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How to Include External Routing Resources

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How to Include External Routing Resources

All routes are loaded via a single configuration file - usually app/config/routing.yml (see Loading Routes). However, if you use routing annotations, you’ll need to point the router to the controllers with the annotations. This can be done by “importing” directories into the routing configuration:

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    # app/config/routing.yml
app:
    resource: '@AppBundle/Controller/'
    type:     annotation # required to enable the Annotation reader for this resource
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    <!-- app/config/routing.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.com/schema/routing
        http://symfony.com/schema/routing/routing-1.0.xsd">

    <!-- the type is required to enable the annotation reader for this resource -->
    <import resource="@AppBundle/Controller/" type="annotation"/>
</routes>
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    // app/config/routing.php
use Symfony\Component\Routing\RouteCollection;

$collection = new RouteCollection();
$collection->addCollection(
    // second argument is the type, which is required to enable
    // the annotation reader for this resource
    $loader->import("@AppBundle/Controller/", "annotation")
);

return $collection;

Note

When importing resources from YAML, the key (e.g. app) is meaningless. Just be sure that it’s unique so no other lines override it.

The resource key loads the given routing resource. In this example the resource is a directory, where the @AppBundle shortcut syntax resolves to the full path of the AppBundle. When pointing to a directory, all files in that directory are parsed and put into the routing.

Note

You can also include other routing configuration files, this is often used to import the routing of third party bundles:

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    # app/config/routing.yml
app:
    resource: '@AcmeOtherBundle/Resources/config/routing.yml'
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    <!-- app/config/routing.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.com/schema/routing
        http://symfony.com/schema/routing/routing-1.0.xsd">

    <import resource="@AcmeOtherBundle/Resources/config/routing.xml" />
</routes>
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    // app/config/routing.php
use Symfony\Component\Routing\RouteCollection;

$collection = new RouteCollection();
$collection->addCollection(
    $loader->import("@AcmeOtherBundle/Resources/config/routing.php")
);

return $collection;

Prefixing Imported Routes

You can also choose to provide a “prefix” for the imported routes. For example, suppose you want to prefix all routes in the AppBundle with /site (e.g. /site/blog/{slug} instead of /blog/{slug}):

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    # app/config/routing.yml
app:
    resource: '@AppBundle/Controller/'
    type:     annotation
    prefix:   /site
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    <!-- app/config/routing.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<routes xmlns="http://symfony.com/schema/routing"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.com/schema/routing
        http://symfony.com/schema/routing/routing-1.0.xsd">

    <import
        resource="@AppBundle/Controller/"
        type="annotation"
        prefix="/site" />
</routes>
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    // app/config/routing.php
use Symfony\Component\Routing\RouteCollection;

$app = $loader->import('@AppBundle/Controller/', 'annotation');
$app->addPrefix('/site');

$collection = new RouteCollection();
$collection->addCollection($app);

return $collection;

The path of each route being loaded from the new routing resource will now be prefixed with the string /site.

Adding a Host Requirement to Imported Routes

You can set the host regex on imported routes. For more information, see Using Host Matching of Imported Routes.

This work, including the code samples, is licensed under a Creative Commons BY-SA 3.0 license.