ladill-merchant/app/Models/QrDocument.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\HasMany;

class QrDocument extends Model
{
    protected $fillable = [
        'user_id',
        'title',
        'disk',
        'path',
        'mime_type',
        'size_bytes',
        'page_count',
    ];

    protected $casts = [
        'size_bytes' => 'integer',
        'page_count' => 'integer',
    ];

    public function user(): BelongsTo
    {
        return $this->belongsTo(User::class);
    }

    public function qrCodes(): HasMany
    {
        return $this->hasMany(QrCode::class);
    }
}