I use the baked in Auth in Laravel 5.0, which is such a head-start. What I can't figure out is how to query the database with an authenticated User's ID.
E.g. "Get all the posts for User ID 1".
From the User.php model, I can see the following function:
getId();
but,
$userid = getId();
doesn't work.
How would I define or grab the userID so that I can query my database on user-based variables?
From a controller, you can use Auth::user() to get the logged in user, and Auth::user()->id to get the logged in user's id.
Also note that you can use Auth::id() as a shortcut for Auth::user()->id
Additionally, there are two other methods you could use (from the $request instance and via a function type-hint). You can read about them in the laravel docs.
For your particular question, you could define the $userid as follows: $userid = \Auth::id();
\Auth::user() or add an import statement user Auth; at the top. Also note that you can use Auth::id() as a shortcut for Auth::user()->idView class but the principle is the same.