fixes #440

lib/Doctrine/Connection.php

@@ -1016,7 +1016,7 @@ abstract class Doctrine_Connection extends Doctrine_Configurable implements Coun
 
         $this->clear();
         
-        $this->dbh = null;
+        unset($this->dbh);
         $this->isConnected = false;
 
         $this->getAttribute(Doctrine::ATTR_LISTENER)->postClose($event);
@@ -1122,6 +1122,7 @@ abstract class Doctrine_Connection extends Doctrine_Configurable implements Coun
     {
         $this->transaction->rollback($savepoint);
     }
+
     /**
      * returns a string representation of this object
      * @return string

lib/Doctrine/Manager.php

@@ -291,6 +291,9 @@ class Doctrine_Manager extends Doctrine_Configurable implements Countable, Itera
                 if (isset($parts['host']) && $parts['host'] == ':memory') {
                     $parts['database'] = ':memory:';
                     $parts['dsn']      = 'sqlite::memory:';
+                } else {
+                    $parts['database'] = $parts['path'];
+                    $parts['dsn'] = $parts['scheme'] . ':' . $parts['path'];     	
                 }
 
                 break;