Edit and update tags.

app/Http/Requests/JournalFormRequest.php

@@ -42,6 +42,7 @@ class JournalFormRequest extends Request
             'date'               => new Carbon($this->get('date')),
             'budget_id'          => intval($this->get('budget_id')),
             'category'           => $this->get('category'),
+            'tags'               => explode(',', $this->get('tags')),
         ];
     }