laravel 5 middleware with parameters

Question

I'm an absolute beginner in Laravel 5.

I've created a middleware class called BeforeMiddleware the blueprint of that class is below.

class BeforeMiddleware {
    public function handle($request, Closure $next, $role)
    {
        if($request->user()->hasRole($role)){
            return redirect('/pensions');
        }
        return $next($request);
    }
}

registered in kernel.php as

protected $routeMiddleware = [
        'auth' => 'App\Http\Middleware\Authenticate',
        'auth.basic' => 'Illuminate\Auth\Middleware\AuthenticateWithBasicAuth',
        'guest' => 'App\Http\Middleware\RedirectIfAuthenticated',
        'role' => 'App\Http\Middleware\BeforeMiddleware',
    ];

User model is below

class User extends Model {
    public function hasRole($name)
    {
        return ($this->role->name == $name) ? true : false;
    }

    public function role()
    {
        return $this->belongsTo('App\Models\Role');
    }
}

and usage in routes.php is below.

Route:get('/reporting', [ 'middleware' => 'role:Owner', 'uses' => function(){
    return 'secret data only be viewable by the owners';
}]);

If I open that in the browser /reporting I get the following error.

ReflectionException in Container.php line 776:
Class role:Owner does not exist

HOWEVER if I hard code 'Owner' in middleware and remove the $role parameter and also removed it from routes which now looks like this.

BeforeMiddleware.php

class BeforeMiddleware {
    public function handle($request, Closure $next, $role)
    {
        if($request->user()->hasRole('Owner')){
            return redirect('/pensions');
        }
        return $next($request);
    }
}

routes.php

Route:get('/reporting', [ 'middleware' => 'role', 'uses' => function(){
        return 'secret data only be viewable by the owners';
    }]);

it works as desired...

therefore my question is how to pass that parameter when using middleware to control routes

Any Idea?

Answer 1

If you read carefully the Middleware Documentation, you will notice this line

Middleware parameters may be specified when defining the route by separating the middleware name and parameters with a :. Multiple parameters should be delimited by commas

So in your case if your middleware class is called BeforeMiddleware, the first part of middleware definition should be before then :, and after that you can define your route parameters, separated with comma, like this:

Route:get('/reporting', [ 'middleware' => 'before:Owner', 'uses' => function(){
    return 'secret data only be viewable by the owners';
}]);

Answer 2

Since you are using Laravel 5.0, I suggest to just create separate middlewares for your roles.

Kernel.php

'owner' => 'App\Http\Middleware\OwnerMiddleware',

OwnerMiddleware

public function handle($request, Closure $next)
{
    if($request->user()->hasRole('Owner')){
        return redirect('/pensions');
    }
    return $next($request);
}

Then in routes.php

Route:get('/reporting', [ 'middleware' => 'owner', 'uses' => function(){
    return 'secret data only be viewable by the owners';
}]);