Posted: 23-09-2017

Laravel 5.5 new blade directives recap

The recent Laravel 5.5 release comes with some usefull blade helper and directives.

@includeFirst Blade directive (from laravel 5.5.5)

Now  the  following code:

@if(view()->exists('custom-template'))
    @include('custom-template')
@else
    @include('default-template')
@endif

Can be replaced by a single line of code:

@includeFirst(['custom-template', 'default-template'])

 

Blade::if()

Now  Laravel 5.5, you'll find a new syntax for defining custom if Blade directives.

The syntax might something like this in your AppServiceProvider::boot() method:

\Blade::if('is_subscribed', function () {
   return auth()->check() && auth()->user()->isSubscribed();
}); 

and in Blade

@is_subscribed
   User is Subscribed.
@else
   User is not Subscribed.
@endis_subscribed

Blade::If() Directive can also has Parameter

Blade::if ('environment', function ($environment)
{
  return app()->environment($environment);
});

and in blade template

@environment('production')
  your  code goes here......
@endenvironment

An indepth tutorial about this new featurs can be found at Laracast video Custom Blade "If" Directives.

@auth and @guest Directives

These new shortcuts permit  to quickly determine if the current user is authenticated or is a guest: 

@guest
  guest stuff here
@else
  logged user stuff here
@endauth

or

@auth
   logged user stuff here
@endauth

or if you're using a Guard

@auth('admin')
    logged in through admin guard
@endauth

Rendering JSON @json

Sometimes you may pass an array to your view with the intention of rendering it as JSON in order to initialize a JavaScript variable. For example:

<script>
    var app = json-decode($array) ;
script>

can be replaced by:

<script>
    var app = @json($array);
script>

Learning More About Laravel new Blade directives @ What's New in Laravel 5.5: New Blade Directives