Send data to sidebar.blade.php only

Question

I need to build a menu using the registered categories. How can I do this without using a view?

I have my layout.blade.php with a @include('sidebar')
My consultation works on view categorias.blade.php, I just need to receive the data of the query in my sidebar.blade.php

Categoriacontroller:

public function listar() {
    $categorias = Categoria::where('categoria_id', '0')->with('todasCategorias')->get();
    return view('categorias', compact('categorias'));
}

I made the direct consultation on sidebar.blade.php.
It worked, but I think this is not the right way, someone knows another way?

$categorias = App\Categoria::where('categoria_id', '0')->with('todasCategorias')->get()

Answer 1

See the code below.

On the line of return use with, to say that you will load the page with the list of categories. You do withCategorias. Categories is the name you will use on foreach in Blade. And the variable inside is the variable that makes the query, $categorias.

public function listar() {
    $categorias = Categoria::where('categoria_id', '0')->get();
    return view('categorias')->withCategorias($categorias);
}

Then in the Blade you do:

@foreach($categorias as $item)
   $item->nome_do_campo
@endforeach

---

You can use the function __construct()

public function __construct(){
   $categorias = Categoria::where('categoria_id', '0')->get();
   view()->share('categorias', $categorias);
}

Then apply the same concept above the foreach in sidebar.blade.php.

Answer 2

I decided using the Service Injection of Laravel 5.1.

In my sidebar.blade.php added:

@inject('categorias', 'App\Categoria')

@foreach($categorias->listar() as $categoria)
    <li>{{ $categoria->nome }}</li>
@endforeach

Documentation: http://laravel.com/docs/5.1/blade#service-Injection