id)==null) { $retval="Nein"; } return $retval; } public static function payment_date($user_id,$season_id) { $season = Season::getCurrent(); if ($season) { $payment = Payment::where([ ['user_id', '=', $user_id], ['season_id', '=', $season->id] ])->first(); if ($payment) { if ($payment->paid_date) { return $payment->paid_date; } } else { $payment= Payment::create([ 'user_id' => $user_id, 'season_id'=> $season->id, 'paid_date'=> null ]); $payment->save(); } } return null; } }