Classes, traits, and interfaces - 8.9.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 1511

Name	Deprecated	Object type	Namespace	File name	Summary	Direct uses	Use statements	Strings
ContentEntityNullStorage		class	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/ContentEntityNullStorage.php	Defines a null entity storage.	1	5
ContentEntityNullStorageTest		class	Drupal\KernelTests\Core\Entity	core/tests/Drupal/KernelTests/Core/Entity/ContentEntityNullStorageTest.php	Tests ContentEntityNullStorage entity query support.
ContentEntityStorageBase		abstract class	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/ContentEntityStorageBase.php	Base class for content entity storage handlers.	2	1
ContentEntityStorageBaseTest		class	Drupal\KernelTests\Core\Entity	core/tests/Drupal/KernelTests/Core/Entity/ContentEntityStorageBaseTest.php	@coversDefaultClass \Drupal\Core\Entity\ContentEntityStorageBase
ContentEntityStorageInterface		interface	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/ContentEntityStorageInterface.php	A storage that supports content entity types.	10	15
ContentEntityTest		class	Drupal\Tests\migrate_drupal\Kernel\Plugin\migrate\source	core/modules/migrate_drupal/tests/src/Kernel/Plugin/migrate/source/ContentEntityTest.php	Tests the entity content source plugin.
ContentEntityType		class	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/ContentEntityType.php	Provides an implementation of a content entity type and its metadata.	2	6
ContentEntityType		class	Drupal\Core\Entity\Annotation	core/lib/Drupal/Core/Entity/Annotation/ContentEntityType.php	Defines a content entity type annotation object.
ContentEntityTypeInterface		interface	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/ContentEntityTypeInterface.php	Provides an interface for a content entity type and its metadata.	1	26
ContentLanguageSettings		class	Drupal\language\Entity	core/modules/language/src/Entity/ContentLanguageSettings.php	Defines the ContentLanguageSettings entity.		32
ContentLanguageSettingsException		class	Drupal\language	core/modules/language/src/ContentLanguageSettingsException.php	Exception thrown by ContentLanguageSettings when target bundle is not set.		1
ContentLanguageSettingsForm		class	Drupal\language\Form	core/modules/language/src/Form/ContentLanguageSettingsForm.php	Configure the content language settings for this site.			1
ContentLanguageSettingsHalJsonAnonTest		class	Drupal\Tests\language\Functional\Hal	core/modules/language/tests/src/Functional/Hal/ContentLanguageSettingsHalJsonAnonTest.php	@group hal
ContentLanguageSettingsHalJsonBasicAuthTest		class	Drupal\Tests\language\Functional\Hal	core/modules/language/tests/src/Functional/Hal/ContentLanguageSettingsHalJsonBasicAuthTest.php	@group hal
ContentLanguageSettingsHalJsonCookieTest		class	Drupal\Tests\language\Functional\Hal	core/modules/language/tests/src/Functional/Hal/ContentLanguageSettingsHalJsonCookieTest.php	@group hal
ContentLanguageSettingsInterface		interface	Drupal\language	core/modules/language/src/ContentLanguageSettingsInterface.php	Provides an interface defining language settings for content entities.	1	2
ContentLanguageSettingsJsonAnonTest		class	Drupal\Tests\language\Functional\Rest	core/modules/language/tests/src/Functional/Rest/ContentLanguageSettingsJsonAnonTest.php	@group rest
ContentLanguageSettingsJsonBasicAuthTest		class	Drupal\Tests\language\Functional\Rest	core/modules/language/tests/src/Functional/Rest/ContentLanguageSettingsJsonBasicAuthTest.php	@group rest
ContentLanguageSettingsJsonCookieTest		class	Drupal\Tests\language\Functional\Rest	core/modules/language/tests/src/Functional/Rest/ContentLanguageSettingsJsonCookieTest.php	@group rest
ContentLanguageSettingsResourceTestBase		abstract class	Drupal\Tests\language\Functional\Rest	core/modules/language/tests/src/Functional/Rest/ContentLanguageSettingsResourceTestBase.php		10	4
ContentLanguageSettingsResourceTestBase	in drupal:8.6.0 and is removed from drupal:9.0.0. Use Drupal\Tests\language\Functional\Rest\ContentLanguageSettingsResourceTestBase instead.	abstract class	Drupal\Tests\rest\Functional\EntityResource\ContentLanguageSettings	core/modules/rest/tests/src/Functional/EntityResource/ContentLanguageSettings/ContentLanguageSettingsResourceTestBase.php
ContentLanguageSettingsTest		class	Drupal\Tests\jsonapi\Functional	core/modules/jsonapi/tests/src/Functional/ContentLanguageSettingsTest.php	JSON:API integration test for "ContentLanguageSettings" config entity type.
ContentLanguageSettingsUnitTest		class	Drupal\Tests\language\Unit	core/modules/language/tests/src/Unit/ContentLanguageSettingsUnitTest.php	@coversDefaultClass \Drupal\language\Entity\ContentLanguageSettings @group language
ContentLanguageSettingsXmlAnonTest		class	Drupal\Tests\language\Functional\Rest	core/modules/language/tests/src/Functional/Rest/ContentLanguageSettingsXmlAnonTest.php	@group rest
ContentLanguageSettingsXmlBasicAuthTest		class	Drupal\Tests\language\Functional\Rest	core/modules/language/tests/src/Functional/Rest/ContentLanguageSettingsXmlBasicAuthTest.php	@group rest
ContentLanguageSettingsXmlCookieTest		class	Drupal\Tests\language\Functional\Rest	core/modules/language/tests/src/Functional/Rest/ContentLanguageSettingsXmlCookieTest.php	@group rest
ContentModeration		class	Drupal\content_moderation\Plugin\WorkflowType	core/modules/content_moderation/src/Plugin/WorkflowType/ContentModeration.php	Attaches workflows to content entity types and their bundles.
ContentModerationAccessTest		class	Drupal\Tests\content_moderation\Kernel	core/modules/content_moderation/tests/src/Kernel/ContentModerationAccessTest.php	Tests content moderation access.
ContentModerationAdminPathEntityConverterLanguageTest		class	Drupal\Tests\content_moderation\Functional	core/modules/content_moderation/tests/src/Functional/ContentModerationAdminPathEntityConverterLanguageTest.php	Test administration path based entity conversion when moderation enabled.
ContentModerationConfigureEntityTypesForm		class	Drupal\content_moderation\Form	core/modules/content_moderation/src/Form/ContentModerationConfigureEntityTypesForm.php	The form for editing entity types associated with a workflow.			1
ContentModerationConfigureForm		class	Drupal\content_moderation\Form	core/modules/content_moderation/src/Form/ContentModerationConfigureForm.php	The content moderation WorkflowType configuration form.
ContentModerationInterface		interface	Drupal\content_moderation\Plugin\WorkflowType	core/modules/content_moderation/src/Plugin/WorkflowType/ContentModerationInterface.php	Interface for ContentModeration WorkflowType plugin.	1
ContentModerationPermissionsTest		class	Drupal\Tests\content_moderation\Kernel	core/modules/content_moderation/tests/src/Kernel/ContentModerationPermissionsTest.php	Test to ensure content moderation permissions are generated correctly.
ContentModerationRouteSubscriber		class	Drupal\content_moderation\Routing	core/modules/content_moderation/src/Routing/ContentModerationRouteSubscriber.php	Subscriber for moderated revisionable entity forms.		1	2
ContentModerationRouteSubscriberTest		class	Drupal\Tests\content_moderation\Unit	core/modules/content_moderation/tests/src/Unit/ContentModerationRouteSubscriberTest.php	@coversDefaultClass \Drupal\content_moderation\Routing\ContentModerationRouteSubscriber
ContentModerationState		class	Drupal\content_moderation	core/modules/content_moderation/src/ContentModerationState.php	A value object representing a workflow state for content moderation.		2
ContentModerationState		class	Drupal\content_moderation\Entity	core/modules/content_moderation/src/Entity/ContentModerationState.php	Defines the Content moderation state entity.		4
ContentModerationStateAccessControlHandler		class	Drupal\content_moderation	core/modules/content_moderation/src/ContentModerationStateAccessControlHandler.php	The access control handler for the content_moderation_state entity type.
ContentModerationStateAccessControlHandlerTest		class	Drupal\Tests\content_moderation\Kernel	core/modules/content_moderation/tests/src/Kernel/ContentModerationStateAccessControlHandlerTest.php	@coversDefaultClass \Drupal\content_moderation\ContentModerationStateAccessControlHandler @group content_moderation
ContentModerationStateForm		class	Drupal\content_moderation\Form	core/modules/content_moderation/src/Form/ContentModerationStateForm.php	The content moderation state form.
ContentModerationStateFormatter		class	Drupal\content_moderation\Plugin\Field\FieldFormatter	core/modules/content_moderation/src/Plugin/Field/FieldFormatter/ContentModerationStateFormatter.php	Plugin implementation of the 'content_moderation_state' formatter.
ContentModerationStateInterface		interface	Drupal\content_moderation\Entity	core/modules/content_moderation/src/Entity/ContentModerationStateInterface.php	An interface for Content moderation state entity.	1	1
ContentModerationStateResourceTest		class	Drupal\Tests\content_moderation\Kernel	core/modules/content_moderation/tests/src/Kernel/ContentModerationStateResourceTest.php	@group content_moderation
ContentModerationStateStorageSchema		class	Drupal\content_moderation	core/modules/content_moderation/src/ContentModerationStateStorageSchema.php	Defines the content moderation state schema handler.
ContentModerationStateStorageSchemaTest		class	Drupal\Tests\content_moderation\Kernel	core/modules/content_moderation/tests/src/Kernel/ContentModerationStateStorageSchemaTest.php	Test the ContentModerationState storage schema.
ContentModerationStateTest		class	Drupal\Tests\content_moderation\Kernel	core/modules/content_moderation/tests/src/Kernel/ContentModerationStateTest.php	Tests links between a content entity and a content_moderation_state entity.	1
ContentModerationSyncingTest		class	Drupal\Tests\content_moderation\Kernel	core/modules/content_moderation/tests/src/Kernel/ContentModerationSyncingTest.php	Test content moderation when an entity is marked as 'syncing'.
ContentModerationTest		class	Drupal\Tests\media_library\FunctionalJavascript	core/modules/media_library/tests/src/FunctionalJavascript/ContentModerationTest.php	Tests media library integration with content moderation.
ContentModerationTestTrait		trait	Drupal\Tests\content_moderation\Traits	core/modules/content_moderation/tests/src/Traits/ContentModerationTestTrait.php	Trait ContentModerationTestTraint.		37
ContentModerationUpdateTest		class	Drupal\Tests\content_moderation\Functional\Update	core/modules/content_moderation/tests/src/Functional/Update/ContentModerationUpdateTest.php	Tests that content moderation settings are updated during database updates.

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