mindtwo / native-enum
Package for using native php enums.
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Requires
- php: >=8.2
- illuminate/collections: ^8.0|^9.0|^10.0|^11.0
- illuminate/contracts: ^8.0|^9.0|^10.0|^11.0
- illuminate/support: ^8.0|^9.0|^10.0|^11.0
- illuminate/translation: ^8.0|^9.0|^10.0|^11.0
Requires (Dev)
- laravel/pint: ^1.17
- phpunit/phpunit: ^9.5.10
- squizlabs/php_codesniffer: ^3.6.2
README
Enums are an invaluable tool for any developer working with PHP. They provide a way to easily and efficiently define a set of constants that can be used throughout a project. Enums also help to make code more maintainable and scalable. For example, they can help to define a set of values that must stay consistent throughout the project, like a list of permissions or statuses. This helps ensure that the same values are used in all the relevant parts of the code and that any changes are made in one place. Additionally, enums help to reduce the amount of manual testing needed since the values are already defined. Furthermore, enums provide a way for developers to quickly check for valid values, making it easier to spot errors in code and ensure that the application behaves as expected. Finally, enums are strongly typed, meaning that they can help to ensure that the correct type of data is used in each part of the application, which can help to improve overall code quality.
Inspired by the package BenSampo/laravel-enum this one uses the new native enums classes in PHP. The native functions are extended to work easily ams seamlessly with them in Laravel-based systems.
Everyone is welcome to contribute.
Enojy the Package!
Overview
Install
Installing the PHP Composer Package
Laravel Native PHP 8.1 Enums is a powerful package that can help you construct and maintain robust and scalable Laravel-based systems.
Requirements
- Laravel 9 or higher
- PHP 8.1 or higher
Composer install
Before you begin, you'll need to make sure you have the listed requirements and Composer installed on your system. You can find instructions for doing so here.
Once you have Composer installed, you can install "Laravel Native PHP 8.1 Enums" by running the following command from your project directory:
composer require mindtwo/native-enum
After the installation is complete, you'll now be ready to start using native enums in your project. Have fun!
Create enum
Artisan command
You can use the following Artisan command to generate a new native enum class in your project:
// Default: php artisan make:enum UserRole // Localized: php artisan make:enum UserRole --localized
Manual enum creation
You can also create a new native enum manually. The structure should look like this:
namespace App\Enums; enum UserRole: int { use BaseEnum; case ADMIN = 10; case CUSTOMER = 50; }
Usage
Base usage
UserRole::getRandomValue(); UserRole::getRandomName(); UserRole::getRandomInstance(); UserRole::asSelectArray(); UserRole::asArray(); UserRole::getValues(); UserRole::getNames(); UserRole::hasValue(50); UserRole::hasName('ADMIN');
Get specific enum values
UserRole::getValues('ADMIN'); UserRole::getValues(UserRole::ADMIN); UserRole::getValues([UserRole::ADMIN]); UserRole::getValues('CUSTOMER'); UserRole::getValues(UserRole::CUSTOMER); UserRole::getValues([UserRole::CUSTOMER]);
Get specific enum names
UserRole::getNames(10); UserRole::getNames(50); UserRole::getNames([10,50]);
Use static calls to get the primitive value
UserRole::ADMIN(); // 10 UserRole::CUSTOMER(); // 50
Validation
Enum value
You may validate that an enum value passed to a controller is a valid value for a given enum by using the EnumValue
rule.
use mindtwo\NativeEnum\Rules\EnumValue; public function store(Request $request) { $this->validate($request, [ 'user_role' => ['required', new EnumValue(UserRole::class)], ]); }
By default, type checking is set to strict, but you can bypass this by passing false
to the optional second parameter of the EnumValue class.
new EnumValue(UserRole::class, false) // Turn off strict type checking.
Enum name
You can also validate on names using the EnumName
rule. This is useful if you're taking the enum name as a URL parameter for sorting or filtering for example.
use mindtwo\NativeEnum\Rules\EnumKey; public function store(Request $request) { $this->validate($request, [ 'user_role' => ['required', new EnumName(UserRole::class)], ]); }
Enum instance
Additionally you can validate that a parameter is an instance of a given enum.
use mindtwo\NativeEnum\Rules\Enum; public function store(Request $request) { $this->validate($request, [ 'user_role' => ['required', new Enum(UserRole::class)], ]); }
Localized enum
The Enum has to implement the LocalizedEnum
interface:
namespace App\Enums; enum UserRole: int implements LocalizedEnum { use BaseEnum; case ADMIN = 10; case CUSTOMER = 50; }
Translation files can be placed here lang/en/enums.php
like:
use \App\Enums; return [ Enums\UserRole::class => [ Enums\UserRole::ADMIN->name => 'Administrator', Enums\UserRole::CUSTOMER->name => 'Customer', ], ];
To get a translated name of a selected enum value:
Enums\UserRole::ADMIN->name(); // Returns "Administrator"
Casts in Eloquent Models
Laravel's Eloquent ORM provides a powerful and expressive way to handle data in your database. When working with custom data types, like enums, it's often useful to define how these values should be cast when interacting with the database. This is where casting comes into play.
Using EnumCast in Models
If you want to use an enum in your Eloquent model, you can leverage the EnumCast
feature to ensure that the enum values are correctly transformed when reading from or writing to the database. This is particularly useful when dealing with attributes that have a specific set of allowed values, such as user roles, statuses, or types.
Here’s how you can apply EnumCast
in your model:
namespace App\Models; use App\Enums\UserRole; use Illuminate\Database\Eloquent\Model; class User extends Model { protected $casts = [ 'role' => UserRole::class, ]; }
In the example above, the role
attribute of the User
model is cast to the UserRole
enum. This means that whenever you access the role
attribute, Eloquent will automatically convert the raw database value into an instance of UserRole
. Similarly, when you assign a UserRole
enum instance to the role
attribute, Eloquent will handle the conversion to its underlying value when saving it to the database.
Handling Nullable Values
In some cases, an attribute might be optional and could have a null
value in the database. If you need to support null
values for an enum cast, you can do so by appending :nullable
to the cast definition:
- Define the cast with the
:nullable
modifier:
protected $casts = [ 'role' => UserRole::class . ':nullable', ];
- Ensure that the enum class implements the
Illuminate\Contracts\Database\Eloquent\Castable
contract.
namespace App\Enums; use Illuminate\Contracts\Database\Eloquent\Castable; enum UserRole: int implements Castable { use BaseEnum; case ADMIN = 10; case CUSTOMER = 50; }
IMPORTANT: The Illuminate\Contracts\Database\Eloquent\Castable
contract is required to support nullable enum values in Eloquent models. Make sure that your enum class implements this contract to avoid errors when using the :nullable
modifier.
With this setup, the role
attribute can be null
, and Eloquent will correctly handle it without throwing errors. This is useful for scenarios where an enum value may not be set initially or where it can be removed at a later time.
Casting Collections of Enums
Sometimes, you may have a model attribute that stores an array or collection of enum values. For instance, a user might have multiple roles, and these roles are stored as an array in the database. You can cast these arrays to collections of enum instances by using the :collection
modifier:
- Define the cast with the
:collection
modifier:
protected $casts = [ 'roles' => UserRole::class . ':collection', ];
- Ensure that the enum class implements the
Illuminate\Contracts\Database\Eloquent\Castable
contract.
namespace App\Enums; use Illuminate\Contracts\Database\Eloquent\Castable; enum UserRole: int implements Castable { use BaseEnum; case ADMIN = 10; case CUSTOMER = 50; }
IMPORTANT: The Illuminate\Contracts\Database\Eloquent\Castable
contract is required to support casting collections of enum values in Eloquent models. Make sure that your enum class implements this contract to avoid errors when using the :collection
modifier.
With this configuration, the roles
attribute will be cast to a collection of UserRole
enum instances. When you retrieve this attribute, Eloquent will return a collection where each item is an instance of UserRole
. Similarly, when you assign a collection or array of UserRole
instances to the roles
attribute, Eloquent will properly convert and store the underlying values in the database.
Change log
Please see CHANGELOG for more information on what has changed recently.
Testing
$ composer test
Contributing
Please see CONTRIBUTING and CODE_OF_CONDUCT for details.
Security
If you discover any security related issues, please email info@mindtwo.de instead of using the issue tracker.
Credits
License
The MIT License (MIT). Please see License File for more information.