only flush DB if there are no errors

Author: nunoplopes

.htaccess

@@ -1,7 +1,7 @@
 RewriteCond %{SERVER_PORT} ^80$
 RewriteRule ^(.*)$ https://pic1dei.tecnico.ulisboa.pt/$1 [L,R=301]
 
-<Files *>
+<Files *.*>
   Order Deny,Allow
   Deny from all
 </Files>

index.php

@@ -139,8 +139,10 @@ function terminate($error_message = null, $template = 'main.html.twig',
   if ($select_form)
     $content['select_form'] = $select_form->createView();
 
+  if (!$error_message) {
+    db_flush();
+  }
   echo $twig->render($template, $content + $extra_fields);
-  db_flush();
   exit();
 }