Laravel 4 with Sentry 2 add user to a group on Registration - php

Question

So, I'm trying to implement Sentry 2 with Laravel 4.1. I'm using this resource for it
https://github.com/rydurham/L4withSentry
Everything works fine, but now I want to assign user to a group automatically when he registers.
From Sentry 2 Docs,
// Find the group using the group id
$adminGroup = Sentry::findGroupById(5);
// Assign the group to the user
$user->addGroup($adminGroup);
Should work. So I added this lines of code to
Authority\Repo\User\SentryUser.php
Now the code looks like
try {
//Attempt to register the user.
$user = $this->sentry->register(array(
'username' => e($data['username']),
'email' => e($data['email']),
'password' => e($data['password'])
));
// Find the group using the group id
$adminGroup = Sentry::findGroupById(5);
// Assign the group to the user
$user->addGroup($adminGroup);
//success!
$result['success'] = true;
$result['message'] = trans('users.created');
$result['mailData']['activationCode'] = $user->GetActivationCode();
$result['mailData']['userId'] = $user->getId();
$result['mailData']['email'] = e($data['email']);
}
But this throws in an error
Non-static method Cartalyst\Sentry\Sentry::findGroupById() should not be called statically, assuming $this from incompatible context
Can anyone shed a light and tell me what I'm doing wrong?
Thanks in Advance

Answer 1

Somehow, where you are using Sentry, you're not using its Facade, but the class itself. When you call a class through a Facade you're not really using statics, it's just looks like you are.
Do you have this:
use Cartalyst\Sentry\Sentry;
In your code?
Ok, but if this line is working for you:
$user = $this->sentry->register(array(
'username' => e($data['username']),
'email' => e($data['email']),
'password' => e($data['password'])
));
So you already have it instantiated and you can surely do:
$adminGroup = $this->sentry->findGroupById(5);