From 0e37272b9ab8f37ad2f3d37bf6a09c68e5117d02 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 7 Nov 2011 15:00:06 +0200
Subject: Add support for SQL statement tracing

---
 odb/pgsql/transaction-impl.cxx | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'odb/pgsql/transaction-impl.cxx')

diff --git a/odb/pgsql/transaction-impl.cxx b/odb/pgsql/transaction-impl.cxx
index e4604e3..ac90e93 100644
--- a/odb/pgsql/transaction-impl.cxx
+++ b/odb/pgsql/transaction-impl.cxx
@@ -7,6 +7,8 @@
 
 #include <libpq-fe.h>
 
+#include <odb/tracer.hxx>
+
 #include <odb/pgsql/database.hxx>
 #include <odb/pgsql/connection.hxx>
 #include <odb/pgsql/error.hxx>
@@ -46,6 +48,12 @@ namespace odb
         odb::transaction_impl::connection_ = connection_.get ();
       }
 
+      {
+        odb::tracer* t;
+        if ((t = connection_->tracer ()) || (t = database_.tracer ()))
+          t->execute (*connection_, "BEGIN");
+      }
+
       auto_handle<PGresult> h (PQexec (connection_->handle (), "begin"));
 
       if (!h || PGRES_COMMAND_OK != PQresultStatus (h))
@@ -55,6 +63,12 @@ namespace odb
     void transaction_impl::
     commit ()
     {
+      {
+        odb::tracer* t;
+        if ((t = connection_->tracer ()) || (t = database_.tracer ()))
+          t->execute (*connection_, "COMMIT");
+      }
+
       auto_handle<PGresult> h (PQexec (connection_->handle (), "commit"));
 
       if (!h || PGRES_COMMAND_OK != PQresultStatus (h))
@@ -64,6 +78,12 @@ namespace odb
     void transaction_impl::
     rollback ()
     {
+      {
+        odb::tracer* t;
+        if ((t = connection_->tracer ()) || (t = database_.tracer ()))
+          t->execute (*connection_, "ROLLBACK");
+      }
+
       auto_handle<PGresult> h (PQexec (connection_->handle (), "rollback"));
 
       if (!h || PGRES_COMMAND_OK != PQresultStatus (h))
-- 
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