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Fixing some bugs and minor improvements for MicroKernelTrait #10501

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Fixing some bugs and minor improvements for MicroKernelTrait #10501

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57 changes: 26 additions & 31 deletions configuration/micro_kernel_trait.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -55,13 +55,13 @@ Next, create an ``index.php`` file that defines the kernel class and executes it
{
// kernel is a service that points to this class
// optional 3rd argument is the route name
$routes->add('/random/{limit}', 'kernel:randomNumber');
$routes->add('/random/{limit}', 'Kernel::randomNumber');
}

public function randomNumber($limit)
{
return new JsonResponse(array(
'number' => rand(0, $limit)
'number' => random_int(0, $limit),
));
}
}
Expand Down Expand Up @@ -136,11 +136,6 @@ hold the kernel. Now it looks like this::
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\HttpKernel\Kernel as BaseKernel;
use Symfony\Component\Routing\RouteCollectionBuilder;
use Doctrine\Common\Annotations\AnnotationRegistry;

$loader = require __DIR__.'/../vendor/autoload.php';
// auto-load annotations
AnnotationRegistry::registerLoader(array($loader, 'loadClass'));

class Kernel extends BaseKernel
{
Expand All @@ -149,8 +144,8 @@ hold the kernel. Now it looks like this::
public function registerBundles()
{
$bundles = array(
new Symfony\Bundle\FrameworkBundle\FrameworkBundle(),
new Symfony\Bundle\TwigBundle\TwigBundle(),
new \Symfony\Bundle\FrameworkBundle\FrameworkBundle(),
new \Symfony\Bundle\TwigBundle\TwigBundle(),
);

if ($this->getEnvironment() == 'dev') {
Expand All @@ -162,7 +157,7 @@ hold the kernel. Now it looks like this::

protected function configureContainer(ContainerBuilder $c, LoaderInterface $loader)
{
$loader->load(__DIR__.'/config/framework.yaml');
$loader->load(__DIR__.'/../config/framework.yaml');

// configure WebProfilerBundle only if the bundle is enabled
if (isset($this->bundles['WebProfilerBundle'])) {
Expand Down Expand Up @@ -198,6 +193,12 @@ hold the kernel. Now it looks like this::
}
}

Before you continue, run this command to add support for the new dependencies:

.. code-block:: terminal

composer require symfony/yaml symfony/twig-bundle symfony/web-profiler-bundle doctrine/annotations

Unlike the previous kernel, this loads an external ``config/framework.yaml`` file,
because the configuration started to get bigger:

Expand All @@ -208,8 +209,6 @@ because the configuration started to get bigger:
# config/framework.yaml
framework:
secret: S0ME_SECRET
templating:
engines: ['twig']
profiler: { only_exceptions: false }

.. code-block:: xml
Expand All @@ -223,9 +222,6 @@ because the configuration started to get bigger:
http://symfony.com/schema/dic/symfony http://symfony.com/schema/dic/symfony/symfony-1.0.xsd">

<framework:config secret="S0ME_SECRET">
<framework:templating>
<framework:engine>twig</framework:engine>
</framework:templating>
<framework:profiler only-exceptions="false" />
</framework:config>
</container>
Expand All @@ -235,9 +231,6 @@ because the configuration started to get bigger:
// config/framework.php
$container->loadFromExtension('framework', array(
'secret' => 'S0ME_SECRET',
'templating' => array(
'engines' => array('twig'),
),
'profiler' => array(
'only_exceptions' => false,
),
Expand All @@ -259,21 +252,20 @@ has one file in it::
*/
public function randomNumber($limit)
{
$number = rand(0, $limit);
$number = random_int(0, $limit);

return $this->render('micro/random.html.twig', array(
'number' => $number
'number' => $number,
));
}
}

Template files should live in the ``Resources/views/`` directory of whatever directory
your *kernel* lives in. Since ``Kernel`` lives in ``src/``, this template lives
at ``src/Resources/views/micro/random.html.twig``:
Template files should live in the ``templates/`` directory at the root of your project.
This template lives at ``templates/micro/random.html.twig``:

.. code-block:: html+twig

<!-- src/Resources/views/micro/random.html.twig -->
<!-- templates/micro/random.html.twig -->
<!DOCTYPE html>
<html>
<head>
Expand All @@ -289,9 +281,13 @@ Finally, you need a front controller to boot and run the application. Create a

// public/index.php

use App\Kernel;
use Doctrine\Common\Annotations\AnnotationRegistry;
use Symfony\Component\HttpFoundation\Request;

require __DIR__.'/../src/Kernel.php';
$loader = require __DIR__.'/../vendor/autoload.php';
// auto-load annotations
AnnotationRegistry::registerLoader(array($loader, 'loadClass'));

$kernel = new Kernel('dev', true);
$request = Request::createFromGlobals();
Expand All @@ -311,13 +307,12 @@ this:
├─ public/
| └─ index.php
├─ src/
| ├─ Kernel.php
| ├─ Controller
| | └─ MicroController.php
│ └─ Resources
| └─ views
| └─ micro
| └─ random.html.twig
| └─ Kernel.php
├─ templates/
| └─ micro/
| └─ random.html.twig
├─ var/
| ├─ cache/
│ └─ log/
Expand All @@ -331,7 +326,7 @@ As before you can use PHP built-in server:
.. code-block:: terminal

cd public/
$ php -S localhost:8000
$ php -S localhost:8000 -t public/

Then see webpage in browser:

Expand Down