Classes, traits, and interfaces - 10.3.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 1518

Name	Deprecated	Object type	Namespace	File name	Summary	Direct uses	Use statements	Strings
FieldOrLanguageJoinTest		class	Drupal\Tests\views\Kernel\Plugin	core/modules/views/tests/src/Kernel/Plugin/FieldOrLanguageJoinTest.php	Tests the "field OR language" join plugin.
FieldPluginBase		abstract class	Drupal\views\Plugin\views\field	core/modules/views/src/Plugin/views/field/FieldPluginBase.php	Base class for views fields.	34	13
FieldPluginBase		abstract class	Drupal\migrate_drupal\Plugin\migrate\field	core/modules/migrate_drupal/src/Plugin/migrate/field/FieldPluginBase.php	The base class for all field plugins.	18	17
FieldPluginBaseTest		class	Drupal\Tests\views\Unit\Plugin\field	core/modules/views/tests/src/Unit/Plugin/field/FieldPluginBaseTest.php	@coversDefaultClass \Drupal\views\Plugin\views\field\FieldPluginBase[[api-linebreak]] @group views
FieldPluginBaseTestField		class	Drupal\Tests\views\Unit\Plugin\field	core/modules/views/tests/src/Unit/Plugin/field/FieldPluginBaseTest.php
FieldRenderedEntityTest		class	Drupal\Tests\views\Kernel\Handler	core/modules/views/tests/src/Kernel/Handler/FieldRenderedEntityTest.php	Tests the core Drupal\views\Plugin\views\field\RenderedEntity handler.
FieldRenderedEntityTranslationTest		class	Drupal\Tests\views\Functional\Entity	core/modules/views/tests/src/Functional/Entity/FieldRenderedEntityTranslationTest.php	Tests the rendering of the 'rendered_entity' field and translations.
FieldResolver		class	Drupal\jsonapi\Context	core/modules/jsonapi/src/Context/FieldResolver.php	A service that evaluates external path expressions against Drupal fields.		4	2
FieldResolverTest		class	Drupal\Tests\jsonapi\Kernel\Context	core/modules/jsonapi/tests/src/Kernel/Context/FieldResolverTest.php	@coversDefaultClass \Drupal\jsonapi\Context\FieldResolver[[api-linebreak]] @group jsonapi @group #slow
FieldReuseAccessCheck		class	Drupal\field_ui\Access	core/modules/field_ui/src/Access/FieldReuseAccessCheck.php	Defines an access check for the reuse existing fields form.			2
Fields		class	Drupal\views\Plugin\views\row	core/modules/views/src/Plugin/views/row/Fields.php	The basic 'fields' row plugin.	1	2
FieldSelfTokensTest		class	Drupal\Tests\views\Kernel\Handler	core/modules/views/tests/src/Kernel/Handler/FieldSelfTokensTest.php	Tests token escaping in the EntityField handler.
Fieldset		class	Drupal\Core\Render\Element	core/lib/Drupal/Core/Render/Element/Fieldset.php	Provides a render element for a group of form elements.	1
FieldSettings		class	Drupal\field\Plugin\migrate\process\d6	core/modules/field/src/Plugin/migrate/process/d6/FieldSettings.php	Get the field settings.		1
FieldSettings		class	Drupal\field\Plugin\migrate\process\d7	core/modules/field/src/Plugin/migrate/process/d7/FieldSettings.php	#[MigrateProcess('d7_field_settings')]		1
FieldSettingsTest		class	Drupal\Tests\field\Unit\Plugin\migrate\process\d6	core/modules/field/tests/src/Unit/Plugin/migrate/process/d6/FieldSettingsTest.php	@coversDefaultClass \Drupal\field\Plugin\migrate\process\d6\FieldSettings[[api-linebreak]] @group field
FieldSettingsTest		class	Drupal\Tests\field\Unit\Plugin\migrate\process\d7	core/modules/field/tests/src/Unit/Plugin/migrate/process/d7/FieldSettingsTest.php	@coversDefaultClass \Drupal\field\Plugin\migrate\process\d7\FieldSettings[[api-linebreak]] @group field
FieldSettingsTest		class	Drupal\KernelTests\Core\Field	core/tests/Drupal/KernelTests/Core/Field/FieldSettingsTest.php	Tests field settings methods on field definition structures.
FieldsOverlapException		class	Drupal\Core\Database\Query	core/lib/Drupal/Core/Database/Query/FieldsOverlapException.php	Exception thrown if an insert query specifies a field twice.
FieldSqlStorageTest		class	Drupal\KernelTests\Core\Entity	core/tests/Drupal/KernelTests/Core/Entity/FieldSqlStorageTest.php	Tests Field SQL Storage .
FieldStorageAddForm		class	Drupal\field_ui\Form	core/modules/field_ui/src/Form/FieldStorageAddForm.php	Provides a form for the "field storage" add page.
FieldStorageConfig		class	Drupal\field\Entity	core/modules/field/src/Entity/FieldStorageConfig.php	Defines the Field storage configuration entity.		312
FieldStorageConfigAccessControlHandler		class	Drupal\field	core/modules/field/src/FieldStorageConfigAccessControlHandler.php	Defines the access control handler for the field storage config entity type.		1
FieldStorageConfigAccessControlHandlerTest		class	Drupal\Tests\field\Unit	core/modules/field/tests/src/Unit/FieldStorageConfigAccessControlHandlerTest.php	Tests the field storage config access controller.	1
FieldStorageConfigEditForm		class	Drupal\field_ui\Form	core/modules/field_ui/src/Form/FieldStorageConfigEditForm.php	Provides a form for the "field storage" edit page.		2
FieldStorageConfigEntityUnitTest		class	Drupal\Tests\field\Unit	core/modules/field/tests/src/Unit/FieldStorageConfigEntityUnitTest.php	@coversDefaultClass \Drupal\field\Entity\FieldStorageConfig[[api-linebreak]]
FieldStorageConfigInterface		interface	Drupal\field	core/modules/field/src/FieldStorageConfigInterface.php	Provides an interface defining a field storage entity.	1	24
FieldStorageConfigJsonAnonTest		class	Drupal\Tests\field\Functional\Rest	core/modules/field/tests/src/Functional/Rest/FieldStorageConfigJsonAnonTest.php	@group rest
FieldStorageConfigJsonBasicAuthTest		class	Drupal\Tests\field\Functional\Rest	core/modules/field/tests/src/Functional/Rest/FieldStorageConfigJsonBasicAuthTest.php	@group rest
FieldStorageConfigJsonCookieTest		class	Drupal\Tests\field\Functional\Rest	core/modules/field/tests/src/Functional/Rest/FieldStorageConfigJsonCookieTest.php	@group rest
FieldStorageConfigListBuilder		class	Drupal\field_ui	core/modules/field_ui/src/FieldStorageConfigListBuilder.php	Defines a class to build a listing of fields.
FieldStorageConfigResourceTestBase		abstract class	Drupal\Tests\field\Functional\Rest	core/modules/field/tests/src/Functional/Rest/FieldStorageConfigResourceTestBase.php		6
FieldStorageConfigStorage		class	Drupal\field	core/modules/field/src/FieldStorageConfigStorage.php	Storage handler for "field storage" configuration entities.
FieldStorageConfigTest		class	Drupal\Tests\jsonapi\Functional	core/modules/jsonapi/tests/src/Functional/FieldStorageConfigTest.php	JSON:API integration test for the "FieldStorageConfig" config entity type.
FieldStorageConfigUpdateForbiddenException		class	Drupal\field	core/modules/field/src/FieldStorageConfigUpdateForbiddenException.php	Exception class thrown by hook_field_storage_config_update_forbid().
FieldStorageConfigValidationTest		class	Drupal\Tests\field\Kernel\Entity	core/modules/field/tests/src/Kernel/Entity/FieldStorageConfigValidationTest.php	Tests validation of field_storage_config entities.
FieldStorageConfigXmlAnonTest		class	Drupal\Tests\field\Functional\Rest	core/modules/field/tests/src/Functional/Rest/FieldStorageConfigXmlAnonTest.php	@group rest
FieldStorageConfigXmlBasicAuthTest		class	Drupal\Tests\field\Functional\Rest	core/modules/field/tests/src/Functional/Rest/FieldStorageConfigXmlBasicAuthTest.php	@group rest
FieldStorageConfigXmlCookieTest		class	Drupal\Tests\field\Functional\Rest	core/modules/field/tests/src/Functional/Rest/FieldStorageConfigXmlCookieTest.php	@group rest
FieldStorageCreationTrait		trait	Drupal\field_ui\Form	core/modules/field_ui/src/Form/FieldStorageCreationTrait.php	Provides common functionality for adding or re-using a field.
FieldStorageCrudTest		class	Drupal\Tests\field\Kernel	core/modules/field/tests/src/Kernel/FieldStorageCrudTest.php	Tests field storage create, read, update, and delete.
FieldStorageDefinition		class	Drupal\entity_test	core/modules/system/tests/modules/entity_test/src/FieldStorageDefinition.php	A custom field storage definition class.		5
FieldStorageDefinitionEvent		class	Drupal\Core\Field	core/lib/Drupal/Core/Field/FieldStorageDefinitionEvent.php	Defines a base class for all field storage definition events.
FieldStorageDefinitionEvents		final class	Drupal\Core\Field	core/lib/Drupal/Core/Field/FieldStorageDefinitionEvents.php	Contains all events thrown while handling field storage definitions.		2
FieldStorageDefinitionEventSubscriberTrait		trait	Drupal\Core\Field	core/lib/Drupal/Core/Field/FieldStorageDefinitionEventSubscriberTrait.php	Helper methods for FieldStorageDefinitionListenerInterface.		1
FieldStorageDefinitionInterface		interface	Drupal\Core\Field	core/lib/Drupal/Core/Field/FieldStorageDefinitionInterface.php	Defines an interface for entity field storage definitions.	3	171
FieldStorageDefinitionListener		class	Drupal\Core\Field	core/lib/Drupal/Core/Field/FieldStorageDefinitionListener.php	Reacts to field storage definition CRUD on behalf of the Entity system.			2
FieldStorageDefinitionListenerInterface		interface	Drupal\Core\Field	core/lib/Drupal/Core/Field/FieldStorageDefinitionListenerInterface.php	Defines an interface for reacting to field storage definition creation, deletion, and updates.	4	4
FieldStorageDefinitionUpdateForbiddenException		class	Drupal\Core\Entity\Exception	core/lib/Drupal/Core/Entity/Exception/FieldStorageDefinitionUpdateForbiddenException.php	Exception thrown when a storage definition update is forbidden.		8
FieldStorageReuseForm		class	Drupal\field_ui\Form	core/modules/field_ui/src/Form/FieldStorageReuseForm.php	Provides a form for the "field storage" add page.

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