From: Joel VanderWerf <vjoel@...>
Date: 2003-10-01T13:51:41+09:00
Subject: Re: Saving and restoring with YAML

Ben Giddings wrote:
> Hi all,
> 
> I have a quick question about YAML.  From the documentation it seems as 
> though it was designed for, or is well suited to saving/restoring an 
> object's state, but from looking at it I can't quite tell what the ideal 
> way of doing this is.  Say I have a class that looks like:
> 
> class Foo
>   attr_accessor :bar, :arr, :buzz
> 
>   def initialize
>     @bar = true
>     @arr = []
>     @buzz = "Here is some string"
>   end
> end
> 
> 
> What would the "save" and "load" methods of that class look like if I 
> wanted to use YAML?

If you require 'yaml', your class already has #to_yaml, which is a save 
method, and you can use YAML.load to get it back:

require 'yaml'
foo = Foo.new
YAML.load(foo.to_yaml)

Maybe I'm misunderstanding your question. Do you mean you want instances 
of Foo to always be serialized in YAML format, even when using Marshal?