From 9912597f6562a6afa0242250b4537019876cd3fa Mon Sep 17 00:00:00 2001
From: helge <helge@e4a50df8-12e2-0310-a44c-efbce7f8a7e3>
Date: Thu, 27 Sep 2007 21:23:27 +0000
Subject: [PATCH] improved tx handling code

git-svn-id: http://svn.opengroupware.org/SOPE/trunk@1540 e4a50df8-12e2-0310-a44c-efbce7f8a7e3
---
 sope-gdl1/PostgreSQL/ChangeLog             |  5 +++
 sope-gdl1/PostgreSQL/PostgreSQL72Context.m | 50 ++++++++++++++--------
 sope-gdl1/PostgreSQL/Version               |  2 +-
 3 files changed, 38 insertions(+), 19 deletions(-)

diff --git a/sope-gdl1/PostgreSQL/ChangeLog b/sope-gdl1/PostgreSQL/ChangeLog
index 85d8c7bf..d762e00e 100644
--- a/sope-gdl1/PostgreSQL/ChangeLog
+++ b/sope-gdl1/PostgreSQL/ChangeLog
@@ -1,3 +1,8 @@
+2007-09-27  Helge Hess  <helge.hess@opengroupware.org>
+
+	* PostgreSQL72Context.m: changed to use -evaluateExpressionX: for
+	  transaction queries, log error exceptions (v4.7.51)
+
 2007-06-09  Helge Hess  <helge.hess@opengroupware.org>
 
 	* added NSNumber+ExprValue.m which returns 0/1 for bool values on
diff --git a/sope-gdl1/PostgreSQL/PostgreSQL72Context.m b/sope-gdl1/PostgreSQL/PostgreSQL72Context.m
index 45cc74da..c1060f38 100644
--- a/sope-gdl1/PostgreSQL/PostgreSQL72Context.m
+++ b/sope-gdl1/PostgreSQL/PostgreSQL72Context.m
@@ -2,6 +2,7 @@
    PostgreSQL72Context.m
 
    Copyright (C) 1999 MDlink online service center GmbH and Helge Hess
+   Copyright (C) 2007 Helge Hess
 
    Author: Helge Hess (helge@mdlink.de)
 
@@ -38,41 +39,54 @@
 }
 
 - (BOOL)primaryBeginTransaction {
-  BOOL result;
-
-  result = [[[channels lastObject]
-                       nonretainedObjectValue]
-                       evaluateExpression:@"BEGIN TRANSACTION"];
-
-  return result;
+  NSException *error;
+
+  error = [[[channels lastObject]
+                      nonretainedObjectValue]
+                      evaluateExpressionX:@"BEGIN TRANSACTION"];
+  if (error == nil)
+    return YES;
+  
+  NSLog(@"%s: could not begin transaction: %@", __PRETTY_FUNCTION__, error);
+  return NO;
 }
 
 - (BOOL)primaryCommitTransaction {
-  BOOL result;
+  NSException *error;
 
-  result = [[[channels lastObject]
-                       nonretainedObjectValue]
-                       evaluateExpression:@"COMMIT TRANSACTION"];
+  error = [[[channels lastObject]
+                      nonretainedObjectValue]
+                      evaluateExpressionX:@"COMMIT TRANSACTION"];
 
-  return result;
+  if (error == nil)
+    return YES;
+  
+  NSLog(@"%s: could not commit transaction: %@", __PRETTY_FUNCTION__, error);
+  return NO;
 }
 
 - (BOOL)primaryRollbackTransaction {
-  BOOL result;
+  NSException *error;
+
+  error = [[[channels lastObject]
+                      nonretainedObjectValue]
+                      evaluateExpressionX:@"ROLLBACK TRANSACTION"];
 
-  result = [[[channels lastObject]
-                       nonretainedObjectValue]
-                       evaluateExpression:@"ROLLBACK TRANSACTION"];
-  return result;
+  if (error == nil)
+    return YES;
+  
+  NSLog(@"%s: could not rollback transaction: %@", __PRETTY_FUNCTION__, error);
+  return NO;
 }
 
 - (BOOL)canNestTransactions {
   return NO;
 }
 
-// NSCopying methods
+/* NSCopying methods */
 
 - (id)copyWithZone:(NSZone *)zone {
+  // called when the object is used in some datastructures?
   return [self retain];
 }
 
diff --git a/sope-gdl1/PostgreSQL/Version b/sope-gdl1/PostgreSQL/Version
index 430b6e6f..13f24be8 100644
--- a/sope-gdl1/PostgreSQL/Version
+++ b/sope-gdl1/PostgreSQL/Version
@@ -1,5 +1,5 @@
 # version file
 
-SUBMINOR_VERSION:=50
+SUBMINOR_VERSION:=51
 
 # v4.5.41 requires libGDLAccess v4.5.50
-- 
2.39.5