EnumType Field ¶

class ¶

type: string default: (it has no default)

The fully-qualified class name (FQCN) of the PHP enum used to get the values displayed by this form field.

error_bubbling ¶

type: boolean default: false unless the form is compound

If true, any errors for this field will be passed to the parent field or form. For example, if set to true on a normal field, any errors for that field will be attached to the main form, not to the specific field.

error_mapping ¶

type: array default: []

This option allows you to modify the target of a validation error.

Imagine you have a custom method named matchingCityAndZipCode() that validates whether the city and zip code match. Unfortunately, there is no matchingCityAndZipCode field in your form, so all that Symfony can do is display the error on top of the form.

With customized error mapping, you can do better: map the error to the city field so that it displays above it:

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public function configureOptions(OptionsResolver $resolver)
{
    $resolver->setDefaults([
        'error_mapping' => [
            'matchingCityAndZipCode' => 'city',
        ],
    ]);
}

Here are the rules for the left and the right side of the mapping:

• The left side contains property paths;
  左側にはプロパティ パスが含まれています。
• If the violation is generated on a property or method of a class, its path is the propertyName;
  違反がクラスのプロパティまたはメソッドで生成された場合、そのパスは propertyName です。
• If the violation is generated on an entry of an array or ArrayAccess object, the property path is [indexName];
  違反が配列または ArrayAccess オブジェクトのエントリで生成された場合、プロパティ パスは [indexName] です。
• You can construct nested property paths by concatenating them, separating properties by dots. For example: addresses[work].matchingCityAndZipCode;
  プロパティをドットで区切って連結することにより、ネストされたプロパティ パスを作成できます。例: address[work].matchingCityAndZipCode;
• The right side contains the names of fields in the form.
  右側には、フォーム内のフィールドの名前が含まれています。

By default, errors for any property that is not mapped will bubble up to the parent form. You can use the dot (.) on the left side to map errors of all unmapped properties to a particular field. For instance, to map all these errors to the city field, use:

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$resolver->setDefaults([
    'error_mapping' => [
        '.' => 'city',
    ],
]);

expanded ¶

type: boolean default: false

If set to true, radio buttons or checkboxes will be rendered (depending on the multiple value). If false, a select element will be rendered.

multiple ¶

type: boolean default: false

If true, the user will be able to select multiple options (as opposed to choosing just one option). Depending on the value of the expanded option, this will render either a select tag or checkboxes if true and a select tag or radio buttons if false. The returned value will be an array.

placeholder ¶

type: string or boolean

This option determines whether or not a special "empty" option (e.g. "Choose an option") will appear at the top of a select widget. This option only applies if the multiple option is set to false.

• Add an empty value with "Choose an option" as the text:

  「オプションを選択してください」という空の値をテキストとして追加します。

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  use Symfony\Component\Form\Extension\Core\Type\ChoiceType; // ... $builder->add('states', ChoiceType::class, [ 'placeholder' => 'Choose an option', ]);

• Guarantee that no "empty" value option is displayed:

  「空の」値オプションが表示されないことを保証します。

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  use Symfony\Component\Form\Extension\Core\Type\ChoiceType; // ... $builder->add('states', ChoiceType::class, [ 'placeholder' => false, ]);

If you leave the placeholder option unset, then a blank (with no text) option will automatically be added if and only if the required option is false:

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use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
// ...

// a blank (with no text) option will be added
$builder->add('states', ChoiceType::class, [
    'required' => false,
]);

preferred_choices ¶

type: array, callable, string or PropertyPath default: []

This option allows you to display certain choices at the top of your list with a visual separator between them and the complete list of options. If you have a form of languages, you can list the most popular on top, like Bork and Pirate:

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use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
// ...

$builder->add('language', ChoiceType::class, [
    'choices' => [
        'English' => 'en',
        'Spanish' => 'es',
        'Bork' => 'muppets',
        'Pirate' => 'arr',
    ],
    'preferred_choices' => ['muppets', 'arr'],
]);

This options can also be a callback function to give you more flexibility. This might be especially useful if your values are objects:

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use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
// ...

$builder->add('publishAt', ChoiceType::class, [
    'choices' => [
        'now' => new \DateTime('now'),
        'tomorrow' => new \DateTime('+1 day'),
        '1 week' => new \DateTime('+1 week'),
        '1 month' => new \DateTime('+1 month'),
    ],
    'preferred_choices' => function ($choice, $key, $value) {
        // prefer options within 3 days
        return $choice <= new \DateTime('+3 days');
    },
]);

This will "prefer" the "now" and "tomorrow" choices only:

Finally, if your values are objects, you can also specify a property path string on the object that will return true or false.

The preferred choices are only meaningful when rendering a select element (i.e. expanded false). The preferred choices and normal choices are separated visually by a set of dotted lines (i.e. -------------------). This can be customized when rendering the field:

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{{ form_widget(form.publishAt, { 'separator': '=====' }) }}

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<?= $view['form']->widget($form['publishAt'], [
    'separator' => '=====',
]) ?>

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use Symfony\Component\Form\ChoiceList\ChoiceList;

// ...
$builder->add('choices', ChoiceType::class, [
    'preferred_choices' => ChoiceList::preferred($this, 'taggedAsFavorite'),
]);

trim ¶

type: boolean default: false

Trimming is disabled by default because the selected value or values must match the given choice values exactly (and they could contain whitespaces).

These options inherit from the FormType:

attr ¶

type: array default: []

If you want to add extra attributes to an HTML field representation you can use the attr option. It's an associative array with HTML attributes as keys. This can be useful when you need to set a custom class for some widget:

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$builder->add('body', TextareaType::class, [
    'attr' => ['class' => 'tinymce'],
]);

data ¶

type: mixed default: Defaults to field of the underlying structure.

When you create a form, each field initially displays the value of the corresponding property of the form's domain data (e.g. if you bind an object to the form). If you want to override this initial value for the form or an individual field, you can set it in the data option:

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use Symfony\Component\Form\Extension\Core\Type\HiddenType;
// ...

$builder->add('token', HiddenType::class, [
    'data' => 'abcdef',
]);

disabled ¶

type: boolean default: false

If you don't want a user to modify the value of a field, you can set the disabled option to true. Any submitted value will be ignored.

empty_data ¶

type: mixed

This option determines what value the field will return when the submitted value is empty (or missing). It does not set an initial value if none is provided when the form is rendered in a view.

This means it helps you handling form submission with blank fields. For example, if you want the name field to be explicitly set to John Doe when no value is selected, you can do it like this:

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$builder->add('name', null, [
    'required'   => false,
    'empty_data' => 'John Doe',
]);

This will still render an empty text box, but upon submission the John Doe value will be set. Use the data or placeholder options to show this initial value in the rendered form.

If a form is compound, you can set empty_data as an array, object or closure. See the How to Configure empty Data for a Form Class article for more details about these options.

help ¶

type: string or TranslatableInterface default: null

Allows you to define a help message for the form field, which by default is rendered below the field:

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use Symfony\Component\Translation\TranslatableMessage;

$builder
    ->add('zipCode', null, [
        'help' => 'The ZIP/Postal code for your credit card\'s billing address.',
    ])

    // ...

    ->add('status', null, [
        'help' => new TranslatableMessage('order.status', ['%order_id%' => $order->getId()], 'store'),
    ])
;

help_attr ¶

type: array default: []

Sets the HTML attributes for the element used to display the help message of the form field. Its value is an associative array with HTML attribute names as keys. These attributes can also be set in the template:

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{{ form_help(form.name, 'Your name', {
    'help_attr': {'class': 'CUSTOM_LABEL_CLASS'}
}) }}

help_html ¶

type: boolean default: false

By default, the contents of the help option are escaped before rendering them in the template. Set this option to true to not escape them, which is useful when the help contains HTML elements.

label ¶

type: string or TranslatableMessage default: The label is "guessed" from the field name

Sets the label that will be used when rendering the field. Setting to false will suppress the label:

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use Symfony\Component\Translation\TranslatableMessage;

$builder
    ->add('zipCode', null, [
        'label' => 'The ZIP/Postal code',
        // optionally, you can use TranslatableMessage objects as the label content
        'label' => new TranslatableMessage('address.zipCode', ['%country%' => $country], 'address'),
    ])

The label can also be set in the template:

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{{ form_label(form.name, 'Your name') }}

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echo $view['form']->label(
    $form['name'],
    'Your name'
);

label_attr ¶

type: array default: []

Sets the HTML attributes for the <label> element, which will be used when rendering the label for the field. It's an associative array with HTML attribute as a key. This attributes can also be directly set inside the template:

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{{ form_label(form.name, 'Your name', {
    'label_attr': {'class': 'CUSTOM_LABEL_CLASS'}
}) }}

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echo $view['form']->label(
    $form['name'],
    'Your name',
    ['label_attr' => ['class' => 'CUSTOM_LABEL_CLASS']]
);

label_format ¶

type: string default: null

Configures the string used as the label of the field, in case the label option was not set. This is useful when using keyword translation messages.

If you're using keyword translation messages as labels, you often end up having multiple keyword messages for the same label (e.g. profile_address_street, invoice_address_street). This is because the label is built for each "path" to a field. To avoid duplicated keyword messages, you can configure the label format to a static value, like:

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// ...
$profileFormBuilder->add('address', AddressType::class, [
    'label_format' => 'form.address.%name%',
]);

$invoiceFormBuilder->add('invoice', AddressType::class, [
    'label_format' => 'form.address.%name%',
]);

This option is inherited by the child types. With the code above, the label of the street field of both forms will use the form.address.street keyword message.

Two variables are available in the label format:

%id%

A unique identifier for the field, consisting of the complete path to the field and the field name (e.g. profile_address_street);

フィールドへの完全なパスとフィールド名 (例: profile_address_street) で構成される、フィールドの一意の識別子。

%name%

The field name (e.g. street).

フィールド名 (通りなど)。

The default value (null) results in a "humanized" version of the field name.

mapped ¶

type: boolean default: true

If you wish the field to be ignored when reading or writing to the object, you can set the mapped option to false.

required ¶

type: boolean default: true

If true, an HTML5 required attribute will be rendered. The corresponding label will also render with a required class.

This is superficial and independent of validation. At best, if you let Symfony guess your field type, then the value of this option will be guessed from your validation information.

row_attr ¶

type: array default: []

An associative array of the HTML attributes added to the element which is used to render the form type row:

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$builder->add('body', TextareaType::class, [
    'row_attr' => ['class' => 'text-editor', 'id' => '...'],
]);