New database system that uses PDO if present/Test script for doing database upgrades.

library/dddbl2/config.inc.php

@@ -0,0 +1,83 @@
+<?php
+
+namespace DDDBL;
+
+require_once __DIR__ . '/inc/DataObjectPool.class.php';
+require_once __DIR__ . '/inc/DataObject.class.php';
+require_once __DIR__ . '/inc/Singleton.class.php';
+require_once __DIR__ . '/inc/Queue.class.php';
+
+require_once __DIR__ . '/inc/exceptions/UnexpectedParameterTypeException.class.php';
+require_once __DIR__ . '/inc/exceptions/QueryException.class.php';
+
+require_once __DIR__ . '/inc/database.func.php';
+
+# position of handler, which gets the active database-connection into the queue
+define('QUEUE_GET_DB_CONNECTION_POSITION', 10);
+define('QUEUE_GET_QUERY_POSITION',         20);
+define('QUEUE_BIND_DATA_TYPE_POSITION',    30);
+define('QUEUE_PREPARE_QUERY_POSITION',     40);
+define('QUEUE_EXECUTE_QUERY_POSITION',     50);
+define('QUEUE_FORMAT_RESULT_POSITION',     60);
+define('QUEUE_CLOSE_CURSOR_POSITION',      70);
+
+###############################################
+### set validator for "Database-Definition" ###
+###############################################
+
+$objDBDefinitionValidator = function ($arrValues) {
+
+  foreach(array('CONNECTION', 'USER', 'PASS') AS $strDefinitionField)
+    if(!isset($arrValues[$strDefinitionField]) || !is_string($arrValues[$strDefinitionField]))
+      return false;
+
+  if(isset($arrValues['PDO']) && !is_a($arrValues['PDO'], '\PDO'))
+    return false;
+
+  return true;
+
+};
+
+$objDataObjectPool = new DataObjectPool('Database-Definition');
+$objDataObjectPool->setValidator($objDBDefinitionValidator);
+
+############################################
+### set validator for "Query-Definition" ###
+############################################
+
+$objQueryDefinitionValidator = function ($arrValues) {
+
+  if(!isset($arrValues['QUERY']) || !is_string($arrValues['QUERY']))
+    return false;
+
+  if(isset($arrValues['HANDLER']) && !is_string($arrValues['HANDLER']))
+    return false;
+
+  return true;
+
+};
+
+$objDataObjectPool = new DataObjectPool('Query-Definition');
+$objDataObjectPool->setValidator($objQueryDefinitionValidator);
+
+##########################################
+### set validator for "Result-Handler" ###
+##########################################
+
+$objResultHandlerValidator = function ($arrValues) {
+
+  if(!isset($arrValues['HANDLER']) || !is_callable($arrValues['HANDLER']))
+    return false;
+
+  return true;
+};
+
+$objDataObjectPool = new DataObjectPool('Result-Handler');
+$objDataObjectPool->setValidator($objResultHandlerValidator);
+
+#########################################
+### register queue and result handler ###
+#########################################
+
+require_once __DIR__ . '/handler/register_queue_handler.inc.php';
+require_once __DIR__ . '/handler/register_result_handler.inc.php';