laravel-excel导入数据能否同时操作多个表？

导入到集合，拿到数据行后按自己需求处理业务逻辑
docs.laravel-excel.com/3.1/imports...

namespace App\Imports;

use App\User;
use Illuminate\Support\Collection;
use Maatwebsite\Excel\Concerns\ToCollection;

class UsersImport implements ToCollection
{
    public function collection(Collection $rows)
    {
        // 处理 $rows 数据
    }
}

namespace App\Imports;

use App\Group;
use App\User;
use Maatwebsite\Excel\Row;
use Maatwebsite\Excel\Concerns\OnEachRow;

class UsersImport implements OnEachRow
{
    public function onRow(Row $row)
    {
        $rowIndex = $row->getIndex();
        $row      = $row->toArray();

        $group = Group::firstOrCreate([
            'name' => $row[1],
        ]);

        $group->users()->create([
            'name' => $row[0],
        ]);
    }
}

docs.laravel-excel.com/3.1/imports...

想请教题主,处理批量操作前是否有判重逻辑?有的话想参考 我这先单个判重后,再将结果拼接sql批量插入还是很慢 :disappointed_relieved: