How to pass data to all views in Laravel 5?
This target can achieve through different method,
1. Using BaseController
The way I like to set things up, I make a BaseController
class that extends Laravel’s own Controller
, and set up various global things there. All other controllers then extend from BaseController
rather than Laravel’s Controller.
class BaseController extends Controller
{
public function __construct()
{
//its just a dummy data object.
$user = User::all();
// Sharing is caring
View::share('user', $user);
}
}
2. Using Filter
If you know for a fact that you want something set up for views on every request throughout the entire application, you can also do it via a filter that runs before the request — this is how I deal with the User object in Laravel.
App::before(function($request)
{
// Set up global user object for views
View::share('user', User::all());
});
OR
You can define your own filter
Route::filter('user-filter', function() {
View::share('user', User::all());
});
and call it through simple filter calling.
Update According to Version 5.*
3. Using Middleware
Using the View::share
with middleware
Route::group(['middleware' => 'SomeMiddleware'], function(){
// routes
});
class SomeMiddleware {
public function handle($request)
{
\View::share('user', auth()->user());
}
}
4. Using View Composer
View Composer also help to bind specific data to view in different ways. You can directly bind variable to specific view or to all views. For Example you can create your own directory to store your view composer file according to requirement. and these view composer file through Service provide interact with view.
View composer method can use different way, First example can look alike:
You could create an App\Http\ViewComposers
directory.
Service Provider
namespace App\Providers;
use Illuminate\Support\ServiceProvider;
class ViewComposerServiceProvider extends ServiceProvider {
public function boot() {
view()->composer("ViewName","App\Http\ViewComposers\TestViewComposer");
}
}
After that, add this provider to config/app.php under "providers" section.
TestViewComposer
namespace App\Http\ViewComposers;
use Illuminate\Contracts\View\View;
class TestViewComposer {
public function compose(View $view) {
$view->with('ViewComposerTestVariable', "Calling with View Composer Provider");
}
}
ViewName.blade.php
Here you are... {{$ViewComposerTestVariable}}
This method could help for only specific View. But if you want trigger ViewComposer to all views, we have to apply this single change to ServiceProvider.
namespace App\Providers;
use Illuminate\Support\ServiceProvider;
class ViewComposerServiceProvider extends ServiceProvider {
public function boot() {
view()->composer('*',"App\Http\ViewComposers\TestViewComposer");
}
}
Reference
Laravel Documentation
For Further Clarification Laracast Episode
If still something unclear from my side, let me know.
You can either create your own service provider (ViewServiceProvider
name is common) or you can use the existing AppServiceProvider
.
In your selected provider, put your code in the boot method.
public function boot() {
view()->share('data', [1, 2, 3]);
}
This will make a $data
variable accessible in all your views.
If you rather want to use the facade instead of the helper, change view()->
to View::
but don't forget to have use View;
at the top of your file.
The best way would be sharing the variable using View::share('var', $value);
Problems with composing using "*"
:
Consider following approach:
<?php
// from AppServiceProvider::boot()
$viewFactory = $this->app->make(Factory::class);
$viewFacrory->compose('*', GlobalComposer::class);
From an example blade view:
@for($i = 0; $i<1000; $i++)
@include('some_partial_view_to_display_i', ['toDisplay' => $i])
@endfor
What happens?
- The
GlobalComposer
class is instantiated 1000 times usingApp::make
. - The event
composing:some_partial_view_to_display_i
is handled 1000 times. - The
compose
function inside theGlobalComposer
class is called 1000 times.
But the partial view some_partial_view_to_display_i
has nothing to do with the variables composed by GlobalComposer
but heavily increases render time.
Best approach?
Using View::share
along a grouped middleware.
Route::group(['middleware' => 'WebMiddleware'], function(){
// Web routes
});
Route::group(['prefix' => 'api'], function (){
});
class WebMiddleware {
public function handle($request)
{
\View::share('user', auth()->user());
}
}
Update
If you are using something that is computed over the middleware pipeline you can simply listen to the proper event or put the view share middleware at the last bottom of the pipeline.
I found this to be the easiest one. Create a new provider and user the '*'
wildcard to attach it to all views. Works in 5.3 as well :-)
<?php
namespace App\Providers;
use Illuminate\Http\Request;
use Illuminate\Support\ServiceProvider;
class ViewServiceProvider extends ServiceProvider
{
/**
* Bootstrap the application services.
* @return void
*/
public function boot()
{
view()->composer('*', function ($view)
{
$user = request()->user();
$view->with('user', $user);
});
}
/**
* Register the application services.
*
* @return void
*/
public function register()
{
//
}
}