Как я могу обработать Laravel Maatwebsite / Excel с отношениями один ко многим?

Question

Я создаю ресурс API, который позволяет экспортировать данные отчетов в формате .xlsx. Проблема в том, что некоторые данные имеют отношение один ко многим, и я не могу найти документацию для этого.

Структура данных довольно проста, она выглядит следующим образом:

App\User {#103075
     id: 1,
     company_id: 1,
     name: "Test User",
     email: "test@prismahr.com",
     email_verified_at: null,
     created_at: "2020-03-28 17:03:15",
     updated_at: "2020-03-28 17:03:15",
     educations: Illuminate\Database\Eloquent\Collection {#103046
       all: [
         App\Education {#103076
           id: 1,
           user_id: 1,
           level: "est",
           institution: "reprehenderit",
           major: "soluta",
           start: "1985-11-08",
           end: "1997-09-29",
           created_at: "2020-03-28 17:03:38",
           updated_at: "2020-03-28 17:03:38",
         },
         App\Education {#103066
           id: 2,
           user_id: 1,
           level: "fuga",
           institution: "et",
           major: "facilis",
           start: "2018-06-07",
           end: "1989-08-13",
           created_at: "2020-03-28 17:03:38",
           updated_at: "2020-03-28 17:03:38",
         },
         App\Education {#103087
           id: 3,
           user_id: 1,
           level: "fuga",
           institution: "quibusdam",
           major: "quidem",
           start: "1990-11-24",
           end: "2002-02-28",
           created_at: "2020-03-28 17:03:38",
           updated_at: "2020-03-28 17:03:38",
         },
         App\Education {#103068
           id: 4,
           user_id: 1,
           level: "eveniet",
           institution: "corporis",
           major: "tempore",
           start: "2000-09-12",
           end: "1993-02-10",
           created_at: "2020-03-28 17:03:38",
           updated_at: "2020-03-28 17:03:38",
         },
         App\Education {#103042
           id: 5,
           user_id: 1,
           level: "ut",
           institution: "modi",
           major: "incidunt",
           start: "2000-03-12",
           end: "1989-02-02",
           created_at: "2020-03-28 17:03:38",
           updated_at: "2020-03-28 17:03:38",
         },
       ],
     },
   }

Я уже создал класс Export для этого, но не могу получить объект user. Пожалуйста, посмотрите на мой сценарий:

<?php

namespace App\Exports\Sheet;

use Maatwebsite\Excel\Concerns\FromCollection;
use Maatwebsite\Excel\Concerns\ShouldAutoSize;
use Maatwebsite\Excel\Concerns\WithMapping;
use Maatwebsite\Excel\Concerns\WithTitle;

class UsersEducationsSheet implements FromCollection, WithTitle, WithMapping, ShouldAutoSize
{
    /**
     * We should provide company id so the exporter does not
     * export the wrong users data from another company.
     *
     * @var integer
     */
    private $companyId;

    /**
     * We should check if the user wants the result to includes
     * all data from the collection instance or only specific
     * users data.
     *
     * @var boolean
     */
    private $exportAll;

    /**
     * We should provide user id to be used by the exporter
     * to determine which users to be exported.
     *
     * @var integer
     */
    private $userId;

    /**
     * Register all the variables into constructor.
     *
     * @param integer $companyId
     * @param boolean $exportAll
     * @param integer $userId
     */
    public function __construct(int $companyId = null, bool $exportAll = true, int $userId = null)
    {
        $this->companyId = $companyId;
        $this->exportAll = $exportAll;
        $this->userId = $userId;
    }

    /**
     * Define heading for the fields.
     *
     * @return array
     */
    public function headings(): array
    {
        return [
            '#',
            'Employee Name',
            'Level',
            'Institution',
            'Major',
            'Start Year',
            'End Year'
        ];
    }

    /**
     * Map the collection into a proper orders.
     *
     * @param object $user
     * @return array
     */
    public function map($education): array
    {
        return [
            $education->user->name,
            $education->level,
            $education->institution,
            $education->major,
            $education->start,
            $education->end,
        ];
    }

    public function collection()
    {
        if ($this->exportAll) {
            return Education::select('level', 'institution', 'major', 'start', 'end')
                ->with(['user' => function ($user) {
                    $user->whereCompanyId($this->companyId);
                }])
                ->get();
        }
    }
}

Есть идеи?