Laravel 8 - PostgreSQL - UUID Trait Fully Worked

create_products_table.php

<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;
use Illuminate\Support\Facades\DB;

class CreateProductsTable extends Migration
{
  
    public function up()
    {
        Schema::create('products', function (Blueprint $table) {
            $table->uuid('id')->primary()->default(DB::raw('uuid_generate_v4()'));
            $table->uuid('brand_id');
            $table->longText('title');
            $table->string('slug')->unique();
            $table->longText('description');
            $table->decimal('price');
            $table->timestamps();
        });
    }
  
    public function down()
    {
        Schema::dropIfExists('products');

    }
}

Product.php

<?php

namespace App\Models;

use App\Traits\Uuid;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class Product extends Model
{
    use HasFactory, Uuid;

    protected $fillable = [
        'title',
        'slug',
        'description',
        'price',
        'brand_id',
        'discount_id'
    ];
  
    protected $casts = [
        'id' => 'string'
    ];
    protected $primaryKey = 'id';
    public $incrementing = false;

    public function insects(): BelongsToMany
    {
        return $this->belongsToMany(Insect::class);
    }
 
}

Uuid.php

<?php

namespace App\Traits;

use Illuminate\Support\Str;

trait Uuid
{
    /**
     * Boot function from Laravel.
     */
    protected static function boot()
    {
        parent::boot();
        static::creating(function ($model) {
            if (empty($model->{$model->getKeyName()})) {
                $model->{$model->getKeyName()} = Str::uuid()->toString();
            }
        });
    }
    /**
     * Get the value indicating whether the IDs are incrementing.
     *
     * @return bool
     */
    public function getIncrementing()
    {
        return false;
    }
    /**
     * Get the auto-incrementing key type.
     *
     * @return string
     */
    public function getKeyType()
    {
        return 'string';
    }
}