Verde-Web/app/Models/ServiceArea.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsToMany;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Support\Str;

class ServiceArea extends Model
{
    use HasFactory, SoftDeletes;

    public const STATUS_ACTIVE = 'active';
    public const STATUS_INACTIVE = 'inactive';

    protected $fillable = [
        'uuid',
        'name',
        'code',
        'status',
        'description',
    ];

    public function getRouteKeyName(): string
    {
        return 'uuid';
    }

    protected static function booted(): void
    {
        static::creating(function (self $area): void {
            if (empty($area->uuid)) {
                $area->uuid = (string) Str::uuid();
            }
        });
    }

    public function barangays(): BelongsToMany
    {
        return $this->belongsToMany(Barangay::class, 'service_area_barangay')
            ->withTimestamps();
    }
}