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
ModuleInstallerInterface		interface	Drupal\Core\Extension	core/lib/Drupal/Core/Extension/ModuleInstallerInterface.php	Provides the installation of modules with creating the db schema and more.	2	12
ModuleInstallerTest		class	Drupal\KernelTests\Core\Extension	core/tests/Drupal/KernelTests/Core/Extension/ModuleInstallerTest.php	Tests the ModuleInstaller class.
ModuleLegacyTest		class	Drupal\KernelTests\Core\Extension	core/tests/Drupal/KernelTests/Core/Extension/ModuleLegacyTest.php	Tests deprecations from module.inc file.
ModulePermissionsLinkHelper		class	Drupal\user	core/modules/user/src/ModulePermissionsLinkHelper.php	Provides a helper for generating module permissions links.		2	2
ModulePermissionsLinkHelperTest		class	Drupal\Tests\user\Kernel	core/modules/user/tests/src/Kernel/ModulePermissionsLinkHelperTest.php	Tests the ModulePermissionsLinkHelper.
ModuleRequiredByThemesUninstallValidator		class	Drupal\Core\Extension	core/lib/Drupal/Core/Extension/ModuleRequiredByThemesUninstallValidator.php	Ensures modules cannot be uninstalled if enabled themes depend on them.		1	2
ModuleRequiredByThemesUninstallValidator		class	Drupal\Core\ProxyClass\Extension	core/lib/Drupal/Core/ProxyClass/Extension/ModuleRequiredByThemesUninstallValidator.php	Provides a proxy class for \Drupal\Core\Extension\ModuleRequiredByThemesUninstallValidator.
ModuleRequiredByThemesUninstallValidatorTest		class	Drupal\Tests\Core\Extension	core/tests/Drupal/Tests/Core/Extension/ModuleRequiredByThemesUninstallValidatorTest.php	@coversDefaultClass \Drupal\Core\Extension\ModuleRequiredByThemesUninstallValidator[[api-linebreak]] @group Extension
ModuleRouteSubscriber		class	Drupal\Core\EventSubscriber	core/lib/Drupal/Core/EventSubscriber/ModuleRouteSubscriber.php	A route subscriber to remove routes that depend on modules being enabled.		1	2
ModuleRouteSubscriberTest		class	Drupal\Tests\Core\EventSubscriber	core/tests/Drupal/Tests/Core/EventSubscriber/ModuleRouteSubscriberTest.php	@coversDefaultClass \Drupal\Core\EventSubscriber\ModuleRouteSubscriber[[api-linebreak]] @group EventSubscriber
ModulesEnabledTrait		trait	Drupal\system\Form	core/modules/system/src/Form/ModulesEnabledTrait.php	Provides helpers for enabling modules.
ModulesListConfirmForm		class	Drupal\system\Form	core/modules/system/src/Form/ModulesListConfirmForm.php	Builds a confirmation form for enabling modules with dependencies.	1		1
ModulesListForm		class	Drupal\system\Form	core/modules/system/src/Form/ModulesListForm.php	Provides module installation interface.			1
ModulesListFormWebTest		class	Drupal\Tests\system\Functional\Form	core/modules/system/tests/src/Functional/Form/ModulesListFormWebTest.php	Tests \Drupal\system\Form\ModulesListForm.
ModulesListNonStableConfirmForm		class	Drupal\system\Form	core/modules/system/src/Form/ModulesListNonStableConfirmForm.php	Builds a confirmation form for enabling experimental and deprecated modules.			1
ModulesUninstallConfirmForm		class	Drupal\system\Form	core/modules/system/src/Form/ModulesUninstallConfirmForm.php	Builds a confirmation form to uninstall selected modules.			1
ModulesUninstallForm		class	Drupal\system\Form	core/modules/system/src/Form/ModulesUninstallForm.php	Provides a form for uninstalling modules.			1
ModuleTest		class	Drupal\Tests\views\Kernel	core/modules/views/tests/src/Kernel/ModuleTest.php	Tests basic functions from the Views module.
ModuleTestBase		abstract class	Drupal\Tests\system\Functional\Module	core/modules/system/tests/src/Functional/Module/ModuleTestBase.php	Helper class for module test cases.	5	2
ModuleTestController		class	Drupal\module_test\Controller	core/modules/system/tests/modules/module_test/src/Controller/ModuleTestController.php	Controller routines for module_test routes.
ModuleThemePageXssVulnerabilityTest		class	Drupal\Tests\system\Functional	core/modules/system/tests/src/Functional/ModuleThemePageXssVulnerabilityTest.php	Tests module and theme pages do not have XSS vulnerabilities.
ModuleUninstallFilterTest		class	Drupal\Tests\system\FunctionalJavascript	core/modules/system/tests/src/FunctionalJavascript/ModuleUninstallFilterTest.php	Tests the JavaScript functionality of the module uninstall filter.
ModuleUninstallValidatorException		class	Drupal\Core\Extension	core/lib/Drupal/Core/Extension/ModuleUninstallValidatorException.php	Defines an exception thrown when uninstalling a module that did not validate.		6
ModuleUninstallValidatorInterface		interface	Drupal\Core\Extension	core/lib/Drupal/Core/Extension/ModuleUninstallValidatorInterface.php	Common interface for module uninstall validators.	16	5
MonkeysInTheControlRoom		class	Drupal\error_service_test	core/modules/system/tests/modules/error_service_test/src/MonkeysInTheControlRoom.php	A http middleware designed to cause bedlam.			2
MonthDate		class	Drupal\datetime\Plugin\views\argument	core/modules/datetime/src/Plugin/views/argument/MonthDate.php	Argument handler for a month.
MonthDate		class	Drupal\views\Plugin\views\argument	core/modules/views/src/Plugin/views/argument/MonthDate.php	Argument handler for a month (MM)
MonthDatePluginTest		class	Drupal\Tests\views\Functional\Plugin	core/modules/views/tests/src/Functional/Plugin/MonthDatePluginTest.php	Tests the Month Date Plugin.
MoreLink		class	Drupal\Core\Render\Element	core/lib/Drupal/Core/Render/Element/MoreLink.php	Provides a link render element for a "more" link, like those used in blocks.
MoveBlockController		class	Drupal\layout_builder\Controller	core/modules/layout_builder/src/Controller/MoveBlockController.php	Defines a controller to move a block.
MoveBlockForm		class	Drupal\layout_builder\Form	core/modules/layout_builder/src/Form/MoveBlockForm.php	Provides a form for moving a block.			1
MoveBlockFormTest		class	Drupal\Tests\layout_builder\FunctionalJavascript	core/modules/layout_builder/tests/src/FunctionalJavascript/MoveBlockFormTest.php	Tests moving blocks via the form.
MoveTest		class	Drupal\Tests\file\Kernel	core/modules/file/tests/src/Kernel/MoveTest.php	Tests the file move function.
MTimeProtectedFastFileStorage		class	Drupal\Component\PhpStorage	core/lib/Drupal/Component/PhpStorage/MTimeProtectedFastFileStorage.php	Stores PHP code in files with securely hashed names.	1
MTimeProtectedFastFileStorageTest		class	Drupal\Tests\Component\PhpStorage	core/tests/Drupal/Tests/Component/PhpStorage/MTimeProtectedFastFileStorageTest.php	Tests the MTimeProtectedFastFileStorage implementation.
MTimeProtectedFileStorage		class	Drupal\Component\PhpStorage	core/lib/Drupal/Component/PhpStorage/MTimeProtectedFileStorage.php	Stores PHP code in files with securely hashed names.		1
MTimeProtectedFileStorageBase		abstract class	Drupal\Tests\Component\PhpStorage	core/tests/Drupal/Tests/Component/PhpStorage/MTimeProtectedFileStorageBase.php	Base test class for MTime protected storage.	2
MTimeProtectedFileStorageTest		class	Drupal\Tests\Component\PhpStorage	core/tests/Drupal/Tests/Component/PhpStorage/MTimeProtectedFileStorageTest.php	Tests the MTimeProtectedFileStorage implementation.
MultiFormTest		class	Drupal\FunctionalJavascriptTests\Ajax	core/tests/Drupal/FunctionalJavascriptTests/Ajax/MultiFormTest.php	Tests AJAX-enabled forms when multiple instances of the form are on a page.
MultiItemsFieldHandlerInterface		interface	Drupal\views\Plugin\views\field	core/modules/views/src/Plugin/views/field/MultiItemsFieldHandlerInterface.php	Defines a field handler which renders multiple items per row.	2
MultilingualReviewPageTest		class	Drupal\Tests\migrate_drupal_ui\Functional\d6	core/modules/migrate_drupal_ui/tests/src/Functional/d6/MultilingualReviewPageTest.php	Tests migrate upgrade review page for Drupal 6.
MultilingualReviewPageTest		class	Drupal\Tests\migrate_drupal_ui\Functional\d7	core/modules/migrate_drupal_ui/tests/src/Functional/d7/MultilingualReviewPageTest.php	Tests migrate upgrade review page for Drupal 7.
MultilingualReviewPageTestBase		abstract class	Drupal\Tests\migrate_drupal_ui\Functional	core/modules/migrate_drupal_ui/tests/src/Functional/MultilingualReviewPageTestBase.php	Provides a base class for testing the review step of the Upgrade form.	3	2
MultipleAttributes		final class	Drupal\Tests\Component\Annotation\Doctrine\Fixtures\Attribute	core/tests/Drupal/Tests/Component/Annotation/Doctrine/Fixtures/Attribute/MultipleAttributes.php	#[\Attribute] #[AttributeClass]
MultipleBlockFormTest		class	Drupal\KernelTests\Core\Block	core/tests/Drupal/KernelTests/Core/Block/MultipleBlockFormTest.php	Tests that blocks can have multiple forms.
MultipleDistributionsProfileTest		class	Drupal\FunctionalTests\Installer	core/tests/Drupal/FunctionalTests/Installer/MultipleDistributionsProfileTest.php	Tests multiple distribution profile support.
MultipleFileUploadTest		class	Drupal\Tests\file\Functional	core/modules/file/tests/src/Functional/MultipleFileUploadTest.php	Tests multiple file upload.
MultipleProviderAnnotationInterface		interface	Drupal\migrate\Annotation	core/modules/migrate/src/Annotation/MultipleProviderAnnotationInterface.php	Defines a common interface for classed annotations with multiple providers.	1	1
MultipleStaticContext		class	Drupal\block_test\ContextProvider	core/modules/block/tests/modules/block_test/src/ContextProvider/MultipleStaticContext.php	Sets multiple contexts for a static value.			2
MultipleValueWidgetTest		class	Drupal\Tests\field\FunctionalJavascript	core/modules/field/tests/src/FunctionalJavascript/MultipleValueWidgetTest.php	Tests widget form for a multiple value field.

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