我是一个Laravel和Inertia的初学者，我使用Laravel 10和Inertia和React。
当我转到索引页时，字段“$this->typeEducation->title”已填充，但当我单击编辑时，该字段为空。然后我收到错误消息：“尝试读取null上的属性“title””
型号：

class Education extends Model
{
    use HasFactory;

    protected $fillable = [
        'title',
        'education_type_id',
        'is_active',
        'start_date',
        'end_date',
    ];

    public function typeEducation() {
        return $this->belongsTo(EducationType::class, 'education_type_id', 'id');
    }
}

字符串
资源：

class EducationResource extends JsonResource
{
    /**
     * Transform the resource into an array.
     *
     * @return array<string, mixed>
     */
    public function toArray(Request $request): array
    {
        return [
            'id' => $this->id,
            'title' => $this->title,
            'type' => $this->typeEducation->title,
            'isActive' => $this->is_active,
            'startDate' => $this->start_date,
            'endDate' => $this->end_date,
            'educationTypes' => EducationTypeResource::collection($this->whenLoaded('educationTypes'))
        ];
    }
}

型
控制器

class EducationController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index(): Response
    {
        return Inertia::render('School/Education/EducationIndex', [
            'education' => EducationResource::collection(Education::all())
        ]);
    }

    /**
     * Show the form for editing the specified resource.
     */
    public function edit(Education $education): Response
    {
        $education->load(['typeEducation']);
        return Inertia::render('School/Education/Edit', [
            'education' => new EducationResource($education),
            'educationTypes' => EducationTypeResource::collection(EducationType::all())
        ]);
    }
}

型
我做错了什么？