call( parameter1 )
   objectEmployee = Employee.new( parameter1 )
   puts " Name:=" + objectEmployee.name
   puts
   yield( objectEmployee.name )
   puts
   puts " Name:=" + objectEmployee.name
   puts
end

method_to_call("Carlos") do |paramA|
    paramA = paramA + " Aquiles"
    puts "                      Trying to modify parameter!....!"
    puts "                      => paramA := " + paramA
end
==================
The output is:

Creating object....
Object created!
 Name:=Carlos

                       Trying to modify parameter!....!
                       => paramA := Carlos Aquiles

 Name:=Carlos
==================
So the question is how can I pass an attribute or Object to a method and
that inside it I can change the value of the attribute or Object, so
after leaving the method the attribute or object gets updated.

Any help will be very appreciated!

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