Call to undefined method App\Models\User::hasRole() with a middleware Laravel 8 - laravel

Question

I'm trying to use a middleware to validate the roles and I'm using the example that is in Laravel documentation.
<?php
namespace App\Http\Middleware;
use Closure;
use Illuminate\Http\Request;
class EnsureUserHasRole
{
/**
* Handle an incoming request.
*
* #param \Illuminate\Http\Request $request
* #param \Closure $next
* #return mixed
*/
public function handle(Request $request, Closure $next, $role)
{
if (! $request->user()->hasRole($role)) {
// Redirect...
return back();
}
return $next($request);
}
}
But I'm getting the error of the question. This is how I have written the Route.
Route::get('/gestionarMedicos', [PersonaController::class,'mostrarMedicos'])->name('personaMostrarMedicos')->middleware('auth','firstLogin','role:administrador');
The middleware is called role and I plan to use it to only allow access the supported roles for it.
It surprises me it doesn't work because I'm using the example in Laravel documentation.
The User model code
<?php
namespace App\Models;
use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Notifications\Notifiable;
use Illuminate\Database\Eloquent\Model;
class User extends Authenticatable
{
use HasFactory, Notifiable;
/**
* The attributes that are mass assignable.
*
* #var array
*/
protected $fillable = [
'role',
'name',
'email',
'password',
'idPersona',
'estado'
];
public function Persona(){
return $this->belongsTo(Persona::class,'idPersona');
}
/**
* The attributes that should be hidden for arrays.
*
* #var array
*/
protected $hidden = [
'remember_token'
];
/**
* The attributes that should be cast to native types.
*
* #var array
*/
protected $casts = [
'email_verified_at' => 'datetime',
];
}

Answer 1

Add EnsureUserHasRole to your middleware array
Route::get('/gestionarMedicos', [PersonaController::class,'mostrarMedicos'])->name('personaMostrarMedicos')->middleware('auth','firstLogin','EnsureUserHasRole', 'role:administrador');