class_eval is ideal for adding methods to a class dynamically: : class_eval « Reflection « Ruby

1. Ruby
2. Reflection
3. class_eval

class_eval is ideal for adding methods to a class dynamically:

class Person
end

def add_accessor_to_person(accessor_name)
  Person.class_eval %Q{
    attr_accessor :#{accessor_name}
  }
end

person = Person.new
add_accessor_to_person :name
add_accessor_to_person :gender
person.name = "Peter Cooper"
person.gender = "male"
puts "#{person.name} is #{person.gender}"

 

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