strprfcrm/app/Models/Schedule.php

<?php

namespace App\Models;

use App\Models\Dictionary\Area;
use App\Models\Dictionary\District;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class Schedule extends Model
{
    protected $fillable = [
        'installation_date',
        'address_code',
        'manual',
        'source',
        'order_id',
        'district_id',
        'area_id',
        'object_address',
        'object_type',
        'mafs',
        'mafs_count',
        'brigadier_id',
        'comment',
    ];

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

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

    public function brigadier(): BelongsTo
    {
        return $this->belongsTo(User::class, 'brigadier_id', 'id');
    }
}