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
MessageAction class Drupal\Core\Action\Plugin\Action core/lib/Drupal/Core/Action/Plugin/Action/MessageAction.php Sends a message to the current user's screen.
MessageCommand class Drupal\Core\Ajax core/lib/Drupal/Core/Ajax/MessageCommand.php AJAX command for a JavaScript Drupal.message() call. 6
MessageCommandTest class Drupal\FunctionalJavascriptTests\Ajax core/tests/Drupal/FunctionalJavascriptTests/Ajax/MessageCommandTest.php Tests adding messages via AJAX command.
MessageEntityTest class Drupal\Tests\contact\Kernel core/modules/contact/tests/src/Kernel/MessageEntityTest.php Tests the message entity class.
MessageEventTestSubscriber class Drupal\mailer_event_subscriber_test\EventSubscriber core/modules/mailer/tests/modules/mailer_event_subscriber_test/src/EventSubscriber/MessageEventTestSubscriber.php A message event test subscriber. 2
MessageForm class Drupal\contact core/modules/contact/src/MessageForm.php Form controller for contact message forms. 1
MessageForm class Drupal\migrate\Form core/modules/migrate/src/Form/MessageForm.php Migrate messages form.
MessageInterface interface Drupal\contact core/modules/contact/src/MessageInterface.php Provides an interface defining a contact message entity. 1 1
MessageJsonAnonTest class Drupal\Tests\contact\Functional\Rest core/modules/contact/tests/src/Functional/Rest/MessageJsonAnonTest.php Tests Message Json Anon.
MessageJsonBasicAuthTest class Drupal\Tests\contact\Functional\Rest core/modules/contact/tests/src/Functional/Rest/MessageJsonBasicAuthTest.php Tests Message Json Basic Auth.
MessageJsonCookieTest class Drupal\Tests\contact\Functional\Rest core/modules/contact/tests/src/Functional/Rest/MessageJsonCookieTest.php Tests Message Json Cookie.
MessagePlugin class Drupal\Composer\Plugin\ProjectMessage composer/Plugin/ProjectMessage/MessagePlugin.php A Composer plugin to display a message after creating a project.
MessageResourceTestBase abstract class Drupal\Tests\contact\Functional\Rest core/modules/contact/tests/src/Functional/Rest/MessageResourceTestBase.php Resource test base for the ContactMessage entity. 6
Messages class Drupal\views\Plugin\views\area core/modules/views/src/Plugin/views/area/Messages.php Provides an area for messages. 1
MessagesBlockPluginInterface interface Drupal\Core\Block core/lib/Drupal/Core/Block/MessagesBlockPluginInterface.php The interface for "messages" (#type => status_messages) blocks. 2 4
MessagesTest class Drupal\Tests\views\Unit\Plugin\area core/modules/views/tests/src/Unit/Plugin/area/MessagesTest.php Tests Drupal\views\Plugin\views\area\Messages.
MessageTest class Drupal\Tests\contact\Functional\Jsonapi core/modules/contact/tests/src/Functional/Jsonapi/MessageTest.php JSON:API integration test for the "Message" content entity type.
MessageTest class Drupal\KernelTests\Core\Theme core/tests/Drupal/KernelTests/Core/Theme/MessageTest.php Tests built-in message theme functions.
MessageViewBuilder class Drupal\contact core/modules/contact/src/MessageViewBuilder.php Render controller for contact messages. 1
MessageXmlAnonTest class Drupal\Tests\contact\Functional\Rest core/modules/contact/tests/src/Functional/Rest/MessageXmlAnonTest.php Tests Message Xml Anon.
MessageXmlBasicAuthTest class Drupal\Tests\contact\Functional\Rest core/modules/contact/tests/src/Functional/Rest/MessageXmlBasicAuthTest.php Tests Message Xml Basic Auth.
MessageXmlCookieTest class Drupal\Tests\contact\Functional\Rest core/modules/contact/tests/src/Functional/Rest/MessageXmlCookieTest.php Tests Message Xml Cookie.
Messenger class Drupal\Core\Messenger core/lib/Drupal/Core/Messenger/Messenger.php The messenger service. 1 2
MessengerInterface interface Drupal\Core\Messenger core/lib/Drupal/Core/Messenger/MessengerInterface.php Stores runtime messages sent out to individual users on the page. 1 75
MessengerTest class Drupal\KernelTests\Core\Messenger core/tests/Drupal/KernelTests/Core/Messenger/MessengerTest.php Tests Drupal\Core\Messenger\Messenger.
MessengerTrait trait Drupal\Core\Messenger core/lib/Drupal/Core/Messenger/MessengerTrait.php Provides a trait for the messenger service. 8
MetadataBag class Drupal\Core\Session core/lib/Drupal/Core/Session/MetadataBag.php Provides a container for application specific session metadata. 4 2
MetadataBagTest class Drupal\Tests\Core\Session core/tests/Drupal/Tests/Core/Session/MetadataBagTest.php Tests Drupal\Core\Session\MetadataBag.
MetadataBubblingUrlGenerator class Drupal\Core\Render core/lib/Drupal/Core/Render/MetadataBubblingUrlGenerator.php Decorator for the URL generator, which bubbles bubbleable URL metadata. 3 2
MetadataBubblingUrlGeneratorTest class Drupal\Tests\Core\Render core/tests/Drupal/Tests/Core/Render/MetadataBubblingUrlGeneratorTest.php Confirm that the MetadataBubblingUrlGenerator is functioning properly.
MetaEventSubscriber class Drupal\jsonapi_test_meta_events\EventSubscriber core/modules/jsonapi/tests/modules/jsonapi_test_meta_events/src/EventSubscriber/MetaEventSubscriber.php Event subscriber which tests adding metadata to ResourceObjects and relationships. 2
MetapackageUpdateTest class Drupal\Tests\Composer\Generator core/tests/Drupal/Tests/Composer/Generator/MetapackageUpdateTest.php Test to see if the metapackages are up-to-date with the root composer.lock.
MethodCallable class Drupal\Tests\Core\Utility core/tests/Drupal/Tests/Core/Utility/CallableResolverTest.php A test class with callable methods.
MethodFilter class Drupal\Core\Routing core/lib/Drupal/Core/Routing/MethodFilter.php Filters routes based on the HTTP method. 1 2
MethodFilterTest class Drupal\Tests\Core\Routing core/tests/Drupal/Tests/Core/Routing/MethodFilterTest.php Tests Drupal\Core\Routing\MethodFilter.
MethodRouteCondition class Drupal\Tests\Core\Routing core/tests/Drupal/Tests/Core/Routing/UnsupportedRouteAttributePropertiesTest.php Test class.
MethodRouteLocale class Drupal\Tests\Core\Routing core/tests/Drupal/Tests/Core/Routing/UnsupportedRouteAttributePropertiesTest.php Test class.
MethodRouteLocalizedPaths class Drupal\Tests\Core\Routing core/tests/Drupal/Tests/Core/Routing/UnsupportedRouteAttributePropertiesTest.php Test class.
MethodRouteMissingName class Drupal\Tests\Core\Routing core/tests/Drupal/Tests/Core/Routing/UnsupportedRouteAttributePropertiesTest.php Test class.
MigrateAccessCheck class Drupal\migrate_drupal_ui core/modules/migrate_drupal_ui/src/MigrateAccessCheck.php Checks access for migrate_drupal_ui routes.
MigrateAccessTest class Drupal\Tests\migrate_drupal_ui\Functional core/modules/migrate_drupal_ui/tests/src/Functional/MigrateAccessTest.php Tests that only user 1 can access the migrate UI.
MigrateActionConfigsTest class Drupal\Tests\system\Kernel\Migrate\d7 core/modules/system/tests/src/Kernel/Migrate/d7/MigrateActionConfigsTest.php Upgrade variables to null.
MigrateActionConfigsTest class Drupal\Tests\system\Kernel\Migrate\d6 core/modules/system/tests/src/Kernel/Migrate/d6/MigrateActionConfigsTest.php Upgrade variables to null.
MigrateActionsTest class Drupal\Tests\system\Kernel\Migrate\d6 core/modules/system/tests/src/Kernel/Migrate/d6/MigrateActionsTest.php Tests migration of action items.
MigrateActionsTest class Drupal\Tests\system\Kernel\Migrate\d7 core/modules/system/tests/src/Kernel/Migrate/d7/MigrateActionsTest.php Tests migration of action items.
MigrateBlockContentBodyFieldTest class Drupal\Tests\block_content\Kernel\Migrate core/modules/block_content/tests/src/Kernel/Migrate/MigrateBlockContentBodyFieldTest.php Attaches a body field to the block type.
MigrateBlockContentEntityDisplayTest class Drupal\Tests\block_content\Kernel\Migrate core/modules/block_content/tests/src/Kernel/Migrate/MigrateBlockContentEntityDisplayTest.php Tests migration of block content body field display configuration.
MigrateBlockContentEntityFormDisplayTest class Drupal\Tests\block_content\Kernel\Migrate core/modules/block_content/tests/src/Kernel/Migrate/MigrateBlockContentEntityFormDisplayTest.php Tests migration of block content body field form display configuration.
MigrateBlockContentStubTest class Drupal\Tests\block_content\Kernel\Migrate core/modules/block_content/tests/src/Kernel/Migrate/MigrateBlockContentStubTest.php Test stub creation for block_content entities.
MigrateBlockContentTest class Drupal\Tests\block_content\Kernel\Migrate\d6 core/modules/block_content/tests/src/Kernel/Migrate/d6/MigrateBlockContentTest.php Upgrade content blocks.

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