Is there a Limit row function in Laravel Excel import? - laravel

Question

I am using maatwebsite/excel package to import a CSV file. I cannot able to limit the imported rows. Like I need the first "n" number of rows from the uploaded file. I saw an interface
WithLimit
But when I am using that with Limit(). It throws some errors, like some table values which I am trying to insert is null. I think it is using the limit for columns. Are there any workarounds to fix the problem?
My controller
class FinancialTransController extends Controller
{
public function store(Request $request)
{
Excel::import(new FinancialTrans, request()->file('myfile'));
return 'success';
}
}
This is my import class
class FinancialTrans implements ToModel,WithHeadingRow
{
/**
* #param array $row
*
* #return \Illuminate\Database\Eloquent\Model|null
*/
public function model(array $row)
{
return new FinancialTran([
'module_id' =>$row['sr'],
'tran_id'=>$row['sr'],
'amount'=>$row['sr'],
'crdr'=>$row['sr'],
'tran_date'=>$row['date'],
'acad_year'=>$row['academic_year'],
'entry_mode'=>$row['sr'],
'voucher_number'=>$row['voucher_no'],
'br_id'=>$row['sr'],
]);
}
public function headingRow(): int
{
return 6;
}
}

Answer 1

WithHeadingRow loads all previous rows. use interface WithStartRow instead.
use Maatwebsite\Excel\Concerns\ToModel;
use Maatwebsite\Excel\Concerns\WithStartRow;
use Maatwebsite\Excel\Concerns\WithLimit;
class FinancialTrans implements ToModel, WithLimit, WithStartRow
{
protected $startRow;
public function __construct(int $startRow)
{
$this->startRow = $startRow;
}
...
public function startRow(): int
{
return $this->startRow;
}
public function limit(): int
{
return 10;
}

Answer 2

If you look to the code in maatwebsite/excel, you can see it is an interface with has a limit function, this one you has to implement. If you are using an IDE, it will often suggest to implement these methods.
use Maatwebsite\Excel\Concerns\WithLimit;
class FinancialTrans implements ToModel,WithHeadingRow, WithLimit
{
public function limit(): int
{
return 100; // only take 100 rows
}
...
}