From: why the lucky stiff <ruby-talk@...>
Date: 2005-03-22T05:22:23+09:00
Subject: Re: YAML Parsing, ignoring objects?

Travis Smith wrote:

>I have a class which when YAMLized produces...
>
>--- !ruby/object:Player
>name: dude
>password: dude
>session: !ruby/object:TCPSocket {}
>thread: !ruby/object:Thread {}
>
>I'd like to figure out a way for it to just ignore the Thread and/or
>TCPSocket type. It won't choke on the socket, but it will loading up
>the Thread. Can I add a domain type that will just produce nil not
>matter what happens?
>  
>
Hey, Travis.  You can define to_yaml_properties for any object, which is
simply an method which returns an array of properties you want in your 
YAML doc, in the order you like.

  class Player
     def to_yaml_properties; ['@name', '@password']; end
  end

You can read more in the docs[1].  See the section "Type Families".

_why

[1] http://yaml4r.sf.net/doc/