Introduction

A simple drop-in solution for providing UUID support for the IDs of your Eloquent models.

Both v1 and v4 IDs are supported out of the box, however should you need v3 or v5 support, you can easily add this in.

Installing

Reference the table below for the correct version to use in conjunction with the version of Laravel you have installed:

Laravel	This package
v5.8.*	v1.*
v6.*	v6.*
v7.*	v7.*
v8.*	v8.*
v9.*	v9.*
v10.*	v10.*

You can install the package via composer:

composer require goldspecdigital/laravel-eloquent-uuid:^10.0

Usage

There are two ways to use this package:

1. By extending the provided model classes (preferred and simplest method).
2. By using the provided model trait (allows for extending another model class).

Extending model

When creating a Eloquent model, instead of extending the standard Laravel model class, extend from the model class provided by this package:

<?php

namespace App\Models;

use GoldSpecDigital\LaravelEloquentUUID\Database\Eloquent\Model;

class BlogPost extends Model
{
    //
}

Extending user model

The User model that comes with a standard Laravel install has some extra configuration which is implemented in its parent class. This configuration only consists of implementing several interfaces and using several traits.

A drop-in replacement has been provided which you can use just as above, by extending the User class provided by this package:

<?php

namespace App\Models;

use GoldSpecDigital\LaravelEloquentUUID\Foundation\Auth\User as Authenticatable;

class User extends Authenticatable
{
    //
}

Using trait

As an alternative to extending the classes in the examples above, you also have the ability to use the provided trait instead. This requires a more involved setup process but allows you to extend your models from another class if needed:

<?php

namespace App\Models;

use GoldSpecDigital\LaravelEloquentUUID\Database\Eloquent\Uuid;
use Illuminate\Database\Eloquent\Model;

class BlogPost extends Model
{
    use Uuid;
    
    /**
     * The "type" of the auto-incrementing ID.
     *
     * @var string
     */
    protected $keyType = 'string';

    /**
     * Indicates if the IDs are auto-incrementing.
     *
     * @var bool
     */
    public $incrementing = false;

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $guarded = [];
}

Generating UUIDs

If you don't specify the value for the primary key of your model, a UUID will be automatically generated. However, if you do specify your own UUID then it will not generate one, but instead use the one you have explicitly provided. This can be useful when needing the know the ID of the model before you have created it:

// No UUID provided (automatically generated).
$model = Model::create();
echo $model->id; // abb034ae-fcdc-4200-8094-582b60a4281f

// UUID explicity provided.
$model = Model::create(['id' => '04d7f995-ef33-4870-a214-4e21c51ff76e']);
echo $model->id; // 04d7f995-ef33-4870-a214-4e21c51ff76e

Specifying UUID versions

By default, v4 UUIDs will be used for your models. However, you can also specify v1 UUIDs to be used by setting the following property/method on your model:

When extending the class

<?php

namespace App\Models;

use GoldSpecDigital\LaravelEloquentUUID\Database\Eloquent\Model;

class BlogPost extends Model
{
    /**
     * The UUID version to use.
     *
     * @var int
     */
    protected int $uuidVersion = 1;
}

When using the trait

<?php

namespace App\Models;

use GoldSpecDigital\LaravelEloquentUUID\Database\Eloquent\Uuid;
use Illuminate\Database\Eloquent\Model;

class BlogPost extends Model
{
    use Uuid;

    /**
     * The UUID version to use.
     *
     * @return int
     */
    protected function uuidVersion(): int
    {
        return 1;
    }
}

Support for v3 and v5

Should you need support for v3 or v5 UUIDs, you can simply override the method which is responsible for generating the UUIDs:

<?php

namespace App\Models;

use GoldSpecDigital\LaravelEloquentUUID\Database\Eloquent\Model;
use Ramsey\Uuid\Uuid;

class BlogPost extends Model
{
    /**
     * @throws \Exception
     * @return string
     */
    protected function generateUuid(): string
    {
        // UUIDv3 has been used here, but you can also use UUIDv5.
        return Uuid::uuid3(Uuid::NAMESPACE_DNS, 'example.com')->toString();
    }
}

Creating models

In addition of the make:model artisan command, you will now have access to uuid:make:model which has all the functionality of the standard make:model command (with exception of not being able to create a pivot model):

php artisan uuid:make:model Models/Post --all

Database migrations

The default primary ID column used in migrations will not work with UUID primary keys, as the default column type is an unsigned integer. UUIDs are 36 character strings so we must specify this in our migrations:

<?php

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

class CreateUsersTable extends Migration
{
    /**
     * Run the migrations.
     */
    public function up(): void
    {
        Schema::create('users', function (Blueprint $table): void {
            // Primary key.
            $table->uuid('id')->primary();
        });
    }
}

class CreatePostsTable extends Migration
{
    /**
     * Run the migrations.
     */
    public function up(): void
    {
        Schema::create('posts', function (Blueprint $table): void {
            // Primary key.
            $table->uuid('id')->primary();
        
            // Foreign key.
            $table->uuid('user_id');
            $table->foreign('user_id')->references('id')->on('users');
        });
    }
}

Running the tests

To run the test suite you can use the following command:

composer test

Contributing

Please read CONTRIBUTING.md for details on our code of conduct, and the process for submitting pull requests to us.

Versioning

We use SemVer for versioning. For the versions available, see the tags on this repository.

Authors

• GoldSpec Digital

See also the list of contributors who participated in this project.

License

This project is licensed under the MIT License - see the LICENSE.md file for details.