Laravel 5.1 Eloquent insert into another table on register

I'm trying to modify my register (the Laravel 5.1 build-in register) so I can insert a record into another table.

My register:

<?php

namespace Cussion\Http\Controllers\Auth;

use Cussion\User;
use Request;
use Validator;
use Cussion\Http\Controllers\Controller;
use Illuminate\Foundation\Auth\ThrottlesLogins;
use Illuminate\Foundation\Auth\AuthenticatesAndRegistersUsers;

class AuthController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Registration & Login Controller
    |--------------------------------------------------------------------------
    |
    | This controller handles the registration of new users, as well as the
    | authentication of existing users. By default, this controller uses
    | a simple trait to add these behaviors. Why don't you explore it?
    |
    */

    use AuthenticatesAndRegistersUsers, ThrottlesLogins;

    private $redirectTo = '/dashboard';
    private $maxLoginAttempts = 3;

    /**
     * Create a new authentication controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('guest', ['except' => 'getLogout']);
    }

    /**
     * Get a validator for an incoming registration request.
     *
     * @param  array  $data
     * @return \Illuminate\Contracts\Validation\Validator
     */
    protected function validator(array $data)
    {
        return Validator::make($data, [
            'firstname' => 'required|max:255',
            'lastname' => 'required|max:255',
            'email' => 'required|email|max:255|unique:users',
            'password' => 'required|min:4',
            'password2' => 'required|same:password',
        ]);
    }

    /**
     * Create a new user instance after a valid registration.
     *
     * @param  array  $data
     * @return User
     */
    protected function create(array $data)
    {
        if (User::where('slug', '=', strtolower($data['firstname']).'.'.strtolower($data['lastname']))->exists()) {

            return User::create([
                'firstname' => strtolower($data['firstname']),
                'lastname' => strtolower($data['lastname']),
                'slug' => strtolower($data['firstname']).'.'.strtolower($data['lastname']).'.'.time(),
                'email' => strtolower($data['email']),
                'password' => bcrypt($data['password']),
                'ip_reg' => Request::ip(),
            ]);

        }else{

            return User::create([
                'firstname' => strtolower($data['firstname']),
                'lastname' => strtolower($data['lastname']),
                'slug' => strtolower($data['firstname']).'.'.strtolower($data['lastname']),
                'email' => strtolower($data['email']),
                'password' => bcrypt($data['password']),
                'ip_reg' => Request::ip(),
            ]);
        }
    }

}

So here I check if a user slug exist and if so, it needs to add the time(); I acctually want to have added 1 if it is the first and 2 if second and so on. Just like you have on facebook, so maybe if someone can fix that too, would be great.

I want to insert a new record in users_images with the user_id of the just registered user.

This is what that table has of values:

id, user_id, image, created_at, updated_at

I acctually just want to have the user_id and timestamps filled in, since the rest will go automatic.

How can I do this using Laravel 5.1?

via Chebli Mohamed