From: drewc <drewc@tech.coop>
Date: Mon, 20 Jun 2005 18:06:38 +0000 (-0700)
Subject: added rollback functionality to cancel
X-Git-Url: https://git.hcoop.net/clinton/lisp-on-lines.git/commitdiff_plain/1679abef7f7f18250837d49052d92e2f8ba2f6db?hp=a6644385238aac1694af714e321c34456bea3441

added rollback functionality to cancel

darcs-hash:20050620180638-39164-98e8c03962ca9d2fb6268d5117fdaac4be1171ae.gz
---

diff --git a/src/mewa/mewa.lisp b/src/mewa/mewa.lisp
index e384f74..ba7d6d9 100644
--- a/src/mewa/mewa.lisp
+++ b/src/mewa/mewa.lisp
@@ -89,13 +89,17 @@ attributes is an alist keyed on the attribute nreeame."
   (append (mapcar #'(lambda (s) 
 		      (cons (car s) 
 			    (gen-pslot 
-			     (if (meta-model:foreign-key-p model
-							   'ucw::foreign-key
-							   (car s))
-						   (cadr s))
-						 (string (car s)) (car s)))) 
-	  (meta-model:list-slot-types model))
-	  (mapcar #'(lambda (s) (cons s (append (gen-pslot 'ucw::has-many (string s) s) `(:presentation (make-presentation ,model :type :one-line)))))
+			     (if (meta-model:foreign-key-p model (car s))
+				 'ucw::foreign-key
+				 (cadr s))
+			     (string (car s)) (car s)))) 
+		  (meta-model:list-slot-types model))
+	  (mapcar #'(lambda (s) 
+		      (cons s (append (gen-pslot 'ucw::has-many (string s) s) 
+				      `(:presentation 
+					(make-presentation 
+					 ,model 
+					 :type :one-line)))))
 		  (meta-model:list-has-many model))))
 
 (defmethod set-default-attributes ((model t))
@@ -269,7 +273,11 @@ attributes is an alist keyed on the attribute nreeame."
 
 
 (defaction cancel-save-instance ((self mewa))
-  (answer nil))
+  (cond  
+    ((slot-value (instance self) 'clsql-sys::view-database)
+      (meta-model::update-instance-from-records (instance self))
+      (answer self))
+    (t (answer nil))))
 
 (defaction save-instance ((self mewa))
   (meta-model:sync-instance (instance self))