More stuff.

app/Http/Requests/TagFormRequest.php

@@ -48,6 +48,7 @@ class TagFormRequest extends Request
             'date'        => 'date',
             'latitude'    => 'numeric|min:-90|max:90',
             'longitude'   => 'numeric|min:-90|max:90',
+            'zoomLevel'   => 'numeric|min:0|max:80',
             'tagMode'     => 'required|in:nothing,balancingAct,advancePayment'
         ];
     }