From cd4e72208fad964a22c99bb9fc15708a528a1e39 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 1 Nov 2011 12:41:02 +0200
Subject: Implement support for optimistic concurrency

New pragmas: optimistic, version. New test: optimistic. New database
function: reload().
---
 odb/mysql/statement.cxx | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

(limited to 'odb/mysql/statement.cxx')

diff --git a/odb/mysql/statement.cxx b/odb/mysql/statement.cxx
index 7aa036d..4cd6f35 100644
--- a/odb/mysql/statement.cxx
+++ b/odb/mysql/statement.cxx
@@ -5,8 +5,6 @@
 
 #include <cassert>
 
-#include <odb/exceptions.hxx> // object_not_persistent
-
 #include <odb/mysql/mysql.hxx>
 #include <odb/mysql/statement.hxx>
 #include <odb/mysql/connection.hxx>
@@ -304,7 +302,7 @@ namespace odb
         translate_error (conn_, stmt_);
     }
 
-    void update_statement::
+    unsigned long long update_statement::
     execute ()
     {
       conn_.clear ();
@@ -325,13 +323,10 @@ namespace odb
 
       my_ulonglong r (mysql_stmt_affected_rows (stmt_));
 
-      if (r > 0)
-        return;
-
-      if (r == 0)
-        throw object_not_persistent ();
-      else
+      if (r == static_cast<my_ulonglong> (-1))
         translate_error (conn_, stmt_);
+
+      return static_cast<unsigned long long> (r);
     }
 
     // delete_statement
-- 
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