@@ -862,13 +862,13 @@ Form Type Guessing
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~~~~~~~~~~~~~~~~~~
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If the object handled by the form includes validation constraints, Symfony can
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- introspect that metadata to guess the type of your field and set it up for you .
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- In the above example, Symfony can guess from the validation rules that both the
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+ introspect that metadata to guess the type of your field.
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+ In the above example, Symfony can guess from the validation rules that the
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``task `` field is a normal ``TextType `` field and the ``dueDate `` field is a
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``DateType `` field.
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- When building the form , omit the second argument to the ``add() `` method, or
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- pass ``null `` to it, to enable Symfony's "guessing mechanism" ::
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+ To enable Symfony's "guessing mechanism" , omit the second argument to the ``add() `` method, or
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+ pass ``null `` to it::
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// src/Form/Type/TaskType.php
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namespace App\Form\Type;
@@ -903,23 +903,21 @@ pass ``null`` to it, to enable Symfony's "guessing mechanism"::
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Form Type Options Guessing
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..........................
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- When the guessing mechanism is enabled for some field (i.e. you omit or pass
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- ``null `` as the second argument to ``add() ``), in addition to its form type,
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- the following options can be guessed too:
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+ When the guessing mechanism is enabled for some field, in addition to its form type,
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+ the following options will be guessed too:
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``required ``
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- The ``required `` option can be guessed based on the validation rules (i.e. is
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+ The ``required `` option is guessed based on the validation rules (i.e. is
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the field ``NotBlank `` or ``NotNull ``) or the Doctrine metadata (i.e. is the
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field ``nullable ``). This is very useful, as your client-side validation will
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automatically match your validation rules.
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``maxlength ``
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If the field is some sort of text field, then the ``maxlength `` option attribute
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- can be guessed from the validation constraints (if ``Length `` or ``Range `` is used)
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+ is guessed from the validation constraints (if ``Length `` or ``Range `` is used)
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or from the :doc: `Doctrine </doctrine >` metadata (via the field's length).
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- If you'd like to change one of the guessed values, override it by passing the
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- option in the options field array::
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+ If you'd like to change one of the guessed values, override it in the options field array::
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->add('task', null, ['attr' => ['maxlength' => 4]])
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