Classes, traits, and interfaces - 9.5.x - drupal

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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
EntityFormModeAddForm class Drupal\field_ui\Form core/modules/field_ui/src/Form/EntityFormModeAddForm.php Provides the add form for entity display modes.
EntityFormModeHalJsonAnonTest class Drupal\Tests\hal\Functional\Core core/modules/hal/tests/src/Functional/Core/EntityFormModeHalJsonAnonTest.php @group hal @group legacy
EntityFormModeHalJsonBasicAuthTest class Drupal\Tests\hal\Functional\Core core/modules/hal/tests/src/Functional/Core/EntityFormModeHalJsonBasicAuthTest.php @group hal @group legacy
EntityFormModeHalJsonCookieTest class Drupal\Tests\hal\Functional\Core core/modules/hal/tests/src/Functional/Core/EntityFormModeHalJsonCookieTest.php @group hal @group legacy
EntityFormModeInterface interface Drupal\Core\Entity core/lib/Drupal/Core/Entity/EntityFormModeInterface.php Provides an interface defining an entity form mode entity type. 1 2
EntityFormModeJsonAnonTest class Drupal\FunctionalTests\Rest core/tests/Drupal/FunctionalTests/Rest/EntityFormModeJsonAnonTest.php @group rest
EntityFormModeJsonBasicAuthTest class Drupal\FunctionalTests\Rest core/tests/Drupal/FunctionalTests/Rest/EntityFormModeJsonBasicAuthTest.php @group rest
EntityFormModeJsonCookieTest class Drupal\FunctionalTests\Rest core/tests/Drupal/FunctionalTests/Rest/EntityFormModeJsonCookieTest.php @group rest
EntityFormModeListBuilder class Drupal\field_ui core/modules/field_ui/src/EntityFormModeListBuilder.php Defines a class to build a listing of form mode entities.
EntityFormModeResourceTestBase abstract class Drupal\FunctionalTests\Rest core/tests/Drupal/FunctionalTests/Rest/EntityFormModeResourceTestBase.php 9 3
EntityFormModeTest class Drupal\Tests\jsonapi\Functional core/modules/jsonapi/tests/src/Functional/EntityFormModeTest.php JSON:API integration test for the "EntityFormMode" config entity type.
EntityFormModeXmlAnonTest class Drupal\FunctionalTests\Rest core/tests/Drupal/FunctionalTests/Rest/EntityFormModeXmlAnonTest.php @group rest
EntityFormModeXmlBasicAuthTest class Drupal\FunctionalTests\Rest core/tests/Drupal/FunctionalTests/Rest/EntityFormModeXmlBasicAuthTest.php @group rest
EntityFormModeXmlCookieTest class Drupal\FunctionalTests\Rest core/tests/Drupal/FunctionalTests/Rest/EntityFormModeXmlCookieTest.php @group rest
EntityFormTest class Drupal\Tests\Core\Entity core/tests/Drupal/Tests/Core/Entity/EntityFormTest.php @coversDefaultClass \Drupal\Core\Entity\EntityForm @group Entity
EntityFormTest class Drupal\Tests\system\Functional\Entity core/modules/system/tests/src/Functional/Entity/EntityFormTest.php Tests the entity form.
EntityHandlerBase abstract class Drupal\Core\Entity core/lib/Drupal/Core/Entity/EntityHandlerBase.php Provides a base class for entity handlers. 7 1
EntityHandlerInterface interface Drupal\Core\Entity core/lib/Drupal/Core/Entity/EntityHandlerInterface.php Defines an interface for entity handlers. 16 13
EntityHasFieldConstraint class Drupal\Core\Entity\Plugin\Validation\Constraint core/lib/Drupal/Core/Entity/Plugin/Validation/Constraint/EntityHasFieldConstraint.php Checks if a value is an entity that has a specific field.
EntityHasFieldConstraintValidator class Drupal\Core\Entity\Plugin\Validation\Constraint core/lib/Drupal/Core/Entity/Plugin/Validation/Constraint/EntityHasFieldConstraintValidator.php Validates the EntityHasField constraint.
EntityHasFieldConstraintValidatorTest class Drupal\KernelTests\Core\Entity core/tests/Drupal/KernelTests/Core/Entity/EntityHasFieldConstraintValidatorTest.php @covers \Drupal\Core\Entity\Plugin\Validation\Constraint\EntityHasFieldConstraintValidator
EntityImageStyle class Drupal\image\Plugin\migrate\destination core/modules/image/src/Plugin/migrate/destination/EntityImageStyle.php Entity image style destination.
EntityInterface interface Drupal\Core\Entity core/lib/Drupal/Core/Entity/EntityInterface.php Defines a common interface for all entity objects. 11 305
EntityKernelTestBase abstract class Drupal\KernelTests\Core\Entity core/tests/Drupal/KernelTests/Core/Entity/EntityKernelTestBase.php Defines an abstract test base for entity kernel tests. 81 41
EntityKernelTestBaseTest class Drupal\KernelTests\Core\Entity core/tests/Drupal/KernelTests/Core/Entity/EntityKernelTestBaseTest.php @covers \Drupal\KernelTests\Core\Entity\EntityKernelTestBase
EntityKeysTest class Drupal\KernelTests\Core\Entity core/tests/Drupal/KernelTests/Core/Entity/EntityKeysTest.php Test the behavior of entity keys.
EntityLabel class Drupal\views\Plugin\views\field core/modules/views/src/Plugin/views/field/EntityLabel.php Field handler to display entity label optionally linked to entity page.
EntityLanguageTestBase abstract class Drupal\KernelTests\Core\Entity core/tests/Drupal/KernelTests/Core/Entity/EntityLanguageTestBase.php Base class for language-aware entity tests. 3
EntityLastInstalledSchemaRepository class Drupal\Core\Entity core/lib/Drupal/Core/Entity/EntityLastInstalledSchemaRepository.php Provides a repository for installed entity definitions. 2
EntityLastInstalledSchemaRepositoryInterface interface Drupal\Core\Entity core/lib/Drupal/Core/Entity/EntityLastInstalledSchemaRepositoryInterface.php Provides an interface for an installed entity definition repository. 1 7
EntityLink class Drupal\views\Plugin\views\field core/modules/views/src/Plugin/views/field/EntityLink.php Field handler to present a link to an entity. 3 1
EntityLink class Drupal\comment\Plugin\views\field core/modules/comment/src/Plugin/views/field/EntityLink.php Handler for showing comment module's entity links.
EntityLinkDelete class Drupal\views\Plugin\views\field core/modules/views/src/Plugin/views/field/EntityLinkDelete.php Field handler to present a link to delete an entity.
EntityLinkEdit class Drupal\views\Plugin\views\field core/modules/views/src/Plugin/views/field/EntityLinkEdit.php Field handler to present a link to edit an entity.
EntityLinkTest class Drupal\Tests\Core\Entity core/tests/Drupal/Tests/Core/Entity/EntityLinkTest.php @coversDefaultClass \Drupal\Core\Entity\EntityBase @group Entity
EntityListBuilder class Drupal\Core\Entity core/lib/Drupal/Core/Entity/EntityListBuilder.php Defines a generic implementation to build a listing of entities. 8 10
EntityListBuilderInterface interface Drupal\Core\Entity core/lib/Drupal/Core/Entity/EntityListBuilderInterface.php Defines an interface to build entity listings. 2 1
EntityListBuilderTest class Drupal\Tests\Core\Entity core/tests/Drupal/Tests/Core/Entity/EntityListBuilderTest.php @coversDefaultClass \Drupal\Core\Entity\EntityListBuilder @group Entity
EntityListBuilderTest class Drupal\Tests\system\Functional\Entity core/modules/system/tests/src/Functional/Entity/EntityListBuilderTest.php Tests entity list builder functionality.
EntityListController class Drupal\Core\Entity\Controller core/lib/Drupal/Core/Entity/Controller/EntityListController.php Defines a generic controller to list entities. 2 2
EntityLoadByUuidTest class Drupal\KernelTests\Core\Entity core/tests/Drupal/KernelTests/Core/Entity/EntityLoadByUuidTest.php Tests loading entities by UUID.
EntityMalformedException class Drupal\Core\Entity core/lib/Drupal/Core/Entity/EntityMalformedException.php Defines an exception thrown when a malformed entity is passed. 10
EntityModerationForm class Drupal\content_moderation\Form core/modules/content_moderation/src/Form/EntityModerationForm.php The EntityModerationForm provides a simple UI for changing moderation state. 1
EntityModerationRouteProvider class Drupal\content_moderation\Entity\Routing core/modules/content_moderation/src/Entity/Routing/EntityModerationRouteProvider.php Dynamic route provider for the Content moderation module. 1
EntityNodeType class Drupal\node\Plugin\migrate\destination core/modules/node/src/Plugin/migrate/destination/EntityNodeType.php Plugin annotation @MigrateDestination( id = "entity:node_type" )
EntityNonRevisionableTranslatableFieldTest class Drupal\KernelTests\Core\Entity core/tests/Drupal/KernelTests/Core/Entity/EntityNonRevisionableTranslatableFieldTest.php Tests translating a non-revisionable field.
EntityNormalizer class Drupal\serialization\Normalizer core/modules/serialization/src/Normalizer/EntityNormalizer.php Normalizes/denormalizes Drupal entity objects into an array structure. 2 1 2
EntityNormalizerTest class Drupal\Tests\serialization\Unit\Normalizer core/modules/serialization/tests/src/Unit/Normalizer/EntityNormalizerTest.php @coversDefaultClass \Drupal\serialization\Normalizer\EntityNormalizer @group serialization
EntityOperations class Drupal\views\Plugin\views\field core/modules/views/src/Plugin/views/field/EntityOperations.php Renders all operations links for an entity. 1
EntityOperations class Drupal\content_moderation core/modules/content_moderation/src/EntityOperations.php Defines a class for reacting to entity events. 1

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