Classes, traits, and interfaces - 9.5.x - drupal

Introduction to classes

A lot of the PHP code in Drupal is object oriented (OO), making use of PHP classes, interfaces, and traits. See the Objected-oriented programming conventions for more information.

See also

Objected-oriented programming conventions

File

core/core.api.php, line 1523

Name	Deprecated	Object type	Namespace	File name	Summary	Direct uses	Use statements	Strings
Views		class	Drupal\views	core/modules/views/src/Views.php	Static service container wrapper for views.		269
ViewsAccess		class	Drupal\views\Annotation	core/modules/views/src/Annotation/ViewsAccess.php	Defines a Plugin annotation object for views access plugins.
ViewsArea		class	Drupal\views\Annotation	core/modules/views/src/Annotation/ViewsArea.php	Defines a Plugin annotation object for views area handlers.
ViewsArgument		class	Drupal\views\Annotation	core/modules/views/src/Annotation/ViewsArgument.php	Defines a Plugin annotation object for views argument handlers.
ViewsArgumentDefault		class	Drupal\views\Annotation	core/modules/views/src/Annotation/ViewsArgumentDefault.php	Defines a Plugin annotation object for views argument default plugins.
ViewsArgumentValidator		class	Drupal\views\Annotation	core/modules/views/src/Annotation/ViewsArgumentValidator.php	Defines a Plugin annotation object for views argument validator plugins.
ViewsBlock		class	Drupal\views\Plugin\Derivative	core/modules/views/src/Plugin/Derivative/ViewsBlock.php	Provides block plugin definitions for all Views block displays.
ViewsBlock		class	Drupal\views\Plugin\Block	core/modules/views/src/Plugin/Block/ViewsBlock.php	Provides a generic Views block.		4
ViewsBlockBase		abstract class	Drupal\views\Plugin\Block	core/modules/views/src/Plugin/Block/ViewsBlockBase.php	Base class for Views block plugins.	2
ViewsBlockTest		class	Drupal\Tests\views\Unit\Plugin\Block	core/modules/views/tests/src/Unit/Plugin/Block/ViewsBlockTest.php	@coversDefaultClass \Drupal\views\Plugin\block\ViewsBlock[[api-linebreak]] @group views
ViewsBlockTest		class	Drupal\Tests\views\Kernel\Plugin	core/modules/views/tests/src/Kernel/Plugin/ViewsBlockTest.php	Tests native behaviors of the block views plugin.
ViewsBulkTest		class	Drupal\Tests\views\Functional\Plugin	core/modules/views/tests/src/Functional/Plugin/ViewsBulkTest.php	Tests views bulk operation selection.
ViewsCache		class	Drupal\views\Annotation	core/modules/views/src/Annotation/ViewsCache.php	Defines a Plugin annotation object for views cache plugins.
ViewsConfigDependenciesIntegrationTest		class	Drupal\Tests\views\Kernel	core/modules/views/tests/src/Kernel/ViewsConfigDependenciesIntegrationTest.php	Tests integration of views with other modules.
ViewsConfigEntityTest		class	Drupal\views_config_entity_test\Entity	core/modules/views/tests/modules/views_config_entity_test/src/Entity/ViewsConfigEntityTest.php	Defines a configuration-based entity type used for testing Views data.
ViewsConfigEntityTestViewsData		class	Drupal\views_config_entity_test	core/modules/views/tests/modules/views_config_entity_test/src/ViewsConfigEntityTestViewsData.php	Provides a view to override views data for config test entity types.
ViewsConfigUpdater		class	Drupal\views	core/modules/views/src/ViewsConfigUpdater.php	Provides a BC layer for modules providing old configurations.		3
ViewsConfigUpdaterTest		class	Drupal\Tests\views\Kernel	core/modules/views/tests/src/Kernel/ViewsConfigUpdaterTest.php	@coversDefaultClass \Drupal\views\ViewsConfigUpdater[[api-linebreak]]
ViewsData		class	Drupal\views	core/modules/views/src/ViewsData.php	Class to manage and lazy load cached views data.		8	2
ViewsData		class	Drupal\content_moderation	core/modules/content_moderation/src/ViewsData.php	Provides the content_moderation views integration.		1
ViewsDataHelper		class	Drupal\views	core/modules/views/src/ViewsDataHelper.php	Defines a helper class for stuff related to views data.		1	2
ViewsDataHelperTest		class	Drupal\Tests\views\Unit	core/modules/views/tests/src/Unit/ViewsDataHelperTest.php	@coversDefaultClass \Drupal\views\ViewsDataHelper[[api-linebreak]] @group views
ViewsDataIntegrationTest		class	Drupal\Tests\content_moderation\Kernel	core/modules/content_moderation/tests/src/Kernel/ViewsDataIntegrationTest.php	Tests the views integration of content_moderation.
ViewsDataTest		class	Drupal\Tests\options\Kernel\Views	core/modules/options/tests/src/Kernel/Views/ViewsDataTest.php	Test to ensure views data is properly created for the Options module.
ViewsDataTest		class	Drupal\Tests\views\Unit	core/modules/views/tests/src/Unit/ViewsDataTest.php	@coversDefaultClass \Drupal\views\ViewsData[[api-linebreak]] @group views
ViewsDisplay		class	Drupal\views\Annotation	core/modules/views/src/Annotation/ViewsDisplay.php	Defines a Plugin annotation object for views display plugins.
ViewsDisplayExtender		class	Drupal\views\Annotation	core/modules/views/src/Annotation/ViewsDisplayExtender.php	Defines a Plugin annotation object for views display extender plugins.
ViewSelectionEntityReferenceTest		class	Drupal\Tests\views\Kernel\Entity	core/modules/views/tests/src/Kernel/Entity/ViewSelectionEntityReferenceTest.php	Tests the ViewSelection EntityReferenceSelection plugin.
ViewsEntityArgumentValidator		class	Drupal\views\Plugin\Derivative	core/modules/views/src/Plugin/Derivative/ViewsEntityArgumentValidator.php	Provides views argument validator plugin definitions for all entity types.
ViewsEntityRow		class	Drupal\views\Plugin\Derivative	core/modules/views/src/Plugin/Derivative/ViewsEntityRow.php	Provides views row plugin definitions for all non-special entity types.
ViewsEntitySchemaSubscriber		class	Drupal\views\EventSubscriber	core/modules/views/src/EventSubscriber/ViewsEntitySchemaSubscriber.php	Reacts to changes on entity types to update all views entities.			2
ViewsEntitySchemaSubscriberIntegrationTest		class	Drupal\Tests\views\Kernel\EventSubscriber	core/modules/views/tests/src/Kernel/EventSubscriber/ViewsEntitySchemaSubscriberIntegrationTest.php	Tests \Drupal\views\EventSubscriber\ViewsEntitySchemaSubscriber.
ViewsEscapingTest		class	Drupal\Tests\views\Functional	core/modules/views/tests/src/Functional/ViewsEscapingTest.php	Tests output of Views.
ViewsExposedFilterBlock		class	Drupal\views\Plugin\Derivative	core/modules/views/src/Plugin/Derivative/ViewsExposedFilterBlock.php	Provides block plugin definitions for all Views exposed filters.
ViewsExposedFilterBlock		class	Drupal\views\Plugin\Block	core/modules/views/src/Plugin/Block/ViewsExposedFilterBlock.php	Provides a 'Views Exposed Filter' block.
ViewsExposedForm		class	Drupal\views\Form	core/modules/views/src/Form/ViewsExposedForm.php	Provides the views exposed form.		1
ViewsExposedForm		class	Drupal\views\Annotation	core/modules/views/src/Annotation/ViewsExposedForm.php	Defines a Plugin annotation object for views exposed form plugins.
ViewsField		class	Drupal\views\Annotation	core/modules/views/src/Annotation/ViewsField.php	Defines a Plugin annotation object for views field handlers.
ViewsFilter		class	Drupal\views\Annotation	core/modules/views/src/Annotation/ViewsFilter.php	Defines a Plugin annotation object for views filter handlers.
ViewsForm		class	Drupal\views\Form	core/modules/views/src/Form/ViewsForm.php	Provides a base class for single- or multistep view forms.		6
ViewsFormAlterTest		class	Drupal\Tests\views\Functional	core/modules/views/tests/src/Functional/ViewsFormAlterTest.php	Tests hook_form_BASE_FORM_ID_alter for a ViewsForm.
ViewsFormBase		abstract class	Drupal\views_ui\Form\Ajax	core/modules/views_ui/src/Form/Ajax/ViewsFormBase.php	Provides a base class for Views UI AJAX forms.	10
ViewsFormInterface		interface	Drupal\views_ui\Form\Ajax	core/modules/views_ui/src/Form/Ajax/ViewsFormInterface.php		1	1
ViewsFormMainForm		class	Drupal\views\Form	core/modules/views/src/Form/ViewsFormMainForm.php			1
ViewsFormMultipleTest		class	Drupal\Tests\views\Functional	core/modules/views/tests/src/Functional/ViewsFormMultipleTest.php	Tests a page with multiple Views forms.
ViewsFormTest		class	Drupal\Tests\views\Functional\Plugin	core/modules/views/tests/src/Functional/Plugin/ViewsFormTest.php	Tests Views forms functionality.
ViewsHandlerAnnotationBase		abstract class	Drupal\views\Annotation	core/modules/views/src/Annotation/ViewsHandlerAnnotationBase.php	Defines an abstract base class for all views handler annotations.	7
ViewsHandlerInterface		interface	Drupal\views\Plugin\views	core/modules/views/src/Plugin/views/ViewsHandlerInterface.php	Provides an interface for all views handlers.	2	2
ViewsHandlerManager		class	Drupal\views\Plugin	core/modules/views/src/Plugin/ViewsHandlerManager.php	Plugin type manager for all views handlers.		5	8
ViewsHandlerManagerTest		class	Drupal\Tests\views\Unit	core/modules/views/tests/src/Unit/ViewsHandlerManagerTest.php	Tests the ViewsHandlerManager class.

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