View Composers

View composers are classes that are called when a view is rendered. If you have data that you want to be bound to a view each time that view is rendered, a view composer can help you organize that logic into a single location. This will keep your view files nice and clean while the view composer does all the heavy lifting.

All view composers must be registered within your theme's manifest file. For this example, we'll register a TestComposer to our theme's index view file.

"composers": {
    "index": "TestComposer"
}

This will inform the theme engine to run the TestComposer@compose method each time the index view is rendered. So now, let's define the composer class:

<?php

namespace Themes\YourTheme\Composers;

use Illuminate\View\View;

class TestComposer
{
    /**
     * Bind data to the view.
     *
     * @param  View  $view
     * @return void
     */
    public function compose(View $view)
    {
        $bar = 'bar';

        $view->with('foo', $bar);
    }
}

Just before the view is rendered, the composer's compose method is called, where you may then use the with method to bind data to the view.

Attaching A Composer to Multiple Views

You may attach a single view composer to multiple views at once by passing an array of views as the first argument in our composer theme manifest property:

"composers": {
    ["index", "profile"]: "TestComposer"
}

The composer theme manifest property also accepts the * character as a wildcard, allowing you to attach a composer to all views:

"composers": {
    ["*"]: "TestComposer"
}