From 79cdb16ebd29e11e9762ec81c32314433d85eaad Mon Sep 17 00:00:00 2001
From: "Kevin M. Rosenberg" <kevin@rosenberg.net>
Date: Wed, 5 May 2004 06:23:38 +0000
Subject: [PATCH] r9242: make update-records-from-instance on make-instance
 selectable

---
 ChangeLog        |  4 +++-
 sql/objects.lisp | 10 ++++++++--
 sql/package.lisp |  2 ++
 3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 223de7d..fe6e0f9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,7 +4,9 @@
 	* sql/objects.lisp: Make SELECT a normal function.
 	SELECT now accepts type-modified database identifiers, such as
         [foo :string] which means that the values in column foo are returned 
-        as Lisp strings.
+        as Lisp strings. Add new *update-records-on-make-instance* special
+	variable controlling automatic creation of new instances.
+	* sql/packages.lisp: Export *update-records-on-make-instance* 
 	* test/test-fdml.lisp: Add tests for type-modified
 	database identifiers.
 	
diff --git a/sql/objects.lisp b/sql/objects.lisp
index 833abd7..1342fe3 100644
--- a/sql/objects.lisp
+++ b/sql/objects.lisp
@@ -21,6 +21,10 @@
   (:metaclass standard-db-class)
   (:documentation "Superclass for all CLSQL View Classes."))
 
+(defvar *update-records-on-make-instance* nil
+  "When T, UPDATE-RECORDS-FROM-INSTANCE will be automatically called
+when a new instance of a view-class is created.")
+
 (defvar *db-deserializing* nil)
 (defvar *db-initializing* nil)
 
@@ -39,17 +43,19 @@
               (setf (slot-value instance slot-name) nil))))))
   (call-next-method))
 
+#+ignore ;; not currently used
 (defmethod (setf slot-value-using-class) (new-value (class standard-db-class)
 					  instance slot)
   (declare (ignore new-value instance slot))
   (call-next-method))
 
-(defmethod initialize-instance :around ((object standard-db-object)
+(defmethod initialize-instance ((object standard-db-object)
 					&rest all-keys &key &allow-other-keys)
   (declare (ignore all-keys))
   (let ((*db-initializing* t))
     (call-next-method)
-    (unless *db-deserializing*
+    (when (and *update-records-on-make-instance*
+	       (not *db-deserializing*))
       #+nil (created-object object)
       (update-records-from-instance object))))
 
diff --git a/sql/package.lisp b/sql/package.lisp
index 7a48137..98bfd2d 100644
--- a/sql/package.lisp
+++ b/sql/package.lisp
@@ -350,6 +350,8 @@
        #:locally-enable-sql-reader-syntax  ; syntax     xx
        #:restore-sql-reader-syntax-state   ; syntax     xx
 
+       #:*update-records-on-make-instance* 
+       
        ;;------------------------------------------------
        ;; Miscellaneous Extensions
        ;;------------------------------------------------
-- 
2.34.1