marievych/roles

Powerful package for handling roles and permissions in Laravel 5.5

5.4 2017-06-08 10:43 UTC

README

Powerful package for handling roles and permissions in Laravel 5.4

Installation

This package is very easy to set up. There are only couple of steps.

Composer

Pull this package in through Composer

composer require marievych/roles

Service Provider

Add the package to your application service providers in config/app.php file.

'providers' => [
    
    ...
    
    /**
     * Third Party Service Providers...
     */
    Marievych\Roles\RolesServiceProvider::class,

],

Config File And Migrations

Publish the package config file and migrations to your application. Run these commands inside your terminal.

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

And also run migrations.

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.

HasRoleAndPermission Trait And Contract

Include HasRoleAndPermission trait and also implement HasRoleAndPermission contract inside your User model.

Usage

Creating Roles

use Marievych\Roles\Models\Role;

$adminRole = Role::create([
    'name' => 'Admin',
    'slug' => 'admin',
    'description' => '', // optional,
]);

$moderatorRole = Role::create([
    'name' => 'Forum Moderator',
    'slug' => 'forum.moderator',
    'parent_id'=>1, //optional
]);

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.

Attaching, Detaching and Syncing Roles

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

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
$user->syncRoles($roles); // you can pass Eloquent collection, or just an array of ids

Checking For Roles

You can now check if the user has required role.

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

You can also do this:

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

And of course, there is a way to check for multiple roles:

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

    // The user has at least one of the roles
}

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

    // The user has all roles
}

Inheritance

If you don't want the inheritance feature in you application, simply ignore the parent_id parameter when you're creating roles.

Roles that are assigned a parent_id of another role are automatically inherited when a user is assigned or inherits the parent role.

Here is an example:

You have 5 administrative groups. Admins, Store Admins, Store Inventory Managers, Blog Admins, and Blog Writers.

Role Parent
Admins
Store Admins Admins
Store Inventory Managers Store Admins
Blog Admins Admins
Blog Writers Blog Admins

The Admins Role is the parent of both Store Admins Role as well as Blog Admins Role.

While the Store Admins Role is the parent to Store Inventory Managers Role.

And the Blog Admins Role is the parent to Blog Writers.

This enables the Admins Role to inherit both Store Inventory Managers Role and Blog Writers Role.

But the Store Admins Role only inherits the Store Inventory Managers Role,

And the Blog Admins Role only inherits the Blog Writers Role.

Another Example:

id slug parent_id
1 admin NULL
2 admin.user 1
3 admin.blog 1
4 blog.writer 3
5 development NULL

Here, admin inherits admin.user, admin.blog, and blog.writer.

While admin.user doesn't inherit anything, and admin.blog inherits blog.writer.

Nothing inherits development and, development doesn't inherit anything.

Creating Permissions

It's very simple thanks to Permission model.

use Marievych\Roles\Models\Permission;

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

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

Attaching, Detaching and Syncing Permissions

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

use App\User;
use Marievych\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
$role->syncPermissions($permissions); // you can pass Eloquent collection, or just an array of ids

$user->detachPermission($deleteUsersPermission);
$user->detachAllPermissions();
$user->syncPermissions($permissions); // you can pass Eloquent collection, or just an array of ids

Checking For Permissions

if ($user->hasPermission('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 hasOnePermission or hasAllPermissions.

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).

use App\Article;
use Marievych\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.

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.

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

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

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

@role('admin|moderator', true) // @if(Auth::check() && Auth::user()->hasRole('admin|moderator', true))
    // user has admin and moderator role
@else
    // something else
@endrole

Middleware

This package comes with VerifyRoleand VerifyPermission middleware. You must add them inside your app/Http/Kernel.php file.

/**
 * 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' => \Marievych\Roles\Middleware\VerifyRole::class,
    'permission' => \Marievych\Roles\Middleware\VerifyPermission::class,
];

Now you can easily protect your routes.

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

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

It throws \Marievych\Roles\Exceptions\RoleDeniedException, \Marievych\Roles\Exceptions\PermissionDeniedException exceptions if it goes wrong.

You can catch these exceptions inside app/Exceptions/Handler.php file and do whatever you want.

/**
 * 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 \Marievych\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.

More Information

For more information, please have a look at HasRoleAndPermission contract.

License

This package is free software distributed under the terms of the MIT license.