NumberType Field ¶

grouping ¶

type: boolean default: false

This value is used internally as the NumberFormatter::GROUPING_USED value when using PHP's NumberFormatter class. Its documentation is non-existent, but it appears that if you set this to true, numbers will be grouped with a comma or period (depending on your locale): 12345.123 would display as 12,345.123.

html5 ¶

type: boolean default: false

If set to true, the HTML input will be rendered as a native HTML5 type="number" form.

input ¶

type: string default: number

The format of the input data - i.e. the format that the number is stored on your underlying object. Valid values are number and string. Setting this option to string can be useful if the underlying data is a string for precision reasons (for example, Doctrine uses strings for the decimal type).

scale ¶

type: integer default: Locale-specific (usually around 3)

This specifies how many decimals will be allowed until the field rounds the submitted value (via rounding_mode). For example, if scale is set to 2, a submitted value of 20.123 will be rounded to, for example, 20.12 (depending on your rounding_mode).

rounding_mode ¶

type: integer default: \NumberFormatter::ROUND_DOWN for IntegerType and \NumberFormatter::ROUND_HALFUP for MoneyType and NumberType

• IntegerType
  整数型

default: \NumberFormatter::ROUND_DOWN

• MoneyType and NumberType
  MoneyType と NumberType

default: \NumberFormatter::ROUND_HALFUP

If a submitted number needs to be rounded (based on the scale option), you have several configurable options for that rounding. Each option is a constant on the NumberFormatter class:

• \NumberFormatter::ROUND_DOWN Round towards zero. It rounds 1.4 to 1 and -1.4 to -1.
  \NumberFormatter::ROUND_DOWN ゼロ方向に丸めます。 1.4 を 1 に丸め、-1.4 を -1 に丸めます。
• \NumberFormatter::ROUND_FLOOR Round towards negative infinity. It rounds 1.4 to 1 and -1.4 to -2.
  \NumberFormatter::ROUND_FLOOR 負の無限大に向かって丸めます。 1.4 を 1 に丸め、-1.4 を -2 に丸めます。
• \NumberFormatter::ROUND_UP Round away from zero. It rounds 1.4 to 2 and -1.4 to -2.
  \NumberFormatter::ROUND_UP ゼロ以外を丸めます。 1.4 から 2 および -1.4 から -2 に丸められます。
• \NumberFormatter::ROUND_CEILING Round towards positive infinity. It rounds 1.4 to 2 and -1.4 to -1.
  \NumberFormatter::ROUND_CEILING 正の無限大に向かって丸めます。 1.4 を 2 に丸め、-1.4 を -1 に丸めます。
• \NumberFormatter::ROUND_HALFDOWN Round towards the "nearest neighbor". If both neighbors are equidistant, round down. It rounds 2.5 and 1.6 to 2, 1.5 and 1.4 to 1.
  \NumberFormatter::ROUND_HALFDOWN 「最近傍」に向かって丸めます。両方の隣人が等距離にある場合は、切り捨てます。 2.5 と 1.6 を 2 に、1.5 と 1.4 を 1 に丸めます。
• \NumberFormatter::ROUND_HALFEVEN Round towards the "nearest neighbor". If both neighbors are equidistant, round towards the even neighbor. It rounds 2.5, 1.6 and 1.5 to 2 and 1.4 to 1.
  \NumberFormatter::ROUND_HALFEVEN 「最近傍」に向かって丸めます。両方の隣人が等距離にある場合は、偶数隣人に向かって丸めます。 2.5、1.6、および 1.5 を 2 に丸め、1.4 を 1 に丸めます。
• \NumberFormatter::ROUND_HALFUP Round towards the "nearest neighbor". If both neighbors are equidistant, round up. It rounds 2.5 to 3, 1.6 and 1.5 to 2 and 1.4 to 1.
  \NumberFormatter::ROUND_HALFUP 「最近傍」に向かって丸めます。両方の隣人が等距離にある場合は、切り上げます。 2.5 を 3 に、1.6 と 1.5 を 2 に、1.4 を 1 に丸めます。

When the html5 option is set to false, the <input> element will include an inputmode HTML attribute which depends on the value of this option. If the scale value is 0, inputmode will be numeric; if scale is set to any value greater than 0, inputmode will be decimal.

compound ¶

type: boolean default: false

This option specifies whether the type contains child types or not. This option is managed internally for built-in types, so there is no need to configure it explicitly.

invalid_message ¶

type: string default: This value is not valid

This is the validation error message that's used if the data entered into this field doesn't make sense (i.e. fails validation).

This might happen, for example, if the user enters a nonsense string into a TimeType field that cannot be converted into a real time or if the user enters a string (e.g. apple) into a number field.

Normal (business logic) validation (such as when setting a minimum length for a field) should be set using validation messages with your validation rules (reference).

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

The default value is '' (the empty string).

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.

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',
    ],
]);

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.

invalid_message_parameters ¶

type: array default: []

When setting the invalid_message option, you may need to include some variables in the string. This can be done by adding placeholders to that option and including the variables in this option:

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$builder->add('someField', SomeFormType::class, [
    // ...
    'invalid_message' => 'You entered an invalid value, it should include %num% letters',
    'invalid_message_parameters' => ['%num%' => 6],
]);

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' => '...'],
]);