如何在Laravel Excel中只导出今天的记录

use App\Record;
use Carbon\Carbon;
use Maatwebsite\Excel\Facades\Excel;

public function exportTodayRecords()
{
    $today = Carbon::today();
    
    $records = Record::whereDate('created_at', $today)->get();

    return Excel::download(new RecordsExport($records), 'today_records.xlsx');
}

php artisan make:export RecordsExport --model=Record

use App\Record;
use Maatwebsite\Excel\Concerns\FromCollection;

class RecordsExport implements FromCollection
{
    protected $records;

    public function __construct($records)
    {
        $this->records = $records;
    }

    public function collection()
    {
        return $this->records;
    }
}

Route::get('export-today-records', 'RecordController@exportTodayRecords');