How can I use variables globally in Blade templates

Question

I want use $unreadMessages in my layout but I don't know which controller is used globally for layouts. It is in dashboardController, but I get this error:

Undefined variable: unreadMessages (View: /myhost/resources/views/layouts/app.blade.php) (View: / myhost/resources/views/layouts/app.blade.php)

In which controller can I define this variable so I can use it globally?

This code is for $unreadMessages in the dashboardController:

<?php

class DashboardController extends Controller
{

    public function index()
    {
        \Artisan::call('status:check');
        $unreadMessages = TicketMessage::where(['is_read' => 0])->whereIn('ticket_id', $ticketIds)->whereNotIn('user_id', [Auth::user()->id])->count();


        return view('dashboard', compact(
            'unreadMessages'
        ));
    }
}

That should work just fine. No special controller/model/whatever needed to use variables in a layout page. Are there any unread messages? (`dd($unreadMessages);`) — brombeer, Dec 27 '18 at 13:16
tnx but where are I put _@include('app', array('unreadMessages' => $unreadMessages))_ — Amirhossein, Dec 27 '18 at 13:29
Possible duplicate of [Laravel: Where to store global arrays data and constants?](https://stackoverflow.com/questions/26854030/laravel-where-to-store-global-arrays-data-and-constants) — DarkMukke, Dec 27 '18 at 13:33
Possible duplicate of [Laravel 5 - global Blade view variable available in all templates](https://stackoverflow.com/questions/29715813/laravel-5-global-blade-view-variable-available-in-all-templates) — Codemaker2015, Dec 27 '18 at 13:44

score 1 · Answer 1 · answered Dec 27 '18 at 13:46

1

you can resolve this issue by using the following code in Route.php file:

view()->share('unreadMessages', $unreadMessages);

answered Dec 27 '18 at 13:46

Codemaker2015

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My script don't have the Route.php file – Amirhossein Dec 27 '18 at 13:51
I fund RouteServiceProvider.php, Is it your mean? – Amirhossein Dec 27 '18 at 13:56
You can locate route.php in \app\Http folder in old version laravel. New version doesn't have any file like route.php. For that their exists a folder named routers and having files named api.php, console.php and web.php. Put the code in web.php – Codemaker2015 Dec 27 '18 at 13:57
For more about routing you can refer https://laravel.com/docs/5.3/routing#basic-routing – Codemaker2015 Dec 27 '18 at 13:58

cfnerd · Answer 2 · 2018-12-27T13:57:11.880

In your dashboard.blade.php, there is likely a reference to @include('layouts/app') or something similar. If not, do a search of your code for a reference similar to that.

You'll need to pass $unreadMessages to that sub-view. You are passing it into the main blade (dashboard.blade.php), but not the included blade within dashboard (app.blade.php).

So, you will need something like:

@include('layouts/app', array('unreadMessages' => $unreadMessages))

Here are a few articles that might assist further:

lovis91 · Answer 3 · 2018-12-27T13:59:10.713

0

You can do that with a ServiceProvider, in the boot function, for example :

 public function boot() {
    ...

    view()->composer(['layouts.app'],function($view) {
        $unreadMessages = TicketMessage::where(['is_read' => 0])->whereIn('ticket_id', $ticketIds)->whereNotIn('user_id', [Auth::user()->id])->count();
        $view->with('unreadMessages',$unreadMessages)
    });
 }

edited Dec 27 '18 at 13:59

answered Dec 27 '18 at 13:35

lovis91

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In the AuthServiceProvider (App\Providers\AuthServiceProvider) – lovis91 Dec 27 '18 at 13:42
try it with view()->composer('*',function($view) {}) – lovis91 Dec 27 '18 at 13:57

How can I use variables globally in Blade templates

3 Answers3