some constants for the db update failure possibilities

boot.php

@@ -73,6 +73,14 @@ define ( 'HOOK_HOOK',      0);
 define ( 'HOOK_FILE',      1);
 define ( 'HOOK_FUNCTION',  2);
 
+/**
+ * DB update return values
+ */
+
+define ( 'UPDATE_SUCCESS', 0);
+define ( 'UPDATE_FAILED',  1);
+
+
 /**
  *
  * page/profile types