[glom] DbUtils: Improve debug output.

[Murray Cumming <murrayc src gnome org>]

commit 8f7cb9711755a2d20e69e0fdbda68ef5dcc52dad
Author: Murray Cumming <murrayc murrayc com>
Date:   Fri Sep 10 15:42:55 2010 +0200

    DbUtils: Improve debug output.
    
    * glom/libglom/db_utils.cc: query_execute_select(): Try to get more
      information about a connection timeout error when it happens.

 ChangeLog                |    7 +++++++
 glom/libglom/db_utils.cc |    9 ++++++++-
 2 files changed, 15 insertions(+), 1 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index e27379e..51982cd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2010-09-10  Murray Cumming  <murrayc murrayc com>
 
+	DbUtils: Improve debug output.
+
+	* glom/libglom/db_utils.cc: query_execute_select(): Try to get more
+  information about a connection timeout error when it happens.
+
+2010-09-10  Murray Cumming  <murrayc murrayc com>
+
 	Tests: derived instantiation: Test an extra dialog.
 
 	* glom/mode_design/layout/dialog_layout_calendar_related.h: Correct the
diff --git a/glom/libglom/db_utils.cc b/glom/libglom/db_utils.cc
index 5dd9a30..ac2d6ff 100644
--- a/glom/libglom/db_utils.cc
+++ b/glom/libglom/db_utils.cc
@@ -1472,7 +1472,14 @@ Glib::RefPtr<Gnome::Gda::DataModel> query_execute_select(const Glib::RefPtr<cons
   }
   catch(const Gnome::Gda::ServerProviderError& ex)
   {
-    std::cerr << G_STRFUNC << ": code=" << ex.code() << "message=" << ex.what() << std::endl;
+    if(ex.code() == Gnome::Gda::ServerProviderError::SERVER_PROVIDER_STATEMENT_EXEC_ERROR)
+    {
+      std::cerr << G_STRFUNC << ": code=SERVER_PROVIDER_STATEMENT_EXEC_ERROR, message=" << ex.what() << std::endl;
+    }
+    else
+    {
+      std::cerr << G_STRFUNC << ": code=" << ex.code() << "message=" << ex.what() << std::endl;
+    }
   }
   catch(const Gnome::Gda::SqlError& ex) //TODO: Make sure that statement_execute_select_builder() is documented as throwing this.
   {