sfp_api_laravel_serprati/app/Models/Appointment.php

<?php

namespace App\Models;

use App\Enums\AppointmentStatusEnum;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\SoftDeletes;

class Appointment extends Model
{
    use SoftDeletes;

    protected $guarded = ['id'];

    protected function casts(): array
    {
        return [
            'date'          => 'date',
            'requested_at'  => 'datetime',
            'status'        => AppointmentStatusEnum::class,
            'auto_approved' => 'boolean',
        ];
    }

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

    public function approvedByUser(): BelongsTo
    {
        return $this->belongsTo(User::class, 'approved_by_user_id');
    }

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

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