public function getTableData()
    {
        $items = FeedbackContactUs::selectRaw('*, DATE_FORMAT(created_at, "%d %b, %Y ") as date')
            ->where('created_at', '>=', $this->inputDateFrom() . '%')
            ->where('created_at', '<=', $this->inputDateTo() . '  23:59:59')
            ->orderBy('created_at')
            ->get();

        return DataTables::of($items)->addColumn('fullname', function ($row) {
            return $row->fullname;
        })->addColumn('date', function ($row) {
            return $row->created_at->format('d M Y');
        })->make(true);
    }