Merge branch 'fix-admin-save-failed' into 'master'

fix trip infos save button resulting in failure notifications

Closes #26

See merge request !9

registration-system/frameworks/Fahrt.php

@@ -79,9 +79,9 @@ class Fahrt {
 
     public function save() {
         if ($this->environment->isSuperAdmin() and $this->newFahrt) {
-            return $this->environment->database->insert('fahrten', $this->data)->fetchAll();
+            return $this->environment->database->insert('fahrten', $this->data)->rowCount() > 0;
         } elseif ($this->environment->isAdmin() and !$this->newFahrt) {
-            return $this->environment->database->update('fahrten', $this->data, ['fahrt_id' => $this->fid])->fetchAll();
+            return $this->environment->database->update('fahrten', $this->data, ['fahrt_id' => $this->fid])->rowCount() > 0;
         } else {
             throw new Exception('Nicht erlaubt!');
         }
@@ -248,4 +248,4 @@ class Fahrt {
         $state = $this->getRegistrationState();
         return $state == Fahrt::STATUS_IS_OPEN_FULL or $state == Fahrt::STATUS_IS_OPEN_NOT_FULL;
     }
-}
\ No newline at end of file
+}