bican/roles

Powerful package for handling roles and permissions in Laravel 5.

Roles And Permissions For Laravel 5

Powerful package for handling roles and permissions in Laravel 5 (5.1 and also 5.0)., _(*1)

• Installation
  • Composer
  • Service Provider
  • Config File And Migrations
  • HasRoleAndPermission Trait And Contract
• Usage
  • Creating Roles
  • Attaching And Detaching Roles
  • Checking For Roles
  • Levels
  • Creating Permissions
  • Attaching And Detaching Permissions
  • Checking For Permissions
  • Permissions Inheriting
  • Entity Check
  • Blade Extensions
  • Middleware
• Config File
• More Information
• License

Installation

This package is very easy to set up. There are only couple of steps., _(*2)

Composer

Pull this package in through Composer (file composer.json)., _(*3)

{
    "require": {
        "php": ">=5.5.9",
        "laravel/framework": "5.1.*",
        "bican/roles": "2.1.*"
    }
}

If you are still using Laravel 5.0, you must pull in version 1.7.*., _(*4)

Run this command inside your terminal., _(*5)

composer update

Service Provider

Add the package to your application service providers in config/app.php file., _(*6)

'providers' => [

    /*
     * Laravel Framework Service Providers...
     */
    Illuminate\Foundation\Providers\ArtisanServiceProvider::class,
    Illuminate\Auth\AuthServiceProvider::class,
    ...

    /**
     * Third Party Service Providers...
     */
    Bican\Roles\RolesServiceProvider::class,

],

Config File And Migrations

Publish the package config file and migrations to your application. Run these commands inside your terminal., _(*7)

php artisan vendor:publish --provider="Bican\Roles\RolesServiceProvider" --tag=config
php artisan vendor:publish --provider="Bican\Roles\RolesServiceProvider" --tag=migrations

And also run migrations., _(*8)

php artisan migrate

This uses the default users table which is in Laravel. You should already have the migration file for the users table available and migrated., _(*9)

HasRoleAndPermission Trait And Contract

Include HasRoleAndPermission trait and also implement HasRoleAndPermission contract inside your User model., _(*10)

use Bican\Roles\Traits\HasRoleAndPermission;
use Bican\Roles\Contracts\HasRoleAndPermission as HasRoleAndPermissionContract;

class User extends Model implements AuthenticatableContract, CanResetPasswordContract, HasRoleAndPermissionContract
{
    use Authenticatable, CanResetPassword, HasRoleAndPermission;

And that's it!, _(*11)

Usage

Creating Roles

use Bican\Roles\Models\Role;

$adminRole = Role::create([
    'name' => 'Admin',
    'slug' => 'admin',
    'description' => '', // optional
    'level' => 1, // optional, set to 1 by default
]);

$moderatorRole = Role::create([
    'name' => 'Forum Moderator',
    'slug' => 'forum.moderator',
]);

Because of Slugable trait, if you make a mistake and for example leave a space in slug parameter, it'll be replaced with a dot automatically, because of str_slug function., _(*12)

Attaching And Detaching Roles

It's really simple. You fetch a user from database and call attachRole method. There is BelongsToMany relationship between User and Role model., _(*13)

use App\User;

$user = User::find($id);

$user->attachRole($adminRole); // you can pass whole object, or just an id

$user->detachRole($adminRole); // in case you want to detach role
$user->detachAllRoles(); // in case you want to detach all roles

Checking For Roles

You can now check if the user has required role., _(*14)

if ($user->is('admin')) { // you can pass an id or slug
    // or alternatively $user->hasRole('admin')
}

You can also do this:, _(*15)

if ($user->isAdmin()) {
    //
}

And of course, there is a way to check for multiple roles:, _(*16)

if ($user->is('admin|moderator')) { 
    /*
    | Or alternatively:
    | $user->is('admin, moderator'), $user->is(['admin', 'moderator']),
    | $user->isOne('admin|moderator'), $user->isOne('admin, moderator'), $user->isOne(['admin', 'moderator'])
    */

    // if user has at least one role
}

if ($user->is('admin|moderator', true)) {
    /*
    | Or alternatively:
    | $user->is('admin, moderator', true), $user->is(['admin', 'moderator'], true),
    | $user->isAll('admin|moderator'), $user->isAll('admin, moderator'), $user->isAll(['admin', 'moderator'])
    */

    // if user has all roles
}

Levels

When you are creating roles, there is optional parameter level. It is set to 1 by default, but you can overwrite it and then you can do something like this:, _(*17)

if ($user->level() > 4) {
    //
}

If user has multiple roles, method level returns the highest one., _(*18)

Level has also big effect on inheriting permissions. About it later., _(*19)

Creating Permissions

It's very simple thanks to Permission model., _(*20)

use Bican\Roles\Models\Permission;

$createUsersPermission = Permission::create([
    'name' => 'Create users',
    'slug' => 'create.users',
    'description' => '', // optional
]);

$deleteUsersPermission = Permission::create([
    'name' => 'Delete users',
    'slug' => 'delete.users',
]);

Attaching And Detaching Permissions

You can attach permissions to a role or directly to a specific user (and of course detach them as well)., _(*21)

use App\User;
use Bican\Roles\Models\Role;

$role = Role::find($roleId);
$role->attachPermission($createUsersPermission); // permission attached to a role

$user = User::find($userId);
$user->attachPermission($deleteUsersPermission); // permission attached to a user

$role->detachPermission($createUsersPermission); // in case you want to detach permission
$role->detachAllPermissions(); // in case you want to detach all permissions

$user->detachPermission($deleteUsersPermission);
$user->detachAllPermissions();

Checking For Permissions

if ($user->can('create.users') { // you can pass an id or slug
    //
}

if ($user->canDeleteUsers()) {
    //
}

You can check for multiple permissions the same way as roles. You can make use of additional methods like canOne, canAll or hasPermission., _(*22)

Permissions Inheriting

Role with higher level is inheriting permission from roles with lower level., _(*23)

There is an example of this magic:, _(*24)

You have three roles: user, moderator and admin. User has a permission to read articles, moderator can manage comments and admin can create articles. User has a level 1, moderator level 2 and admin level 3. It means, moderator and administrator has also permission to read articles, but administrator can manage comments as well., _(*25)

If you don't want permissions inheriting feature in you application, simply ignore level parameter when you're creating roles., _(*26)

Entity Check

Let's say you have an article and you want to edit it. This article belongs to a user (there is a column user_id in articles table)., _(*27)

use App\Article;
use Bican\Roles\Models\Permission;

$editArticlesPermission = Permission::create([
    'name' => 'Edit articles',
    'slug' => 'edit.articles',
    'model' => 'App\Article',
]);

$user->attachPermission($editArticlesPermission);

$article = Article::find(1);

if ($user->allowed('edit.articles', $article)) { // $user->allowedEditArticles($article)
    //
}

This condition checks if the current user is the owner of article. If not, it will be looking inside user permissions for a row we created before., _(*28)

if ($user->allowed('edit.articles', $article, false)) { // now owner check is disabled
    //
}

Blade Extensions

There are four Blade extensions. Basically, it is replacement for classic if statements., _(*29)

@role('admin') // @if(Auth::check() && Auth::user()->is('admin'))
    // user is admin
@endrole

@permission('edit.articles') // @if(Auth::check() && Auth::user()->can('edit.articles'))
    // user can edit articles
@endpermission

@level(2) // @if(Auth::check() && Auth::user()->level() >= 2)
    // user has level 2 or higher
@endlevel

@allowed('edit', $article) // @if(Auth::check() && Auth::user()->allowed('edit', $article))
    // show edit button
@endallowed

@role('admin|moderator', 'all') // @if(Auth::check() && Auth::user()->is('admin|moderator', 'all'))
    // user is admin and also moderator
@else
    // something else
@endrole

Middleware

This package comes with VerifyRole, VerifyPermission and VerifyLevel middleware. You must add them inside your app/Http/Kernel.php file., _(*30)

/**
 * The application's route middleware.
 *
 * @var array
 */
protected $routeMiddleware = [
    'auth' => \App\Http\Middleware\Authenticate::class,
    'auth.basic' => \Illuminate\Auth\Middleware\AuthenticateWithBasicAuth::class,
    'guest' => \App\Http\Middleware\RedirectIfAuthenticated::class,
    'role' => \Bican\Roles\Middleware\VerifyRole::class,
    'permission' => \Bican\Roles\Middleware\VerifyPermission::class,
    'level' => \Bican\Roles\Middleware\VerifyLevel::class,
];

Now you can easily protect your routes., _(*31)

$router->get('/example', [
    'as' => 'example',
    'middleware' => 'role:admin',
    'uses' => 'ExampleController@index',
]);

$router->post('/example', [
    'as' => 'example',
    'middleware' => 'permission:edit.articles',
    'uses' => 'ExampleController@index',
]);

$router->get('/example', [
    'as' => 'example',
    'middleware' => 'level:2', // level >= 2
    'uses' => 'ExampleController@index',
]);

It throws \Bican\Roles\Exceptions\RoleDeniedException, \Bican\Roles\Exceptions\PermissionDeniedException or \Bican\Roles\Exceptions\LevelDeniedException exceptions if it goes wrong., _(*32)

You can catch these exceptions inside app/Exceptions/Handler.php file and do whatever you want., _(*33)

/**
 * Render an exception into an HTTP response.
 *
 * @param  \Illuminate\Http\Request  $request
 * @param  \Exception  $e
 * @return \Illuminate\Http\Response
 */
public function render($request, Exception $e)
{
    if ($e instanceof \Bican\Roles\Exceptions\RoleDeniedException) {
        // you can for example flash message, redirect...
        return redirect()->back();
    }

    return parent::render($request, $e);
}

Config File

You can change connection for models, slug separator, models path and there is also a handy pretend feature. Have a look at config file for more information., _(*34)

More Information

For more information, please have a look at HasRoleAndPermission contract., _(*35)

License

This package is free software distributed under the terms of the MIT license., _(*36)