class Form in Drupal 9

Provides a render element for a form.

Plugin annotation

@RenderElement("form");

Hierarchy

• class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
  • class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait
    • class \Drupal\Core\Render\Element\RenderElement implements ElementInterface
      • class \Drupal\Core\Render\Element\Form

4 string references to 'Form'

ContactFormListBuilder::buildHeader in core/modules/contact/src/ContactFormListBuilder.php

Builds the header row for the entity listing.

ContactSitewideTest::testSiteWideContact in core/modules/contact/tests/src/Functional/ContactSitewideTest.php

Tests configuration options and the site-wide contact form.

ContactStorageTest::testContactStorage in core/modules/contact/tests/src/Functional/ContactStorageTest.php

Tests configuration options and the site-wide contact form.

EntityDisplayTest::assertDependencyHelper in core/modules/field_ui/tests/src/Kernel/EntityDisplayTest.php

Provides a helper for dependency assertions.

4 #type uses of Form

FormAjaxSubscriberTest::testOnException in core/tests/Drupal/Tests/Core/Form/EventSubscriber/FormAjaxSubscriberTest.php

@covers ::onException

FormAjaxSubscriberTest::testOnExceptionNestedException in core/tests/Drupal/Tests/Core/Form/EventSubscriber/FormAjaxSubscriberTest.php

@covers ::onException @covers ::getFormAjaxException

FormAjaxSubscriberTest::testOnExceptionNewBuildId in core/tests/Drupal/Tests/Core/Form/EventSubscriber/FormAjaxSubscriberTest.php

@covers ::onException

FormAjaxSubscriberTest::testOnExceptionResponseBuilderException in core/tests/Drupal/Tests/Core/Form/EventSubscriber/FormAjaxSubscriberTest.php

@covers ::onException

File

core/lib/Drupal/Core/Render/Element/Form.php, line 10

Namespace

Drupal\Core\Render\Element

class Form extends RenderElement {

  /**
   * {@inheritdoc}
   */
  public function getInfo() {
    return [
      '#method' => 'post',
      '#theme_wrappers' => [
        'form',
      ],
    ];
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DependencySerializationTrait::$_entityStorages	protected	property
DependencySerializationTrait::$_serviceIds	protected	property
DependencySerializationTrait::__sleep	public	function		2
DependencySerializationTrait::__wakeup	public	function		2
Form::getInfo	public	function	Returns the element properties for this element. Overrides ElementInterface::getInfo
MessengerTrait::$messenger	protected	property	The messenger.	27
MessengerTrait::messenger	public	function	Gets the messenger.	27
MessengerTrait::setMessenger	public	function	Sets the messenger.
PluginBase::$configuration	protected	property	Configuration information passed into the plugin.	1
PluginBase::$pluginDefinition	protected	property	The plugin implementation definition.	1
PluginBase::$pluginId	protected	property	The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR		constant	A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId	public	function	Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId	public	function	Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition	public	function	Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition	2
PluginBase::getPluginId	public	function	Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::isConfigurable	public	function	Determines if the plugin is configurable.
PluginBase::__construct	public	function	Constructs a \Drupal\Component\Plugin\PluginBase object.	98
RenderElement::preRenderAjaxForm	public static	function	Adds Ajax information about an element to communicate with JavaScript.
RenderElement::preRenderGroup	public static	function	Adds members of this group as actual elements for rendering.
RenderElement::processAjaxForm	public static	function	Form element processing handler for the #ajax form property.	1
RenderElement::processGroup	public static	function	Arranges elements into groups.
RenderElement::setAttributes	public static	function	Sets a form element's class attribute. Overrides ElementInterface::setAttributes
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	4
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.