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[Config] Added caution notice about nested bundle configs #15300

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Apr 30, 2021
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[Config] Added caution notice about nested bundle configs #15300

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8 changes: 7 additions & 1 deletion configuration.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -876,7 +876,7 @@ whenever a service/controller defines a ``$projectDir`` argument, use this:
// pass this value to any $projectDir argument for any service
// that's created in this file (including controller arguments)
->bind('$projectDir', '%kernel.project_dir%');

// ...
};

Expand Down Expand Up @@ -953,6 +953,12 @@ namespace ``Symfony\Config``::
$security->accessControl(['path' => '^/admin', 'roles' => 'ROLE_ADMIN']);
};

.. caution::

Note that only "root" classes in the namespace ``Symfony\Config`` are ConfigBuilders.
Nested configs (e.g. ``\Symfony\Config\Framework\CacheConfig``) are the Plain Old PHP
Objects and cannot be autowired when you specify it as an argument type.

Keep Going!
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