Classes, traits, and interfaces - 9.5.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 1523

Name	Deprecated	Object type	Namespace	File name	Summary	Direct uses	Use statements	Strings
ModifiedResourceResponse		class	Drupal\rest	core/modules/rest/src/ModifiedResourceResponse.php	A response that does not contain cacheability metadata.		4
ModifyServiceDefinitionsPass		class	Drupal\Core\DependencyInjection\Compiler	core/lib/Drupal/Core/DependencyInjection/Compiler/ModifyServiceDefinitionsPass.php	Passes the container to the alter() method of all service providers.		1
Module		class	Drupal\Core\Updater	core/lib/Drupal/Core/Updater/Module.php	Defines a class for updating modules.
ModuleConfigureRouteTest		class	Drupal\KernelTests\Core\Extension	core/tests/Drupal/KernelTests/Core/Extension/ModuleConfigureRouteTest.php	Tests the configure route for core modules.
ModuleDependencyMessageTrait		trait	Drupal\Core\Extension	core/lib/Drupal/Core/Extension/ModuleDependencyMessageTrait.php	Messages for missing or incompatible dependencies on modules.		2
ModuleExtensionList		class	Drupal\Core\Extension	core/lib/Drupal/Core/Extension/ModuleExtensionList.php	Provides a list of available modules.	1	26	2
ModuleExtensionListTest		class	Drupal\KernelTests\Core\Extension	core/tests/Drupal/KernelTests/Core/Extension/ModuleExtensionListTest.php	@coversDefaultClass \Drupal\Core\Extension\ModuleExtensionList[[api-linebreak]] @group Extension
ModuleHandler		class	Drupal\Core\Extension	core/lib/Drupal/Core/Extension/ModuleHandler.php	Class that manages modules in a Drupal installation.		3	2
ModuleHandlerDeprecatedHookTest		class	Drupal\KernelTests\Core\Extension	core/tests/Drupal/KernelTests/Core/Extension/ModuleHandlerDeprecatedHookTest.php	Test whether deprecated hook invocations trigger errors.
ModuleHandlerDeprecatedHookUnimplementedTest		class	Drupal\KernelTests\Core\Extension	core/tests/Drupal/KernelTests/Core/Extension/ModuleHandlerDeprecatedHookUnimplementedTest.php	Test whether unimplemented deprecated hook invocations trigger errors.
ModuleHandlerInterface		interface	Drupal\Core\Extension	core/lib/Drupal/Core/Extension/ModuleHandlerInterface.php	Interface for classes that manage a set of enabled modules.	1	203
ModuleHandlerTest		class	Drupal\KernelTests\Core\Extension	core/tests/Drupal/KernelTests/Core/Extension/ModuleHandlerTest.php	@coversDefaultClass \Drupal\Core\Extension\ModuleHandler[[api-linebreak]]
ModuleHandlerTest		class	Drupal\Tests\Core\Extension	core/tests/Drupal/Tests/Core/Extension/ModuleHandlerTest.php	@coversDefaultClass \Drupal\Core\Extension\ModuleHandler[[api-linebreak]] @runTestsInSeparateProcesses
ModuleHandlerTest		class	Drupal\Tests\system\Kernel\Extension	core/modules/system/tests/src/Kernel/Extension/ModuleHandlerTest.php	Tests ModuleHandler functionality.
ModuleImplementsAlterTest		class	Drupal\KernelTests\Core\Extension	core/tests/Drupal/KernelTests/Core/Extension/ModuleImplementsAlterTest.php	Tests hook_module_implements_alter().
ModuleInfoTest		class	Drupal\Tests\Core\Extension	core/tests/Drupal/Tests/Core/Extension/ModuleInfoTest.php	Tests that core module info files have the expected keys.
ModuleInstallBatchTest		class	Drupal\FunctionalTests\Core\Test	core/tests/Drupal/FunctionalTests/Core/Test/ModuleInstallBatchTest.php	Tests batch operations during tests execution.
ModuleInstaller		class	Drupal\Core\ProxyClass\Extension	core/lib/Drupal/Core/ProxyClass/Extension/ModuleInstaller.php	Provides a proxy class for \Drupal\Core\Extension\ModuleInstaller.
ModuleInstaller		class	Drupal\Core\Extension	core/lib/Drupal/Core/Extension/ModuleInstaller.php	Default implementation of the module installer.		1	2
ModuleInstallerDeprecationTest		class	Drupal\KernelTests\Core\Extension	core/tests/Drupal/KernelTests/Core/Extension/ModuleInstallerDeprecationTest.php	@group legacy @group extension @coversDefaultClass \Drupal\Core\Extension\ModuleInstaller[[api-linebreak]]
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	10
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.
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	1
ModuleTestController		class	Drupal\module_test\Controller	core/modules/system/tests/modules/module_test/src/Controller/ModuleTestController.php	Controller routines for module_test routes.
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.	14	5
ModuleVersion	in drupal:9.2.0 and is removed from drupal:10.0.0. Use \Drupal\Core\Extension\ExtensionVersion instead. As an internal class ExtensionVersion may also be removed in a minor release.	final class	Drupal\update	core/modules/update/src/ModuleVersion.php	Provides a module version value object.		1
ModuleVersionTest		class	Drupal\Tests\update\Unit	core/modules/update/tests/src/Unit/ModuleVersionTest.php	@coversDefaultClass \Drupal\update\ModuleVersion[[api-linebreak]]
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.

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