How to get environment in custom route loader in Symfony2?

Question

I've created a custom loader for my bundle with the purpose of loading different routes per environment. My loader class looks like this:

class ApiRouteLoader extends Loader
{
    public function load($resource, $type = null)
    {
        $collection = new RouteCollection();

        $resource = '@ApiBundle/Resources/config/routing.yml';
        $type = 'yaml';

        $importedRoutes = $this->import($resource, $type);

        $collection->addCollection($importedRoutes);

        return $collection;
    }

    public function supports($resource, $type = null)
    {
        return $type === 'extra';
    }
}

What I need to know is how could I get the environment name to use in the 'load' function? I seem to unable to find a way to get the kernel (which would help).

Can anyone help? Thanks!

When you say enviroment what do actually mean?

Matthew A Thomas
– Matthew A Thomas

2014-10-02 10:09:56 +00:00
Commented Oct 2, 2014 at 10:09 — Matthew A Thomas
– Matthew A Thomas, Commented Oct 2, 2014 at 10:09

Cerad · Accepted Answer · 2018-11-16 18:23:57Z

2

Injecting a parameter is a pretty basic operation. You might want to take some time to research the service container. http://symfony.com/doc/current/book/service_container.html

In any event:

// services.yml
services:
    acme_demo.routing_loader:
        class: Acme\DemoBundle\Routing\ApiRouteLoader
        arguments: ['%kernel.environment%']
        tags:
            - { name: routing.loader }

class ApiRouteLoader extends Loader
{
    protected $env;

    public function __construct($env)
    {
        $this->env = $env;
    }

Just a quick update since somebody recently up voted this. For more recent versions of Symfony relying on environmental variables, use the following to inject the current env:

Acme\DemoBundle\Routing\ApiRouteLoader:
    $env:  '%env(APP_ENV)%'

edited Nov 16, 2018 at 18:23

answered Oct 2, 2014 at 13:19

Cerad

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Comments

Wouter J · Accepted Answer · 2014-10-02 10:10:32Z

1

You can inject the kernel.environment container parameter into your custom routing loader.

Btw, why do you create a routing loader that does nothing more than loading a route file from a specific path? You can simple import that path into your routing.yml file:

api_routes:
    resource: "@ApiBundle/Resources/config/routing.yml"

answered Oct 2, 2014 at 10:10

Wouter J

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1 Comment

Andrei Dascalu Over a year ago

Hi, Wouter, thanks for the answer. Would you be so kind as to give me an example on how to inject the 'kernel.environment' into my loader? I am not adding the yml as a resource to the various routings defined on each environment as I am eventually going to apply some transformations and/or mix routes from different sources. Thanks!

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