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
LanguageTest		class	Drupal\Tests\ckeditor5\Kernel	core/modules/ckeditor5/tests/src/Kernel/LanguageTest.php	Tests language resolving for CKEditor 5.
LanguageTest		class	Drupal\Tests\ckeditor\Unit\Plugin\CKEditorPlugin	core/modules/ckeditor/tests/src/Unit/Plugin/CKEditorPlugin/LanguageTest.php	@coversDefaultClass \Drupal\ckeditor\Plugin\CKEditorPlugin\Language[[api-linebreak]]
LanguageTestBase		abstract class	Drupal\Tests\language\Kernel\Views	core/modules/language/tests/src/Kernel/Views/LanguageTestBase.php	Defines the base class for all Language handler tests.	3
LanguageTestBase		abstract class	Drupal\Tests\language\Kernel	core/modules/language/tests/src/Kernel/LanguageTestBase.php	Test for dependency injected language object.	4
LanguageTestController		class	Drupal\language_test\Controller	core/modules/language/tests/language_test/src/Controller/LanguageTestController.php	Controller routines for language_test routes.
LanguageTourTest		class	Drupal\Tests\language\Functional	core/modules/language/tests/src/Functional/LanguageTourTest.php	Tests tour functionality.
LanguageTypes		class	Drupal\language\Plugin\migrate\process	core/modules/language/src/Plugin/migrate/process/LanguageTypes.php	Processes the array for the language types.		1
LanguageTypesTest		class	Drupal\Tests\language\Unit\process	core/modules/language/tests/src/Unit/process/LanguageTypesTest.php	@coversDefaultClass \Drupal\language\Plugin\migrate\process\LanguageTypes[[api-linebreak]] @group language
LanguageUILanguageNegotiationTest		class	Drupal\Tests\language\Functional	core/modules/language/tests/src/Functional/LanguageUILanguageNegotiationTest.php	Tests the language UI for language switching.
LanguageUnitTest		class	Drupal\Tests\Core\Language	core/tests/Drupal/Tests/Core/Language/LanguageUnitTest.php	@coversDefaultClass \Drupal\Core\Language\Language[[api-linebreak]] @group Language
LanguageUrlRewritingTest		class	Drupal\Tests\language\Functional	core/modules/language/tests/src/Functional/LanguageUrlRewritingTest.php	Tests that URL rewriting works as expected.
LargeQueryTest		class	Drupal\Tests\mysql\Kernel\mysql	core/modules/mysql/tests/src/Kernel/mysql/LargeQueryTest.php	Tests handling of large queries.
LastTimestamp		class	Drupal\comment\Plugin\views\field	core/modules/comment/src/Plugin/views/field/LastTimestamp.php	Field handler to display the timestamp of a comment with the count of comments.
LatestRevision		class	Drupal\views\Plugin\views\filter	core/modules/views/src/Plugin/views/filter/LatestRevision.php	Filter to show only the latest revision of an entity.
LatestRevisionCheck		class	Drupal\content_moderation\Access	core/modules/content_moderation/src/Access/LatestRevisionCheck.php	Access check for the entity moderation tab.		2	2
LatestRevisionCheckTest		class	Drupal\Tests\content_moderation\Unit	core/modules/content_moderation/tests/src/Unit/LatestRevisionCheckTest.php	@coversDefaultClass \Drupal\content_moderation\Access\LatestRevisionCheck[[api-linebreak]] @group content_moderation
LatestRevisionFilterTest		class	Drupal\Tests\views\Kernel\Entity	core/modules/views/tests/src/Kernel/Entity/LatestRevisionFilterTest.php	Tests the 'Latest revision' filter.
LatestTranslationAffectedRevision		class	Drupal\views\Plugin\views\filter	core/modules/views/src/Plugin/views/filter/LatestTranslationAffectedRevision.php	Filter to show only the latest translation affected revision of an entity.
LatestTranslationAffectedRevisionTest		class	Drupal\Tests\views\Kernel\Entity	core/modules/views/tests/src/Kernel/Entity/LatestTranslationAffectedRevisionTest.php	Tests the 'Latest translation affected revision' filter.
Layout		class	Drupal\Core\Layout\Annotation	core/lib/Drupal/Core/Layout/Annotation/Layout.php	Defines a Layout annotation object.		1
LayoutBuilder		class	Drupal\layout_builder\Element	core/modules/layout_builder/src/Element/LayoutBuilder.php	Defines a render element for building the Layout Builder UI.		1
LayoutBuilderAccessCheck		class	Drupal\layout_builder\Access	core/modules/layout_builder/src/Access/LayoutBuilderAccessCheck.php	Provides an access check for the Layout Builder defaults.			2
LayoutBuilderAccessTest		class	Drupal\Tests\layout_builder\Functional	core/modules/layout_builder/tests/src/Functional/LayoutBuilderAccessTest.php	Tests access to Layout Builder.
LayoutBuilderBreadcrumbAlterTest		class	Drupal\Tests\layout_builder\Kernel	core/modules/layout_builder/tests/src/Kernel/LayoutBuilderBreadcrumbAlterTest.php	Tests layout_builder_system_breadcrumb_alter().
LayoutBuilderCompatibilityTestBase		abstract class	Drupal\Tests\layout_builder\Kernel	core/modules/layout_builder/tests/src/Kernel/LayoutBuilderCompatibilityTestBase.php	Tests Layout Builder's compatibility with existing systems.	3	1
LayoutBuilderContentModerationIntegrationTest		class	Drupal\Tests\content_moderation\Functional	core/modules/content_moderation/tests/src/Functional/LayoutBuilderContentModerationIntegrationTest.php	Tests Content Moderation's integration with Layout Builder.
LayoutBuilderContextMappingUpdatePathTest		class	Drupal\Tests\layout_builder\Functional\Update	core/modules/layout_builder/tests/src/Functional/Update/LayoutBuilderContextMappingUpdatePathTest.php	Tests the upgrade path for Layout Builder layout context mappings.
LayoutBuilderContextTrait		trait	Drupal\layout_builder\Context	core/modules/layout_builder/src/Context/LayoutBuilderContextTrait.php	Provides a wrapper around getting contexts from a section storage object.		6
LayoutBuilderController		class	Drupal\layout_builder\Controller	core/modules/layout_builder/src/Controller/LayoutBuilderController.php	Defines a controller to provide the Layout Builder admin UI.
LayoutBuilderDecorationTestHtmlEntityFormController		class	Drupal\layout_builder_decoration_test\Controller	core/modules/layout_builder/tests/modules/layout_builder_decoration_test/src/Controller/LayoutBuilderDecorationTestHtmlEntityFormController.php	Overrides the entity form controller service for layout builder decoration test.			2
LayoutBuilderDefaultValuesTest		class	Drupal\Tests\layout_builder\Functional	core/modules/layout_builder/tests/src/Functional/LayoutBuilderDefaultValuesTest.php	Tests rendering default field values in Layout Builder.
LayoutBuilderDisableForm		class	Drupal\layout_builder\Form	core/modules/layout_builder/src/Form/LayoutBuilderDisableForm.php	Disables Layout Builder for a given default.
LayoutBuilderDisableInteractionsTest		class	Drupal\Tests\layout_builder\FunctionalJavascript	core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderDisableInteractionsTest.php	Tests the Layout Builder disables interactions of rendered blocks.
LayoutBuilderElementTest		class	Drupal\Tests\layout_builder\Kernel	core/modules/layout_builder/tests/src/Kernel/LayoutBuilderElementTest.php	Tests the deprecation notices of the layout builder element.
LayoutBuilderEnabledInterface		interface	Drupal\layout_builder	core/modules/layout_builder/src/LayoutBuilderEnabledInterface.php	Provides methods for enabling and disabling Layout Builder.	2	1
LayoutBuilderEntityViewDisplay		class	Drupal\layout_builder\Entity	core/modules/layout_builder/src/Entity/LayoutBuilderEntityViewDisplay.php	Provides an entity view display entity that has a layout.	1	30
LayoutBuilderEntityViewDisplayForm		class	Drupal\layout_builder\Form	core/modules/layout_builder/src/Form/LayoutBuilderEntityViewDisplayForm.php	Edit form for the LayoutBuilderEntityViewDisplay entity type.		1
LayoutBuilderEntityViewDisplayHalJsonAnonTest		class	Drupal\Tests\hal\Functional\layout_builder	core/modules/hal/tests/src/Functional/layout_builder/LayoutBuilderEntityViewDisplayHalJsonAnonTest.php	@group hal @group legacy	2	1
LayoutBuilderEntityViewDisplayHalJsonBasicAuthTest		class	Drupal\Tests\hal\Functional\layout_builder	core/modules/hal/tests/src/Functional/layout_builder/LayoutBuilderEntityViewDisplayHalJsonBasicAuthTest.php	@group hal @group legacy	1	1
LayoutBuilderEntityViewDisplayHalJsonCookieTest		class	Drupal\Tests\hal\Functional\layout_builder	core/modules/hal/tests/src/Functional/layout_builder/LayoutBuilderEntityViewDisplayHalJsonCookieTest.php	@group hal @group legacy	1	1
LayoutBuilderEntityViewDisplayJsonAnonTest		class	Drupal\Tests\layout_builder\Functional\Rest	core/modules/layout_builder/tests/src/Functional/Rest/LayoutBuilderEntityViewDisplayJsonAnonTest.php	@group layout_builder @group rest	1	1
LayoutBuilderEntityViewDisplayJsonBasicAuthTest		class	Drupal\Tests\layout_builder\Functional\Rest	core/modules/layout_builder/tests/src/Functional/Rest/LayoutBuilderEntityViewDisplayJsonBasicAuthTest.php	@group layout_builder @group rest	1	1
LayoutBuilderEntityViewDisplayJsonCookieTest		class	Drupal\Tests\layout_builder\Functional\Rest	core/modules/layout_builder/tests/src/Functional/Rest/LayoutBuilderEntityViewDisplayJsonCookieTest.php	@group layout_builder @group rest	1	1
LayoutBuilderEntityViewDisplayResourceTestBase		abstract class	Drupal\Tests\layout_builder\Functional\Rest	core/modules/layout_builder/tests/src/Functional/Rest/LayoutBuilderEntityViewDisplayResourceTestBase.php	Provides a base class for testing LayoutBuilderEntityViewDisplay resources.	7	1
LayoutBuilderEntityViewDisplayStorage		class	Drupal\layout_builder\Entity	core/modules/layout_builder/src/Entity/LayoutBuilderEntityViewDisplayStorage.php	Provides storage for entity view display entities that have layouts.		1
LayoutBuilderEntityViewDisplayTest		class	Drupal\Tests\layout_builder\Kernel	core/modules/layout_builder/tests/src/Kernel/LayoutBuilderEntityViewDisplayTest.php	@coversDefaultClass \Drupal\layout_builder\Entity\LayoutBuilderEntityViewDisplay[[api-linebreak]]
LayoutBuilderEntityViewDisplayTest		class	Drupal\Tests\layout_builder\Functional\Jsonapi	core/modules/layout_builder/tests/src/Functional/Jsonapi/LayoutBuilderEntityViewDisplayTest.php	JSON:API integration test for the "EntityViewDisplay" config entity type.	1	1
LayoutBuilderEntityViewDisplayXmlAnonTest		class	Drupal\Tests\layout_builder\Functional\Rest	core/modules/layout_builder/tests/src/Functional/Rest/LayoutBuilderEntityViewDisplayXmlAnonTest.php	@group layout_builder @group rest	1	1
LayoutBuilderEntityViewDisplayXmlBasicAuthTest		class	Drupal\Tests\layout_builder\Functional\Rest	core/modules/layout_builder/tests/src/Functional/Rest/LayoutBuilderEntityViewDisplayXmlBasicAuthTest.php	@group layout_builder @group rest	1	1
LayoutBuilderEntityViewDisplayXmlCookieTest		class	Drupal\Tests\layout_builder\Functional\Rest	core/modules/layout_builder/tests/src/Functional/Rest/LayoutBuilderEntityViewDisplayXmlCookieTest.php	@group layout_builder @group rest	1	1

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