Shows an error when using the Gate facade - laravel

Question

When writing privileges and rights of a user shows error: 403
Forbidden
Controller code
class IndexController extends AdminController
{
public function __construct(){
parent::__construct();
if (Gate::denies('VIEW_ADMIN')) {
abort(403);
}
$this->template = env('THEME').'.admin.index';
}
AuthServiceProvider code
public function boot()
{
$this->registerPolicies();
Gate::define('VIEW_ADMIN', function($user){
return $user->canDo('VIEW_ADMIN');
});
//
}
Model User code
The User model is associated with the Roles model, and the Roles model is associated with the Permission model.
public function canDo($permission, $require = FALSE){
if (is_array($permission)) {
dump($permission);
}
else{
foreach ($this->roles as $role) {
foreach ($this->permissions as $permission) {
if (str_is($permission,$permission->name)) {
return true;
}
}
}
}
}

Answer 1

You rewrite input $permission on line foreach ($this->permissions as $permission) { so your if (str_is($permission,$permission->name)) is always FALSE because
str_is(array(), 'VIEW_ADMIN') === FALSE
You should do this
public function canDo($permission, $require = FALSE){
if (is_array($permission)) {
dump($permission);
}
else{
foreach ($this->roles as $role) {
foreach ($this->permissions as $permissionObject) {
if (str_is($permission,$permissionObject->name)) {
return true;
}
}
}
}
}
Also you should add return FALSE because return type is boolean in this case.