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
MenuTranslation class Drupal\system\Plugin\migrate\source\d7 core/modules/system/src/Plugin/migrate/source/d7/MenuTranslation.php Drupal 7 i18n menu translation source from database.
MenuTranslationTest class Drupal\Tests\system\Kernel\Plugin\migrate\source\d7 core/modules/system/tests/src/Kernel/Plugin/migrate/source/d7/MenuTranslationTest.php Tests the menu translation source plugin.
MenuTreeHierarchyConstraint class Drupal\menu_link_content\Plugin\Validation\Constraint core/modules/menu_link_content/src/Plugin/Validation/Constraint/MenuTreeHierarchyConstraint.php Validation constraint for changing the menu hierarchy in pending revisions.
MenuTreeHierarchyConstraintValidator class Drupal\menu_link_content\Plugin\Validation\Constraint core/modules/menu_link_content/src/Plugin/Validation/Constraint/MenuTreeHierarchyConstraintValidator.php Constraint validator for changing menu link parents in pending revisions.
MenuTreeParameters class Drupal\Core\Menu core/lib/Drupal/Core/Menu/MenuTreeParameters.php Provides a value object to model menu tree parameters. 18
MenuTreeParametersTest class Drupal\Tests\Core\Menu core/tests/Drupal/Tests/Core/Menu/MenuTreeParametersTest.php Tests the menu link tree parameters value object.
MenuTreeStorage class Drupal\Core\Menu core/lib/Drupal/Core/Menu/MenuTreeStorage.php Provides a menu tree storage using the database. 1 2
MenuTreeStorageInterface interface Drupal\Core\Menu core/lib/Drupal/Core/Menu/MenuTreeStorageInterface.php Defines an interface for storing a menu tree containing menu link IDs. 1
MenuTreeStorageTest class Drupal\KernelTests\Core\Menu core/tests/Drupal/KernelTests/Core/Menu/MenuTreeStorageTest.php Tests the menu tree storage.
MenuUiContentModerationTest class Drupal\Tests\menu_ui\Functional core/modules/menu_ui/tests/src/Functional/MenuUiContentModerationTest.php Tests Menu UI and Content Moderation integration.
MenuUiJavascriptTest class Drupal\Tests\menu_ui\FunctionalJavascript core/modules/menu_ui/tests/src/FunctionalJavascript/MenuUiJavascriptTest.php Tests custom menu and menu links operations using the UI. 1 1
MenuUiLanguageTest class Drupal\Tests\menu_ui\Functional core/modules/menu_ui/tests/src/Functional/MenuUiLanguageTest.php Tests for menu_ui language settings.
MenuUiNodeTest class Drupal\Tests\menu_ui\Functional core/modules/menu_ui/tests/src/Functional/MenuUiNodeTest.php Add, edit, and delete a node with menu link.
MenuUiNodeTypeTest class Drupal\Tests\menu_ui\Kernel core/modules/menu_ui/tests/src/Kernel/MenuUiNodeTypeTest.php Tests menu settings when creating and editing content types.
MenuUiTest class Drupal\Tests\menu_ui\Functional core/modules/menu_ui/tests/src/Functional/MenuUiTest.php Tests the menu UI.
MenuUiTrait trait Drupal\Tests\menu_ui\Traits core/modules/menu_ui/tests/src/Traits/MenuUiTrait.php Provides common methods for Menu UI module tests. 3
MenuUninstallTest class Drupal\Tests\menu_ui\Functional core/modules/menu_ui/tests/src/Functional/MenuUninstallTest.php Tests that uninstalling menu does not remove custom menus.
MenuXmlAnonTest class Drupal\Tests\system\Functional\Rest core/modules/system/tests/src/Functional/Rest/MenuXmlAnonTest.php @group rest
MenuXmlBasicAuthTest class Drupal\Tests\system\Functional\Rest core/modules/system/tests/src/Functional/Rest/MenuXmlBasicAuthTest.php @group rest
MenuXmlCookieTest class Drupal\Tests\system\Functional\Rest core/modules/system/tests/src/Functional/Rest/MenuXmlCookieTest.php @group rest
Merge class Drupal\pgsql\Driver\Database\pgsql core/modules/pgsql/src/Driver/Database/pgsql/Merge.php PostgreSQL implementation of \Drupal\Core\Database\Query\Merge.
Merge class Drupal\driver_test\Driver\Database\DrivertestMysqlDeprecatedVersion core/modules/system/tests/modules/driver_test/src/Driver/Database/DrivertestMysqlDeprecatedVersion/Merge.php MySQL test implementation of \Drupal\Core\Database\Query\Merge.
Merge class Drupal\driver_test\Driver\Database\DrivertestMysql core/modules/system/tests/modules/driver_test/src/Driver/Database/DrivertestMysql/Merge.php MySQL test implementation of \Drupal\Core\Database\Query\Merge.
Merge class Drupal\corefake\Driver\Database\corefakeWithAllCustomClasses core/tests/fixtures/database_drivers/module/corefake/src/Driver/Database/corefakeWithAllCustomClasses/Merge.php CorefakeWithAllCustomClasses implementation of \Drupal\Core\Database\Merge.
Merge class Drupal\Core\Database\Query core/lib/Drupal/Core/Database/Query/Merge.php General class for an abstracted MERGE query operation. 4 7
Merge class Drupal\mysql\Driver\Database\mysql core/modules/mysql/src/Driver/Database/mysql/Merge.php MySQL implementation of \Drupal\Core\Database\Query\Merge. 2 2
Merge class Drupal\sqlite\Driver\Database\sqlite core/modules/sqlite/src/Driver/Database/sqlite/Merge.php SQLite implementation of \Drupal\Core\Database\Query\Merge.
MergeTest class Drupal\KernelTests\Core\Database core/tests/Drupal/KernelTests/Core/Database/MergeTest.php Tests the MERGE query builder.
Message class Drupal\contact\Entity core/modules/contact/src/Entity/Message.php Defines the contact message entity. 3
Message class Drupal\Composer\Plugin\ProjectMessage composer/Plugin/ProjectMessage/Message.php Determine configuration. 1
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. 2
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.
MessageForm class Drupal\contact core/modules/contact/src/MessageForm.php Form controller for contact message forms.
MessageHalJsonAnonTest class Drupal\Tests\hal\Functional\contact core/modules/hal/tests/src/Functional/contact/MessageHalJsonAnonTest.php @group hal @group legacy 2
MessageHalJsonBasicAuthTest class Drupal\Tests\hal\Functional\contact core/modules/hal/tests/src/Functional/contact/MessageHalJsonBasicAuthTest.php @group hal @group legacy
MessageHalJsonCookieTest class Drupal\Tests\hal\Functional\contact core/modules/hal/tests/src/Functional/contact/MessageHalJsonCookieTest.php @group hal @group legacy
MessageInterface interface Drupal\contact core/modules/contact/src/MessageInterface.php Provides an interface defining a contact message entity. 1 2
MessageJsonAnonTest class Drupal\Tests\contact\Functional\Rest core/modules/contact/tests/src/Functional/Rest/MessageJsonAnonTest.php @group rest
MessageJsonBasicAuthTest class Drupal\Tests\contact\Functional\Rest core/modules/contact/tests/src/Functional/Rest/MessageJsonBasicAuthTest.php @group rest
MessageJsonCookieTest class Drupal\Tests\contact\Functional\Rest core/modules/contact/tests/src/Functional/Rest/MessageJsonCookieTest.php @group rest
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 7 1
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. 1 2
MessagesTest class Drupal\Tests\views\Unit\Plugin\area core/modules/views/tests/src/Unit/Plugin/area/MessagesTest.php @coversDefaultClass \Drupal\views\Plugin\views\area\Messages[[api-linebreak]] @group views
MessageTest class Drupal\Tests\jsonapi\Functional core/modules/jsonapi/tests/src/Functional/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.

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