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
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.		2
FieldConfigEditFormTest		class	Drupal\Tests\field_ui\Unit	core/modules/field_ui/tests/src/Unit/FieldConfigEditFormTest.php	@coversDefaultClass \Drupal\field_ui\Form\FieldConfigEditForm[[api-linebreak]]
FieldConfigEntityUnitTest		class	Drupal\Tests\field\Unit	core/modules/field/tests/src/Unit/FieldConfigEntityUnitTest.php	@coversDefaultClass \Drupal\field\Entity\FieldConfig[[api-linebreak]] @group field
FieldConfigInterface		interface	Drupal\Core\Field	core/lib/Drupal/Core/Field/FieldConfigInterface.php	Defines an interface for configurable field definitions.	1	3
FieldConfigInterface		interface	Drupal\field	core/modules/field/src/FieldConfigInterface.php	Provides an interface defining a field entity.	1	21
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		abstract class	Drupal\Tests\field\Functional\Rest	core/modules/field/tests/src/Functional/Rest/FieldConfigResourceTestBase.php		6
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.
FieldConfigValidationTest		class	Drupal\Tests\field\Kernel\Entity	core/modules/field/tests/src/Kernel/Entity/FieldConfigValidationTest.php	Tests validation of field_config entities.
FieldConfigXmlAnonTest		class	Drupal\Tests\field\Functional\Rest	core/modules/field/tests/src/Functional/Rest/FieldConfigXmlAnonTest.php	@group rest
FieldConfigXmlBasicAuthTest		class	Drupal\Tests\field\Functional\Rest	core/modules/field/tests/src/Functional/Rest/FieldConfigXmlBasicAuthTest.php	@group rest
FieldConfigXmlCookieTest		class	Drupal\Tests\field\Functional\Rest	core/modules/field/tests/src/Functional/Rest/FieldConfigXmlCookieTest.php	@group rest
FieldCounterTest		class	Drupal\Tests\rest\Functional\Views	core/modules/rest/tests/src/Functional/Views/FieldCounterTest.php	Tests the display of counter field.
FieldCounterTest		class	Drupal\Tests\views\Kernel\Handler	core/modules/views/tests/src/Kernel/Handler/FieldCounterTest.php	Tests the Drupal\views\Plugin\views\field\Counter handler.
FieldCrudTest		class	Drupal\Tests\field\Kernel	core/modules/field/tests/src/Kernel/FieldCrudTest.php	Create field entities by attaching fields to entities.
FieldCustomTest		class	Drupal\Tests\views\Kernel\Handler	core/modules/views/tests/src/Kernel/Handler/FieldCustomTest.php	Tests the core Drupal\views\Plugin\views\field\Custom handler.
FieldDataCountTest		class	Drupal\Tests\field\Kernel	core/modules/field/tests/src/Kernel/FieldDataCountTest.php	Tests the count of field data records.
FieldDateTest		class	Drupal\Tests\views\Kernel\Handler	core/modules/views/tests/src/Kernel/Handler/FieldDateTest.php	Tests the core Drupal\views\Plugin\views\field\Date handler.
FieldDefaultValueCallbackProvider		class	Drupal\field_test	core/modules/field/tests/modules/field_test/src/FieldDefaultValueCallbackProvider.php	Helper class for \Drupal\Tests\field\Functional\FieldDefaultValueCallbackTest.
FieldDefaultValueCallbackTest		class	Drupal\Tests\field\Functional	core/modules/field/tests/src/Functional/FieldDefaultValueCallbackTest.php	Tests the default value callback.
FieldDefinition		class	Drupal\Core\Field	core/lib/Drupal/Core/Field/FieldDefinition.php	A class for defining entity field definitions.		5
FieldDefinitionIntegrityTest		class	Drupal\Tests\field\Kernel	core/modules/field/tests/src/Kernel/FieldDefinitionIntegrityTest.php	Tests the integrity of field API plugin definitions.
FieldDefinitionInterface		interface	Drupal\Core\Field	core/lib/Drupal/Core/Field/FieldDefinitionInterface.php	Defines an interface for entity field definitions.	5	133
FieldDefinitionListener		class	Drupal\Core\Field	core/lib/Drupal/Core/Field/FieldDefinitionListener.php	Reacts to field definition CRUD on behalf of the Entity system.		1	2
FieldDefinitionListenerInterface		interface	Drupal\Core\Field	core/lib/Drupal/Core/Field/FieldDefinitionListenerInterface.php	Defines an interface for reacting to field creation, deletion, and updates.	2	1
FieldDefinitionListenerTest		class	Drupal\Tests\Core\Field	core/tests/Drupal/Tests/Core/Field/FieldDefinitionListenerTest.php	@coversDefaultClass \Drupal\Core\Field\FieldDefinitionListener[[api-linebreak]] @group Field
FieldDefinitionTest		class	Drupal\Tests\Core\Entity	core/tests/Drupal/Tests/Core/Entity/FieldDefinitionTest.php	Unit test for the FieldDefinition class.
FieldDialogsTest		class	Drupal\Tests\views_ui\FunctionalJavascript	core/modules/views_ui/tests/src/FunctionalJavascript/FieldDialogsTest.php	Tests the fields dialogs.
FieldDiscovery		class	Drupal\migrate_drupal	core/modules/migrate_drupal/src/FieldDiscovery.php	Provides field discovery for Drupal 6 & 7 migrations.	1	1	2
FieldDiscoveryInterface		interface	Drupal\migrate_drupal	core/modules/migrate_drupal/src/FieldDiscoveryInterface.php	Provides field discovery for Drupal 6 & 7 migrations.	1	8
FieldDiscoveryTest		class	Drupal\Tests\migrate_drupal\Unit	core/modules/migrate_drupal/tests/src/Unit/FieldDiscoveryTest.php	Tests the FieldDiscovery Class.
FieldDiscoveryTest		class	Drupal\Tests\migrate_drupal\Kernel\d6	core/modules/migrate_drupal/tests/src/Kernel/d6/FieldDiscoveryTest.php	Tests FieldDiscovery service against Drupal 6.
FieldDiscoveryTest		class	Drupal\Tests\migrate_drupal\Kernel\d7	core/modules/migrate_drupal/tests/src/Kernel/d7/FieldDiscoveryTest.php	Test FieldDiscovery Service against Drupal 7.
FieldDiscoveryTestClass		class	Drupal\field_discovery_test	core/modules/migrate_drupal/tests/modules/field_discovery_test/src/FieldDiscoveryTestClass.php	A test class to expose protected methods.		4
FieldDiscoveryTestTrait		trait	Drupal\Tests\migrate_drupal\Traits	core/modules/migrate_drupal/tests/src/Traits/FieldDiscoveryTestTrait.php	Helper functions to test field discovery.		2
FieldDisplayTest		class	Drupal\Tests\field\Kernel	core/modules/field/tests/src/Kernel/FieldDisplayTest.php	Tests Field display.
FieldDropbuttonTest		class	Drupal\Tests\views\Kernel\Handler	core/modules/views/tests/src/Kernel/Handler/FieldDropbuttonTest.php	Tests the core Drupal\views\Plugin\views\field\Dropbutton handler.
FieldDropButtonTest		class	Drupal\Tests\views\Functional\Handler	core/modules/views/tests/src/Functional/Handler/FieldDropButtonTest.php	Tests the dropbutton field handler.
FieldEntityLinkBaseTest		class	Drupal\Tests\views\Functional\Handler	core/modules/views/tests/src/Functional/Handler/FieldEntityLinkBaseTest.php	Tests the core Drupal\views\Plugin\views\field\LinkBase handler.
FieldEntityLinkTest		class	Drupal\Tests\views\Kernel\Handler	core/modules/views/tests/src/Kernel/Handler/FieldEntityLinkTest.php	Tests the core Drupal\views\Plugin\views\field\EntityOperations handler.
FieldEntityOperationsTest		class	Drupal\Tests\views\Functional\Handler	core/modules/views/tests/src/Functional/Handler/FieldEntityOperationsTest.php	Tests the core Drupal\views\Plugin\views\field\EntityOperations handler.
FieldEntitySettingsTest		class	Drupal\Tests\field\Kernel\Entity	core/modules/field/tests/src/Kernel/Entity/FieldEntitySettingsTest.php	Tests the ways that field entities handle their settings.

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