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[HttpKernel] [MapQueryString] Add docs for new key option #20475

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Dec 19, 2024
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[HttpKernel] [MapQueryString] Add docs for new key option #20475

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21 changes: 21 additions & 0 deletions controller.rst
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Expand Up @@ -443,6 +443,27 @@ HTTP status to return if the validation fails::

The default status code returned if the validation fails is 404.

If you want to map your object to a nested array in your query with a specific key,
you can use the ``key`` option in your :class:`Symfony\\Component\\HttpKernel\\Attribute\\MapQueryString`
attribute::

use App\Model\SearchDto;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Attribute\MapQueryString;

// ...

public function dashboard(
#[MapQueryString(key: 'search')] SearchDto $searchDto
): Response
{
// ...
}

.. versionadded:: 7.3

The ``key`` option of ``#[MapQueryString]`` was introduced in Symfony 7.3.

If you need a valid DTO even when the request query string is empty, set a
default value for your controller arguments::

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