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[FrameworkBundle] Added doc for ControllerTrait::isFormValid #10852

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[FrameworkBundle] Added doc for ControllerTrait::isFormValid #10852

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17 changes: 17 additions & 0 deletions best_practices/forms.rst
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Expand Up @@ -218,4 +218,21 @@ handling the form submit. For example, you *could* have a ``new()`` action that
submit. Both those actions will be almost identical. So it's much simpler to let
``new()`` handle everything.

.. versionadded:: 4.3

The ``AbstractController::isFormValid()`` method was added in Symfony 4.3.

It's also possible to use a short-cut if your controller extends ``AbstractController``::

public function new(Request $request)
{
// build the form ...

if ($this->isFormValid($form, $request)) {
// process the form data
}

// render the template
}

Next: :doc:`/best_practices/i18n`
19 changes: 19 additions & 0 deletions forms.rst
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Expand Up @@ -264,6 +264,25 @@ your controller::
is called. Otherwise, changes done in the ``*_SUBMIT`` events aren't applied to the
view (like validation errors).


.. versionadded:: 4.3

The ``AbstractController::isFormValid()`` method was added in Symfony 4.3.

It's also possible to use a short-cut if your controller extends ``AbstractController``::

public function new(Request $request)
{
// build the form ...

if ($this->isFormValid($form, $request)) {
// process the form data
}

// render the template
}


This controller follows a common pattern for handling forms and has three
possible paths:

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