Ok I figured it out, dao-keys "method" is a reader for effective-keys on dao-class. I am still learning clos... *sigh*

On Fri, 2009-02-27 at 11:24 +0200, Phil Marneweck wrote:

Thanx, I never thought about it being a method. I don't know how I missed it looking at the code. It works fine but I would like to understand how it works...

If I understand correctly there is two versions, the first returns a list of keys and the second returns a list of key values.

;;first (defmethod dao-keys ((class-name symbol)) (dao-keys (find-class class-name)))

;;second (defmethod dao-keys (dao) (mapcar #'(lambda (slot) (slot-value dao slot)) (dao-keys (class-of dao))))

Please explain to me how the first one works, to me it just looks like it calls itself?

Thanx

----- Original Message ------ From:Marijn Haverbeke Sent:Friday, February 27, 2009 09:37 To: postmodern-devel@common-lisp.net; Subject:Re: [postmodern-devel] Get keys out of dao-class

Doesn't dao-keys work? There's no defun for it since it's a method. Call it on a class to get the slot names, on an instance to get the slot values.

Best, Marijn

---

postmodern-devel mailing list postmodern-devel@common-lisp.net http://common-lisp.net/cgi-bin/mailman/listinfo/postmodern-devel