laravel - Can't get session in controller constructor

Question 1

In new laravel I can't get session in constructor. Why?

public function __construct()
{
    dd(Session::all()); //this is empty array
}

and then below

public function index()
{
    dd(Session::all()); //here works
}

In old laravel i remember there was not this problem. something changed?

Question 2

You can't do it by default with Laravel 5.3. But when you edit you Kernel.php and change protected $middleware = []; to the following it wil work.

protected $middleware = [
    IlluminateFoundationHttpMiddlewareCheckForMaintenanceMode::class,
    IlluminateSessionMiddlewareStartSession::class,
    IlluminateViewMiddlewareShareErrorsFromSession::class,
];

protected $middlewareGroups = [
    'web' => [
        AppHttpMiddlewareEncryptCookies::class,
        IlluminateCookieMiddlewareAddQueuedCookiesToResponse::class,

        AppHttpMiddlewareVerifyCsrfToken::class,
        IlluminateRoutingMiddlewareSubstituteBindings::class,
    ],
    'api' => [
        'throttle:60,1',
        'bindings',
    ],
];

Hope this works!

Question 3

In Laravel session is initialized in a middleware that is handled by this class:

IlluminateSessionMiddlewareStartSession::class

When the service providers are booted, this middleware has not been executed, because all the middlewares execute after the service providers boot phase

So, instead of sharing the variable from a service provider, you can create a middleware and share the session variable from there, or you can use a view composer with a callback in your service provider:

public function boot()
{
    view()->composer('*', function ($view) 
    {
        //this code will be executed when the view is composed, so session will be available
        $view->with('key', Session::get('key') );    
    });  
}

This will work, as the callback will be called before the views are composed, when the middleware has already been executed, so session will be availabe

In general, pay attention at your middleware's execution order: if you want to access the session from a middleware, that should execute after Laravel's StartSession::class middleware

Question 4

You can change the session lifetime, application wide by changing the lifetime value on config/session.php:

/*
|--------------------------------------------------------------------------
| Session Lifetime
|--------------------------------------------------------------------------
|
| Here you may specify the number of minutes that you wish the session
| to be allowed to remain idle before it expires. If you want them
| to immediately expire on the browser closing, set that option.
|
*/

'lifetime' => 4320,
'expire_on_close' => false,

Now, if you want to control the session lifetime per user, you need to set this value before logging in the user.

Try if user exists in database

If yes, and he is user who needs longer session lifetime, run config(['session.lifetime' => $newLifetime]);

Log user in

Enjoy longer session lifetime for current user

— Source

You have to make the above changes in LoginController.

Question 5

If you have the subdomains hosted on different physical machines, setting the domain in app/config/session.php to this:

'domain' => '.domain.com'

will work as long as the two apps will be able to access a shared session data storage (for example using the database session driver and having a common database that stores the sessions).

Question 6

As you've added a new method into a resourceful controller, you should register the new method first, before the resource.

E.g.

<?php // Routes.php

Route::get('/admin/login', 'AdminContro[email protected]');
Route::resource('admin', 'AdminController');

This way your before filters should work as you have then like this:

<?php // AdminController.php
   class AdminController extends BaseController {
     function __construct() {
       $this->beforeFilter('admin', array('except' => array('adminLogin')));
      $this->beforeFilter('csrf', array('on' => 'post'));
    }
}

laravel - Can't get session in controller constructor

Answers

php,laravel,session,constructor