From 4eabb2133fe55a12c9c56e766cbe3db1c25d56ab Mon Sep 17 00:00:00 2001 From: drewc Date: Thu, 16 Jun 2005 19:58:49 -0700 Subject: [PATCH] explode-foreign-key now returns an empty instance if the key is NIL. also, as a second value it returns the name of toe forgeign slot. darcs-hash:20050617025849-39164-355e54ff23d6d991905567868c38e914922728d0.gz --- src/meta-model.lisp | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/meta-model.lisp b/src/meta-model.lisp index b0d1ff5..9ea1d3c 100644 --- a/src/meta-model.lisp +++ b/src/meta-model.lisp @@ -160,7 +160,9 @@ "returns the clsql view-class joined on SLOT" (dolist (s (list-join-attributes model)) (when (equal (getf (cdr s) :home-key) slot) - (return-from explode-foreign-key (slot-value model (car s)))))) + (let ((val (slot-value model (car s)))) + (return-from explode-foreign-key + (values (if val val (make-instance (getf (cdr s) :join-class))) (getf (cdr s) :foreign-key))))))) (defun find-join-helper (foreign-key) (lambda (class slot) -- 2.20.1