1. class
  2. Drupal
  3. \
  4. Core
  5. \
  6. Render
  7. \
  8. Element
  9. \
  10. Fieldset

Fieldset

class Fieldset extends RenderElement (View source)

Provides a render element for a group of form elements.

Usage example:

Traits

StringTranslationTrait

Wrapper methods for \Drupal\Core\StringTranslation\TranslationInterface.

DependencySerializationTrait

Provides dependency injection friendly methods for serialization.

MessengerTrait

Provides a trait for the messenger service.

Constants

DERIVATIVE_SEPARATOR

A string which is used to separate base plugin IDs from the derivative ID.

Properties

protected string $pluginId

The plugin_id.

 from  PluginBase
protected array $pluginDefinition

The plugin implementation definition.

 from  PluginBase
protected array $configuration

Configuration information passed into the plugin.

 from  PluginBase
protected TranslationInterface $stringTranslation

The string translation service.

 from  StringTranslationTrait
protected array $_serviceIds

An array of service IDs keyed by property name used for serialization.

 from  DependencySerializationTrait
protected array $_entityStorages

An array of entity type IDs keyed by the property name of their storages.

 from  DependencySerializationTrait
protected MessengerInterface $messenger

The messenger.

 from  MessengerTrait

Methods

__construct(array $configuration, string $plugin_id, mixed $plugin_definition)

Constructs a \Drupal\Component\Plugin\PluginBase object.

from  PluginBase
string
getPluginId()

Gets the plugin_id of the plugin instance.

from  PluginBase
string
getBaseId()

Gets the base_plugin_id of the plugin instance.

from  PluginBase
string|null
getDerivativeId()

Gets the derivative_id of the plugin instance.

from  PluginBase
array
getPluginDefinition()

Gets the definition of the plugin implementation.

from  PluginBase
bool
isConfigurable()

Determines if the plugin is configurable.

from  PluginBase
TranslatableMarkup
t(string $string, array $args = [], array $options = [])

Translates a string to the current language or to a given language.

from  StringTranslationTrait
formatPlural($count, $singular, $plural, array $args = [], array $options = [])

Formats a string containing a count of items.

from  StringTranslationTrait
getNumberOfPlurals($langcode = NULL)

Returns the number of plurals supported by a given language.

from  StringTranslationTrait
TranslationInterface
getStringTranslation()

Gets the string translation service.

from  StringTranslationTrait
$this
setStringTranslation(TranslationInterface $translation)

Sets the string translation service to use.

from  StringTranslationTrait
__sleep()

{@inheritdoc}

from  DependencySerializationTrait
__wakeup()

{@inheritdoc}

from  DependencySerializationTrait
setMessenger(MessengerInterface $messenger)

Sets the messenger.

from  MessengerTrait
MessengerInterface
messenger()

Gets the messenger.

from  MessengerTrait
static 
setAttributes(array $element, array $class = [])

Sets a form element's class attribute.

from  RenderElement
static array
preRenderGroup(array $element)

Adds members of this group as actual elements for rendering.

from  RenderElement
static array
processAjaxForm(array $element, FormStateInterface $form_state, array $complete_form)

Form element processing handler for the #ajax form property.

from  RenderElement
static array
preRenderAjaxForm(array $element)

Adds Ajax information about an element to communicate with JavaScript.

from  RenderElement
static array
processGroup(array $element, FormStateInterface $form_state, array $complete_form)

Arranges elements into groups.

from  RenderElement
array
getInfo()

Returns the element properties for this element.

Details

in PluginBase at line 53
__construct(array $configuration, string $plugin_id, mixed $plugin_definition)

Constructs a \Drupal\Component\Plugin\PluginBase object.

Parameters

array $configuration

A configuration array containing information about the plugin instance.
string $plugin_id

The plugin_id for the plugin instance.
mixed $plugin_definition

The plugin implementation definition.

in PluginBase at line 62
string getPluginId()

Gets the plugin_id of the plugin instance.

Return Value

string

The plugin_id of the plugin instance.

in PluginBase at line 69
string getBaseId()

Gets the base_plugin_id of the plugin instance.

Return Value

string

The base_plugin_id of the plugin instance.

in PluginBase at line 80
string|null getDerivativeId()

Gets the derivative_id of the plugin instance.

Return Value

string|null

The derivative_id of the plugin instance NULL otherwise.

in PluginBase at line 92
array getPluginDefinition()

Gets the definition of the plugin implementation.

Return Value

array

The plugin definition, as returned by the discovery object used by the plugin manager.

in PluginBase at line 102
bool isConfigurable()

Determines if the plugin is configurable.

Return Value

bool

A boolean indicating whether the plugin is configurable.

in StringTranslationTrait at line 70
protected TranslatableMarkup t(string $string, array $args = [], array $options = [])

Translates a string to the current language or to a given language.

See \Drupal\Core\StringTranslation\TranslatableMarkup::__construct() for important security information and usage guidelines.

In order for strings to be localized, make them available in one of the ways supported by the

Parameters

string $string

A string containing the English text to translate.
array $args

(optional) An associative array of replacements to make after translation. Based on the first character of the key, the value is escaped and/or themed. See \Drupal\Component\Render\FormattableMarkup::placeholderFormat() for details.
array $options

(optional) An associative array of additional options, with the following elements:

  • 'langcode' (defaults to the current language): A language code, to translate to a language other than what is used to display the page.
  • 'context' (defaults to the empty context): The context the source string belongs to. See the @link i18n Internationalization topic @endlink for more information about string contexts.

Return Value

TranslatableMarkup

An object that, when cast to a string, returns the translated string.

See also

FormattableMarkup::placeholderFormat
TranslatableMarkup::__construct

in StringTranslationTrait at line 79
protected formatPlural($count, $singular, $plural, array $args = [], array $options = [])

Formats a string containing a count of items.

Parameters

$count
$singular
$plural
array $args
array $options

See also

TranslationInterface::formatPlural

in StringTranslationTrait at line 88
protected getNumberOfPlurals($langcode = NULL)

Returns the number of plurals supported by a given language.

Parameters

$langcode

See also

PluralFormulaInterface::getNumberOfPlurals

in StringTranslationTrait at line 102
protected TranslationInterface getStringTranslation()

Gets the string translation service.

Return Value

TranslationInterface

The string translation service.

in StringTranslationTrait at line 118
$this setStringTranslation(TranslationInterface $translation)

Sets the string translation service to use.

Parameters

TranslationInterface $translation

The string translation service.

Return Value

$this

in DependencySerializationTrait at line 32
__sleep()

{@inheritdoc}

in DependencySerializationTrait at line 67
__wakeup()

{@inheritdoc}

in MessengerTrait at line 23
setMessenger(MessengerInterface $messenger)

Sets the messenger.

Parameters

MessengerInterface $messenger

The messenger.

in MessengerTrait at line 33
MessengerInterface messenger()

Gets the messenger.

Return Value

MessengerInterface

The messenger.

in RenderElement at line 129
static setAttributes(array $element, array $class = [])

Sets a form element's class attribute.

Adds 'required' and 'error' classes as needed.

Parameters

array $element

The form element.
array $class

Array of new class names to be added.

in RenderElement at line 160
static array preRenderGroup(array $element)

Adds members of this group as actual elements for rendering.

Parameters

array $element

An associative array containing the properties and children of the element.

Return Value

array

The modified element with all group members.

in RenderElement at line 228
static array processAjaxForm(array $element, FormStateInterface $form_state, array $complete_form)

Form element processing handler for the #ajax form property.

This method is useful for non-input elements that can be used in and outside the context of a form.

Parameters

array $element

An associative array containing the properties of the element.
FormStateInterface $form_state

The current state of the form.
array $complete_form

The complete form structure.

Return Value

array

The processed element.

See also

\Drupal\Core\Render\Element\self::preRenderAjaxForm()

in RenderElement at line 254
static array preRenderAjaxForm(array $element)

Adds Ajax information about an element to communicate with JavaScript.

If #ajax is set on an element, this additional JavaScript is added to the page header to attach the Ajax behaviors. See ajax.js for more information.

Parameters

array $element

An associative array containing the properties of the element. Properties used:

  • ajax['event']

  • ajax['prevent']

  • ajax['url']

  • ajax['callback']

  • ajax['options']

  • ajax['wrapper']

  • ajax['parameters']

  • ajax['effect']

  • ajax['accepts']

Return Value

array

The processed element with the necessary JavaScript attached to it.

in RenderElement at line 436
static array processGroup(array $element, FormStateInterface $form_state, array $complete_form)

Arranges elements into groups.

This method is useful for non-input elements that can be used in and outside the context of a form.

Parameters

array $element

An associative array containing the properties and children of the element. Note that $element must be taken by reference here, so processed child elements are taken over into $form_state.
FormStateInterface $form_state

The current state of the form.
array $complete_form

The complete form structure.

Return Value

array

The processed element.

at line 31
array getInfo()

Returns the element properties for this element.

Return Value

array

An array of element properties. See \Drupal\Core\Render\ElementInfoManagerInterface::getInfo() for documentation of the standard properties of all elements, and the return value format.