Datafield: fix links and redirections

fixes #1847

application/controllers/DataController.php

@@ -58,13 +58,17 @@ class DataController extends ActionController
 
     public function fieldsAction()
     {
+        $this->setAutorefreshInterval(10);
         $this->tabs(new DataTabs())->activate('datafield');
         $this->addTitle($this->translate('Data Fields'));
         $this->actions()->add(Link::create(
             $this->translate('Add'),
             'director/datafield/add',
             null,
-            ['class' => 'icon-plus']
+            [
+                'class' => 'icon-plus',
+                'data-base-target' => '_next',
+            ]
         ));
 
         (new DatafieldTable($this->db()))->renderTo($this);

application/controllers/DatafieldController.php

@@ -26,7 +26,6 @@ class DatafieldController extends ActionController
         }
 
         $form = DirectorDatafieldForm::load()
-            ->setSuccessUrl('director/data/fields')
             ->setDb($this->db());
 
         if ($edit) {

application/forms/DirectorDatafieldForm.php

@@ -13,6 +13,8 @@ class DirectorDatafieldForm extends DirectorObjectForm
 {
     protected $objectName = 'Data field';
 
+    protected $listUrl = 'director/data/fields';
+
     protected function onRequest()
     {
         if ($this->hasBeenSent()) {