eminiarts/nova-permissions

Laravel Nova Grouped Permissions.

1.0.6 2019-09-09 05:32 UTC

README

Latest Version on Github

A Laravel Nova Tool that allows you to group your Permissions into Groups and attach it to Users. It uses Spatie's laravel-permission.

We have a Migration, Seed, Policy and Resource ready for a good Authorization Experience.

  1. Installation
  2. Permissions with Groups
  3. Customization
  4. Credits

image

Installation

You can install the package in to a Laravel app that uses Nova via composer:

composer require eminiarts/nova-permissions

Publish the Migration with the following command:

php artisan vendor:publish --provider="Eminiarts\NovaPermissions\ToolServiceProvider" --tag="migrations"

Migrate the Database:

php artisan migrate

Next up, you must register the tool with Nova. This is typically done in the tools method of the NovaServiceProvider.

// in app/Providers/NovaServiceProvider.php

// ...

public function tools()
{
    return [
        // ...
        new \Eminiarts\NovaPermissions\NovaPermissions(),
    ];
}

If you want to hide the tool from certain users, you can write your custom logic for the ability to see the tool:

// in app/Providers/NovaServiceProvider.php

// ...

public function tools()
{
    return [
        // ...
        (new \Eminiarts\NovaPermissions\NovaPermissions())->canSee(function ($request) {
            return $request->user()->isSuperAdmin();
        }),
    ];
}

Finally, add MorphToMany fields to you app/Nova/User resource:

// ...
use Laravel\Nova\Fields\MorphToMany;

public function fields(Request $request)
{
    return [
        // ...
        MorphToMany::make('Roles', 'roles', \Eminiarts\NovaPermissions\Nova\Role::class),
        MorphToMany::make('Permissions', 'permissions', \Eminiarts\NovaPermissions\Nova\Permission::class),
    ];
}

Add the Spatie\Permission\Traits\HasRoles trait to your User model(s):

use Illuminate\Foundation\Auth\User as Authenticatable;
use Spatie\Permission\Traits\HasRoles;

class User extends Authenticatable
{
    use HasRoles;

    // ...
}

A new menu item called Permissions & Roles will appear in your Nova app after installing this package.

Permissions with Groups

Detail View

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Edit View

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Database Seeding

Publish our Seeder with the following command:

php artisan vendor:publish --provider="Eminiarts\NovaPermissions\ToolServiceProvider" --tag="seeds"

This is just an example on how you could seed your Database with Roles and Permissions. Modify RolesAndPermissionsSeeder.php in database/seeds. List all your Models you want to have Permissions for in the $collection Array and change the email for the Super-Admin:

<?php

use Illuminate\Database\Seeder;
use Spatie\Permission\Models\Role;
use Spatie\Permission\Models\Permission;

class RolesAndPermissionsSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        // Reset cached roles and permissions
        app()[\Spatie\Permission\PermissionRegistrar::class]->forgetCachedPermissions();

        $collection = collect([
            'invoices',
            'clients',
            'contacts',
            'payments',
            'teams',
            'users',
            'roles',
            // ... your own models/permission you want to crate
        ]);

        $collection->each(function ($item, $key) {
            // create permissions for each collection item
            Permission::create(['group' => $item, 'name' => 'view ' . $item]);
            Permission::create(['group' => $item, 'name' => 'view own ' . $item]);
            Permission::create(['group' => $item, 'name' => 'manage ' . $item]);
            Permission::create(['group' => $item, 'name' => 'manage own ' . $item]);
            Permission::create(['group' => $item, 'name' => 'restore ' . $item]);
            Permission::create(['group' => $item, 'name' => 'forceDelete ' . $item]);
        });

        // Create a Super-Admin Role and assign all permissions to it
        $role = Role::create(['name' => 'super-admin']);
        $role->givePermissionTo(Permission::all());

        // Give User Super-Admin Role
        $user = App\User::whereEmail('your@email.com')->first(); // enter your email here 
        $user->assignRole('super-admin');
    }
}

Now you can seed the Database. Add $this->call(RolesAndPermissionsSeeder::class); to the DatabaseSeeder.

Note: If this doesn't work, run composer dumpautoload to autoload the Seeder.

Create a Model Policy

You can extend Eminiarts\NovaPermissions\Policies\Policy and have a very clean Model Policy that works with Nova.

For Example: Create a new Contact Policy with php artisan make:policy ContactPolicy with the following code:

<?php
namespace App\Policies;

use Eminiarts\NovaPermissions\Policies\Policy;

class ContactPolicy extends Policy
{
    /**
     * The Permission key the Policy corresponds to.
     *
     * @var string
     */
    public static $key = 'contacts';
}

It should now work as exptected. Just create a Role, modify its Permissions and the Policy should take care of the rest.

Note: Don't forget to add your Policy to your $policies in App\Providers\AuthServiceProvider.

Note: Only extend the Policy if you have created your Permissions according to our Seeding Example. Otherwise, make sure to have view contacts, view own contacts, manage contacts, manage own contacts, restore contacts, forceDelete contacts as Permissions in your Table in order to extend our Policy.

view own contacts is superior to view contacts and allows the User to only view his own Contacts.

manage own contacts is superior to manage contacts and allows the User to only manage his own Contacts.

Super Admin

A Super Admin can do everything. If you extend our Policy, make sure to add a isSuperAdmin() Function to your App\User Model:

<?php
namespace App;

class User {
    /**
     * Determines if the User is a Super admin
     * @return null
    */
    public function isSuperAdmin()
    {
        return $this->hasRole('super-admin');
    }
}

You can modify this function as you please.

Scope Resource for User

If you use our Policy and Seeder, the user will still be able to see other Entries. In order to only allow a User to view his own Entries and no others, you can extens our Eminiarts\NovaPermissions\Nova\ResourceForUser Class like this:

<?php
namespace App\Nova;

use Eminiarts\NovaPermissions\Nova\ResourceForUser;

class Contact extends ResourceForUser 
{
    //...
}

Note: ResourceForUser assumes the Resource has a user_id column in the Database. If you are using another column, feel free to copy the contents of the Resource and modify it.

Customization

Use your own Resources

If you want to use your own resource classes, you can define them when you register the tool:

// in app/Providers/NovaServiceProvider.php

// ...

use App\Nova\Role;
use App\Nova\Permission;

public function tools()
{
    return [
        // ...
        \Eminiarts\NovaPermissions\NovaPermissionTool::make()
            ->roleResource(Role::class)
            ->permissionResource(Permission::class),
    ];
}

Credits

This Package is inspired by vyuldashev/nova-permission and silvanite/novatoolpermissions. I wanted to have a combination of both. Thanks to both authors. Also, a huge thanks goes to Spatie spatie/laravel-permission for their amazing work!