Session of logged user return undefined - laravel

Question

I have custom login function in Laravel 5.4 which seems to work but not exactly. What I have in UserController.php is
public function loginSubmit()
{
$user = User::where('username', Input::get('username'))->first();
if (!$user) {
$validator->messages()->add('username', 'Invalid login or password.');
return Redirect::to('/users/login')->withErrors($validator->errors())->withInput(Input::except(['captcha']));
}
if (!Hash::check(Input::get('password'), $user->password)) {
$validator->messages()->add('username', 'Invalid login or password.');
return Redirect::to('/users/login')->withErrors($validator->errors())->withInput(Input::except(['captcha']));
}
$user->last_login = \Carbon\Carbon::now();
$user->save();
Session::put('user', ['user_id' => $user->user_id]);
//dd(Session::get('user', null));
return Redirect::to('/');
}
dd(Session::get('user', null)); return
array:1 [▼
"user_id" => 1
]
Which means that user with ID=1 is logged and is in stored in session. In BaseController.php which sharing the user session I have this
public static function isLoggedIn()
{
$user = Session::get('user', null);
if ($user !== null) {
return true;
} else {
return false;
}
}
But when I tried to show the username of the logged in user
{{ $user->username }}
I've got error
Undefined variable: user
This my Users model
namespace App;
use Illuminate\Database\Eloquent\Model;
use Eloquent;
use DB;
use Illuminate\Auth\Authenticatable;
use Illuminate\Auth\Passwords\CanResetPassword;
use Illuminate\Contracts\Auth\Authenticatable as AuthenticatableContract;
use Illuminate\Contracts\Auth\CanResetPassword as CanResetPasswordContract;
class User extends Eloquent implements AuthenticatableContract, CanResetPasswordContract
{
use Authenticatable, CanResetPassword;
/**
* The database table used by the model.
*
* #var string
*/
protected $table = 'users';
/**
* The attributes excluded from the model's JSON form.
*
* #var array
*/
protected $hidden = array('password');
protected $primaryKey = 'user_id';
}
Any idea what is wrong with my session here?

Answer 1

It means that $user is not defined in the blade file you are using.
Call the view with the user as a parameter (i think this is the best approach):
$user = Session::get('user', null);
return view('yourview')->with(['user' => $user];
Or use the Session in your blade file:
{{ Session::get('user', null)->username }}
EDIT: to use View::share. You can put this inside the boot function of your Service provider:
class AppServiceProvider extends ServiceProvider
{
/**
* Bootstrap any application services.
*
* #return void
*/
public function boot()
{
$user = Session::get('user', null);
View::share('user', $user);
}
//...
}