Classes, traits, and interfaces - main - 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 1529

Name	Deprecated	Object type	Namespace	File name	Summary	Direct uses	Use statements	Strings
MaintenanceModeSubscriber		class	Drupal\user\EventSubscriber	core/modules/user/src/EventSubscriber/MaintenanceModeSubscriber.php	Maintenance mode subscriber to log out users.			2
MaintenanceThemeTest		class	Drupal\KernelTests\Core\Theme	core/tests/Drupal/KernelTests/Core/Theme/MaintenanceThemeTest.php	Tests themes and base themes are correctly loaded.
MaintenanceThemeUpdateRegistryTest		class	Drupal\Tests\system\Functional\Theme	core/modules/system/tests/src/Functional/Theme/MaintenanceThemeUpdateRegistryTest.php	Ensures theme update functions are registered for maintenance themes.
MakeUniqueBase		abstract class	Drupal\migrate\Plugin\migrate\process	core/modules/migrate/src/Plugin/migrate/process/MakeUniqueBase.php	This plugin ensures the source value is unique.	1
MakeUniqueEntityField		class	Drupal\migrate\Plugin\migrate\process	core/modules/migrate/src/Plugin/migrate/process/MakeUniqueEntityField.php	Ensures the source value is made unique against an entity field.		1
MakeUniqueEntityFieldTest		class	Drupal\Tests\migrate\Unit\process	core/modules/migrate/tests/src/Unit/process/MakeUniqueEntityFieldTest.php	Tests Drupal\migrate\Plugin\migrate\process\MakeUniqueEntityField.
ManagedFile		class	Drupal\file\Element	core/modules/file/src/Element/ManagedFile.php	Provides an AJAX/progress aware widget for uploading and saving a file.		2
ManagedFileElementHelper		class	Drupal\file\Upload	core/modules/file/src/Upload/ManagedFileElementHelper.php	Helper class for ManagedFile element form file uploads.		6
ManagedFileFidValidationTest		class	Drupal\Tests\file\Functional	core/modules/file/tests/src/Functional/ManagedFileFidValidationTest.php	Tests the file validation in the ManagedFile element for private files.
ManagedFileTest		class	Drupal\Tests\file\Kernel	core/modules/file/tests/src/Kernel/ManagedFileTest.php	Managed file element test.
ManageDisplayTest		class	Drupal\Tests\field_ui\FunctionalJavascript	core/modules/field_ui/tests/src/FunctionalJavascript/ManageDisplayTest.php	Tests the Field UI "Manage display" and "Manage form display" screens.
ManageDisplayTest		class	Drupal\Tests\field_ui\Functional	core/modules/field_ui/tests/src/Functional/ManageDisplayTest.php	Tests the Field UI "Manage display" and "Manage form display" screens.
ManagedStorage		final class	Drupal\Core\Config	core/lib/Drupal/Core/Config/ManagedStorage.php	The managed storage defers all the storage method calls to the manager.		1	2
ManagedStorageTest		class	Drupal\KernelTests\Core\Config\Storage	core/tests/Drupal/KernelTests/Core/Config/Storage/ManagedStorageTest.php	Tests ManagedStorage operations.
ManageFieldsFunctionalTest		class	Drupal\Tests\field_ui\Functional	core/modules/field_ui/tests/src/Functional/ManageFieldsFunctionalTest.php	Tests the Field UI "Manage fields" screen.
ManageFieldsFunctionalTestBase		abstract class	Drupal\Tests\field_ui\Functional	core/modules/field_ui/tests/src/Functional/ManageFieldsFunctionalTestBase.php	Tests the Field UI "Manage fields" screen.	3
ManageFieldsLifecycleTest		class	Drupal\Tests\field_ui\Functional	core/modules/field_ui/tests/src/Functional/ManageFieldsLifecycleTest.php	Tests the Field UI "Manage fields" screen.
ManageFieldsMultipleTypesTest		class	Drupal\Tests\field_ui\Functional	core/modules/field_ui/tests/src/Functional/ManageFieldsMultipleTypesTest.php	Tests the Field UI "Manage fields" screen.
ManageFieldsTest		class	Drupal\Tests\field_ui\FunctionalJavascript	core/modules/field_ui/tests/src/FunctionalJavascript/ManageFieldsTest.php	Tests the Field UI "Manage Fields" screens.
ManageFieldsTest		class	Drupal\Tests\field_ui\Functional	core/modules/field_ui/tests/src/Functional/ManageFieldsTest.php	Tests the Manage Display page of a fieldable entity type.
ManageFieldsTest		class	Drupal\Tests\field_ui\Kernel	core/modules/field_ui/tests/src/Kernel/ManageFieldsTest.php	Tests the Field UI "Manage fields" screen.
ManageGitIgnore		class	Drupal\Composer\Plugin\Scaffold	composer/Plugin/Scaffold/ManageGitIgnore.php	Manage the .gitignore file.
ManageGitIgnoreTest		class	Drupal\Tests\Composer\Plugin\Scaffold\Functional	core/tests/Drupal/Tests/Composer/Plugin/Scaffold/Functional/ManageGitIgnoreTest.php	Tests to see whether .gitignore files are correctly managed.
ManageOptions		class	Drupal\Composer\Plugin\Scaffold	composer/Plugin/Scaffold/ManageOptions.php	Per-project options from the 'extras' section of the composer.json file.
ManyAssetsLoadOrderTest		class	Drupal\KernelTests\Core\Libraries	core/tests/Drupal/KernelTests/Core/Libraries/ManyAssetsLoadOrderTest.php	Tests the loading of many weighted assets.
ManyAssetsLoadOrderTest		class	Drupal\FunctionalTests\Libraries	core/tests/Drupal/FunctionalTests/Libraries/ManyAssetsLoadOrderTest.php	Tests the loading of many weighted assets.
ManyAssetsTestController		class	Drupal\many_assets_test\Controller	core/modules/system/tests/modules/many_assets_test/src/Controller/ManyAssetsTestController.php	Provides a controller for testing asset loading order.
ManyAssetsTestHooks		class	Drupal\many_assets_test\Hook	core/modules/system/tests/modules/many_assets_test/src/Hook/ManyAssetsTestHooks.php	Hook implementations for many_assets_test.
ManyPlaceholderTest		class	Drupal\Tests\big_pipe\Unit\Render	core/modules/big_pipe/tests/src/Unit/Render/ManyPlaceholderTest.php	Tests Drupal\big_pipe\Render\BigPipe.
ManyToOne		class	Drupal\views\Plugin\views\filter	core/modules/views/src/Plugin/views/filter/ManyToOne.php	Complex filter to handle filtering for many to one relationships.	5	4
ManyToOne		class	Drupal\views\Plugin\views\argument	core/modules/views/src/Plugin/views/argument/ManyToOne.php	Argument handler for many to one relationships.	2	2
ManyToOneHelper		class	Drupal\views	core/modules/views/src/ManyToOneHelper.php	This many to one helper object is used on both arguments and filters.		3
Map		class	Drupal\Core\TypedData\Plugin\DataType	core/lib/Drupal/Core/TypedData/Plugin/DataType/Map.php	The "map" data type.	1	1
MapBaseFieldTest		class	Drupal\KernelTests\Core\Field	core/tests/Drupal/KernelTests/Core/Field/MapBaseFieldTest.php	Tests map base fields.
MapDataDefinition		class	Drupal\Core\TypedData	core/lib/Drupal/Core/TypedData/MapDataDefinition.php	A typed data definition class for defining maps.		13	1
MapDataNormalizerTest		class	Drupal\Tests\serialization\Kernel	core/modules/serialization/tests/src/Kernel/MapDataNormalizerTest.php	Tests Map Data Normalizer.
MapFieldItemList		class	Drupal\Core\Field	core/lib/Drupal/Core/Field/MapFieldItemList.php	Defines an item list class for map fields.		1
MapItem		class	Drupal\Core\Field\Plugin\Field\FieldType	core/lib/Drupal/Core/Field/Plugin/Field/FieldType/MapItem.php	Defines the 'map' entity field type.
MappedClass		class	Drupal\Tests\Component\Annotation\Doctrine\Ticket	core/tests/Drupal/Tests/Component/Annotation/Doctrine/Ticket/DCOM58Test.php	@Entity
MappedDiff		class	Drupal\Component\Diff	core/lib/Drupal/Component/Diff/MappedDiff.php	FIXME: bad name.	1
MapperExceptionInterface		interface	Drupal\Component\Plugin\Exception	core/lib/Drupal/Component/Plugin/Exception/MapperExceptionInterface.php	Base exception interface for grouping mapper exceptions.
MapperInterface		interface	Drupal\Component\Plugin\Mapper	core/lib/Drupal/Component/Plugin/Mapper/MapperInterface.php	Plugin mapper interface.	1	3
Mapping		class	Drupal\Core\Config\Schema	core/lib/Drupal/Core/Config/Schema/Mapping.php	Defines a mapping configuration element.		12	1
Mapping		abstract class	Drupal\views\Plugin\views\style	core/modules/views/src/Plugin/views/style/Mapping.php	Allows fields to be mapped to specific use cases.	1	1
MappingCollectionConstraint		class	Drupal\Core\Validation\Plugin\Validation\Constraint	core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/MappingCollectionConstraint.php	Checks that at least one of the given constraints is satisfied.		1
MappingCollectionConstrainTest		class	Drupal\KernelTests\Core\Validation	core/tests/Drupal/KernelTests/Core/Validation/MappingCollectionConstrainTest.php	Tests nested composite validation constraints.
MappingCollectionConstraintValidator		class	Drupal\Core\Validation\Plugin\Validation\Constraint	core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/MappingCollectionConstraintValidator.php	Validates the MappingCollection constraint.		1
MappingTest		class	Drupal\KernelTests\Config\Schema	core/tests/Drupal/KernelTests/Config/Schema/MappingTest.php	Tests Drupal\Core\Config\Schema\Mapping.
MappingTest		class	Drupal\views_test_data\Plugin\views\style	core/modules/views/tests/modules/views_test_data/src/Plugin/views/style/MappingTest.php	Provides a test plugin for the mapping style.
Marker		class	Drupal\Tests\Component\Annotation\Doctrine	core/tests/Drupal/Tests/Component/Annotation/Doctrine/DocParserTest.php

Other projects

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.