usuario advanced template don't allow users to view backend

[Wautvda]

What steps will reproduce the problem?

Create user, without required access right to backend pages. Use backend login.

What is the expected result?

Show error that you're not allowed to login and go back to frontend home

What do you get instead?

Backend template with menu, just none of the pages are accessible due to missing access rights.

	        'access' => [
		        'class' => AccessControl::class,
		        'rules' => [
			        [
				        'allow' => true,
				        'roles' => ['Admin'],
			        ],
		        ],
	        ],

[Wautvda]

Solution can be something like.

'user' => [
            'on ' . FormEvent::EVENT_BEFORE_LOGIN => function ($e) {
                $e->isValid = \Da\User\Model::findByUsername($e->identity->username)->isAdmin;
                if(!$e->isValid)
                {
	                $homeUrl = \Yii::$app->urlManagerFrontend->createAbsoluteUrl(['']);
                    Yii::$app->session->setFlash('error', Yii::t("login","Access forbidden! Click <a href='$homeUrl'>here</a> to return to the home page."));
                }
            },
        ],

thx to @Eseperio ;) https://github.com/dektrium/yii2-user/issues/967