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
FeedXmlAnonTest		class	Drupal\Tests\aggregator\Functional\Rest	core/modules/aggregator/tests/src/Functional/Rest/FeedXmlAnonTest.php	@group rest
FeedXmlBasicAuthTest		class	Drupal\Tests\aggregator\Functional\Rest	core/modules/aggregator/tests/src/Functional/Rest/FeedXmlBasicAuthTest.php	@group rest
FeedXmlCookieTest		class	Drupal\Tests\aggregator\Functional\Rest	core/modules/aggregator/tests/src/Functional/Rest/FeedXmlCookieTest.php	@group rest
FetcherInterface		interface	Drupal\aggregator\Plugin	core/modules/aggregator/src/Plugin/FetcherInterface.php	Defines an interface for aggregator fetcher implementations.	2	2
FetchTest		class	Drupal\KernelTests\Core\Database	core/tests/Drupal/KernelTests/Core/Database/FetchTest.php	Tests the Database system's various fetch capabilities.
Fid		class	Drupal\file\Plugin\views\argument	core/modules/file/src/Plugin/views/argument/Fid.php	Argument handler to accept multiple file ids.
Fid		class	Drupal\aggregator\Plugin\views\argument	core/modules/aggregator/src/Plugin/views/argument/Fid.php	Argument handler to accept an aggregator feed id.
Field	in drupal:8.3.0 and is removed from drupal:9.0.0. Use \Drupal\views\Plugin\views\field\EntityField instead.	class	Drupal\views\Plugin\views\field	core/modules/views/src/Plugin/views/field/Field.php	A stub class to provide backward compatibility for EntityField.
Field		class	Drupal\field\Plugin\migrate\source\d6	core/modules/field/src/Plugin/migrate/source/d6/Field.php	Drupal 6 field source from database.	1
Field		class	Drupal\field\Plugin\migrate\source\d7	core/modules/field/src/Plugin/migrate/source/d7/Field.php	Drupal 7 field source from database.	1
FieldableEntity		abstract class	Drupal\migrate_drupal\Plugin\migrate\source\d7	core/modules/migrate_drupal/src/Plugin/migrate/source/d7/FieldableEntity.php	Base class for D7 source plugins which need to collect field values from the Field API.	8	8
FieldableEntityDefinitionUpdateTest		class	Drupal\KernelTests\Core\Entity	core/tests/Drupal/KernelTests/Core/Entity/FieldableEntityDefinitionUpdateTest.php	Tests EntityDefinitionUpdateManager's fieldable entity update functionality.
FieldableEntityInterface		interface	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/FieldableEntityInterface.php	Interface for entities having fields.	1	92
FieldableEntityNormalizerTrait		trait	Drupal\serialization\Normalizer	core/modules/serialization/src/Normalizer/FieldableEntityNormalizerTrait.php	A trait for providing fieldable entity normalization/denormalization methods.		2
FieldableEntityStorageInterface		interface	Drupal\Core\Entity	core/lib/Drupal/Core/Entity/FieldableEntityStorageInterface.php	A storage that supports entity types with field definitions.	1	3
FieldAccessTest		class	Drupal\KernelTests\Core\Field	core/tests/Drupal/KernelTests/Core/Field/FieldAccessTest.php	Tests Field level access hooks.
FieldAccessTest		class	Drupal\Tests\field\Functional	core/modules/field/tests/src/Functional/FieldAccessTest.php	Tests Field access.
FieldApiDataTest		class	Drupal\Tests\views\Kernel	core/modules/views/tests/src/Kernel/FieldApiDataTest.php	Tests the Field Views data.
FieldAPIHandlerTrait		trait	Drupal\views	core/modules/views/src/FieldAPIHandlerTrait.php	A trait containing helper methods for field definitions.		7
FieldAttachOtherTest		class	Drupal\Tests\field\Kernel	core/modules/field/tests/src/Kernel/FieldAttachOtherTest.php	Tests other Field API functions.
FieldAttachStorageTest		class	Drupal\Tests\field\Kernel	core/modules/field/tests/src/Kernel/FieldAttachStorageTest.php	Tests storage-related Field Attach API functions.
FieldBlock		class	Drupal\layout_builder\Plugin\Block	core/modules/layout_builder/src/Plugin/Block/FieldBlock.php	Provides a block that renders a field from an entity.	1	2
FieldBlock		class	Drupal\layout_builder_fieldblock_test\Plugin\Block	core/modules/layout_builder/tests/modules/layout_builder_fieldblock_test/src/Plugin/Block/FieldBlock.php	Provides test field block to test with Block UI.
FieldBlockDeriver		class	Drupal\layout_builder\Plugin\Derivative	core/modules/layout_builder/src/Plugin/Derivative/FieldBlockDeriver.php	Provides entity field block definitions for every field.
FieldBlockTest		class	Drupal\Tests\layout_builder\FunctionalJavascript	core/modules/layout_builder/tests/src/FunctionalJavascript/FieldBlockTest.php	@coversDefaultClass \Drupal\layout_builder\Plugin\Block\FieldBlock
FieldBlockTest		class	Drupal\Tests\layout_builder\Kernel	core/modules/layout_builder/tests/src/Kernel/FieldBlockTest.php	@coversDefaultClass \Drupal\layout_builder\Plugin\Block\FieldBlock @group Field
FieldBooleanTest		class	Drupal\Tests\views\Kernel\Handler	core/modules/views/tests/src/Kernel/Handler/FieldBooleanTest.php	Tests the core Drupal\views\Plugin\views\field\Boolean handler.
FieldConfig		class	Drupal\field\Entity	core/modules/field/src/Entity/FieldConfig.php	Defines the Field entity.		294
FieldConfigAccessControlHandler		class	Drupal\field	core/modules/field/src/FieldConfigAccessControlHandler.php	Defines the access control handler for the field config entity type.		1
FieldConfigAccessControlHandlerTest		class	Drupal\Tests\field\Unit	core/modules/field/tests/src/Unit/FieldConfigAccessControlHandlerTest.php	Tests the field config access controller.
FieldConfigBase		abstract class	Drupal\Core\Field	core/lib/Drupal/Core/Field/FieldConfigBase.php	Base class for configurable field definitions.	2	2
FieldConfigDeleteForm		class	Drupal\field_ui\Form	core/modules/field_ui/src/Form/FieldConfigDeleteForm.php	Provides a form for removing a field from a bundle.
FieldConfigEditForm		class	Drupal\field_ui\Form	core/modules/field_ui/src/Form/FieldConfigEditForm.php	Provides a form for the field settings form.
FieldConfigEntityUnitTest		class	Drupal\Tests\field\Unit	core/modules/field/tests/src/Unit/FieldConfigEntityUnitTest.php	@coversDefaultClass \Drupal\field\Entity\FieldConfig @group field
FieldConfigHalJsonAnonTest		class	Drupal\Tests\field\Functional\Hal	core/modules/field/tests/src/Functional/Hal/FieldConfigHalJsonAnonTest.php	@group hal
FieldConfigHalJsonBasicAuthTest		class	Drupal\Tests\field\Functional\Hal	core/modules/field/tests/src/Functional/Hal/FieldConfigHalJsonBasicAuthTest.php	@group hal
FieldConfigHalJsonCookieTest		class	Drupal\Tests\field\Functional\Hal	core/modules/field/tests/src/Functional/Hal/FieldConfigHalJsonCookieTest.php	@group hal
FieldConfigInterface		interface	Drupal\Core\Field	core/lib/Drupal/Core/Field/FieldConfigInterface.php	Defines an interface for configurable field definitions.	1	4
FieldConfigInterface		interface	Drupal\field	core/modules/field/src/FieldConfigInterface.php	Provides an interface defining a field entity.	1	15
FieldConfigJsonAnonTest		class	Drupal\Tests\field\Functional\Rest	core/modules/field/tests/src/Functional/Rest/FieldConfigJsonAnonTest.php	@group rest
FieldConfigJsonBasicAuthTest		class	Drupal\Tests\field\Functional\Rest	core/modules/field/tests/src/Functional/Rest/FieldConfigJsonBasicAuthTest.php	@group rest
FieldConfigJsonCookieTest		class	Drupal\Tests\field\Functional\Rest	core/modules/field/tests/src/Functional/Rest/FieldConfigJsonCookieTest.php	@group rest
FieldConfigListBuilder		class	Drupal\field_ui	core/modules/field_ui/src/FieldConfigListBuilder.php	Provides lists of field config entities.
FieldConfigListController		class	Drupal\field_ui\Controller	core/modules/field_ui/src/Controller/FieldConfigListController.php	Defines a controller to list field instances.
FieldConfigResourceTestBase	in drupal:8.6.0 and is removed from drupal:9.0.0. Use Drupal\Tests\field\Functional\Rest\FieldConfigResourceTestBase instead.	abstract class	Drupal\Tests\rest\Functional\EntityResource\FieldConfig	core/modules/rest/tests/src/Functional/EntityResource/FieldConfig/FieldConfigResourceTestBase.php
FieldConfigResourceTestBase		abstract class	Drupal\Tests\field\Functional\Rest	core/modules/field/tests/src/Functional/Rest/FieldConfigResourceTestBase.php		10	4
FieldConfigStorage		class	Drupal\field	core/modules/field/src/FieldConfigStorage.php	Storage handler for field config.
FieldConfigStorageBase		abstract class	Drupal\Core\Field	core/lib/Drupal/Core/Field/FieldConfigStorageBase.php	Base storage class for field config entities.	2	1
FieldConfigTest		class	Drupal\Tests\jsonapi\Functional	core/modules/jsonapi/tests/src/Functional/FieldConfigTest.php	JSON:API integration test for the "FieldConfig" config entity type.
FieldConfigXmlAnonTest		class	Drupal\Tests\field\Functional\Rest	core/modules/field/tests/src/Functional/Rest/FieldConfigXmlAnonTest.php	@group rest

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