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
MailTest class Drupal\Tests\system\Kernel\Mail core/modules/system/tests/src/Kernel/Mail/MailTest.php Performs tests on the pluggable mailing framework.
MailToFormatter class Drupal\Core\Field\Plugin\Field\FieldFormatter core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/MailToFormatter.php Plugin implementation of the 'email_mailto' formatter.
MainContentBlockPluginInterface interface Drupal\Core\Block core/lib/Drupal/Core/Block/MainContentBlockPluginInterface.php The interface for "main page content" blocks. 1 3
MainContentFallbackTest class Drupal\Tests\system\Functional\System core/modules/system/tests/src/Functional/System/MainContentFallbackTest.php Test SimplePageVariant main content rendering fallback page display variant.
MainContentRendererInterface interface Drupal\Core\Render\MainContent core/lib/Drupal/Core/Render/MainContent/MainContentRendererInterface.php The interface for "main content" ( 4 2
MainContentRenderersPass class Drupal\Core\Render\MainContent core/lib/Drupal/Core/Render/MainContent/MainContentRenderersPass.php Adds main_content_renderers parameter to the container. 1
MainContentViewSubscriber class Drupal\Core\EventSubscriber core/lib/Drupal/Core/EventSubscriber/MainContentViewSubscriber.php View subscriber rendering main content render arrays into responses. 28 2
MaintenanceMode class Drupal\Core\Site core/lib/Drupal/Core/Site/MaintenanceMode.php Provides the default implementation of the maintenance mode service. 2
MaintenanceModeEvents final class Drupal\Core\Site core/lib/Drupal/Core/Site/MaintenanceModeEvents.php Defines events for maintenance mode. 3
MaintenanceModeInterface interface Drupal\Core\Site core/lib/Drupal/Core/Site/MaintenanceModeInterface.php Defines the interface for the maintenance mode service. 1 3
MaintenanceModeSubscriber class Drupal\Core\EventSubscriber core/lib/Drupal/Core/EventSubscriber/MaintenanceModeSubscriber.php Maintenance mode subscriber for controller requests. 2
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 @coversDefaultClass \Drupal\migrate\Plugin\migrate\process\MakeUniqueEntityField[[api-linebreak]] @group migrate
ManagedFile class Drupal\file\Element core/modules/file/src/Element/ManagedFile.php Provides an AJAX/progress aware widget for uploading and saving a file. 1
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.
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.
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\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
ManyPlaceholderTest class Drupal\Tests\big_pipe\Unit\Render core/modules/big_pipe/tests/src/Unit/Render/ManyPlaceholderTest.php @coversDefaultClass \Drupal\big_pipe\Render\BigPipe[[api-linebreak]] @group big_pipe
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. 4 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. 6 1
MapDataNormalizerTest class Drupal\Tests\serialization\Kernel core/modules/serialization/tests/src/Kernel/MapDataNormalizerTest.php @group typedData
MapFieldItemList class Drupal\Core\Field core/lib/Drupal/Core/Field/MapFieldItemList.php Defines an item list class for map fields.
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. @todo document @private @subpackage DifferenceEngine 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. 3 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
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
Markup final class Drupal\Core\Render core/lib/Drupal/Core/Render/Markup.php Defines an object that passes safe strings through the render system. 30
Markup class Drupal\views\Plugin\views\field core/modules/views/src/Plugin/views/field/Markup.php Handler to run a field through check_markup, using a companion format field.

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