Issue using View()->Composer() in AppServiceProvider

I am trying to pass data to a view using the boot method in the AppServiceProvider, and have followed the steps outlined in one of the Laracast fundamentals videos. However, I am getting an error in my controller when trying to use this variable.

In my AppServiceProvider:

    public function boot()
{
    view()->composer('home', function($view){
        $view->with('current', Post::orderBy('created_at', 'desc')->first());
    });
}

So this should pass the data to my home view as far as I understand, so that I don't need to keep referencing it in all the methods I have in the controller for that view. I then have a homeController with the following method:

    public function index()
{
    //Get user
    $user = Auth::user();

    //OMDB API setup - Get Movie name, remove spaces, add into API request
    $movie_one = str_replace(" ", "+", $current->movie_one);


    $movie_two = str_replace(" ", "+", $current->movie_two);

    return view('home', compact(array('user')));

}

Previously I was adding a variable called 'current' in this method to get an entry from my Post table, but wanted to add it to the AppServiceProvider as I will have to redeclare it in other methods as well. The issue I have is that I try to use the '$current' object again in this method, but it isn't available to it? I get the following error:

ErrorException in homeController.php line 30: Undefined variable: current

What can I do here? Can I pass that data from to a controller as well as the home view? Or is that not possible?

Any advice would be appreciated!

Thanks

via Chebli Mohamed