Calling Form::submit() manually

..versionadded::2.3

Before Symfony 2.3, the ``submit()`` method was known as ``bind()``.

In some cases, you want better control over when exactly your form is submitted

and what data is passed to it. Instead of using the

:method:`Symfony\\Component\\Form\\FormInterface::handleRequest`

When submitting a form via a "PATCH" request, you may want to update only a few

submitted fields. To achieve this, you may pass an optional second boolean

parameter to ``submit()``. Passing ``false`` will remove any missing fields

argument to ``submit()``. Passing ``false`` will remove any missing fields

within the form object. Otherwise, the missing fields will be set to ``null``.

..caution::

When the second parameter ``$clearMissing`` is ``false``, like with the

"PATCH" method, the validation extension will only handle the submitted

fields. If the underlying data needs to be validated, this should be done

manually, i.e using the validator.

.. _form-submit-request:

Passing a Request to Form::submit() (Deprecated)

Passing the:class:`Symfony\\Component\\HttpFoundation\\Request` directly to

:method:`Symfony\\Component\\Form\\FormInterface::submit` still works, but is

deprecated andwill be removed in Symfony 3.0. You should use the method

deprecated andhas been removed in Symfony 3.0. You should use the method

:method:`Symfony\\Component\\Form\\FormInterface::handleRequest` instead.