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
DisplayTest class Drupal\views_test_data\Plugin\views\display core/modules/views/tests/modules/views_test_data/src/Plugin/views/display/DisplayTest.php Defines a Display test plugin. 1 2
DisplayTest class Drupal\Tests\views_ui\FunctionalJavascript core/modules/views_ui/tests/src/FunctionalJavascript/DisplayTest.php Tests the display UI.
DisplayTest class Drupal\Tests\views_ui\Functional core/modules/views_ui/tests/src/Functional/DisplayTest.php Tests the display UI.
DisplayVariant class Drupal\Core\Display\Attribute core/lib/Drupal/Core/Display/Attribute/DisplayVariant.php Defines a display variant attribute object. 1 2
DisplayVariant class Drupal\Core\Display\Annotation core/lib/Drupal/Core/Display/Annotation/DisplayVariant.php Defines a display variant annotation object. 1
DisplayVariantTest class Drupal\Tests\Core\Display core/tests/Drupal/Tests/Core/Display/DisplayVariantTest.php Tests Drupal\Core\Display\VariantBase.
DisplayVariantTest class Drupal\Tests\system\Functional\Render core/modules/system/tests/src/Functional/Render/DisplayVariantTest.php Tests selecting a display variant.
DistributionProfileExistingSettingsTest class Drupal\FunctionalTests\Installer core/tests/Drupal/FunctionalTests/Installer/DistributionProfileExistingSettingsTest.php Tests distribution profile support with existing settings.
DistributionProfileTest class Drupal\FunctionalTests\Installer core/tests/Drupal/FunctionalTests/Installer/DistributionProfileTest.php Tests distribution profile support.
DistributionProfileTranslationQueryTest class Drupal\FunctionalTests\Installer core/tests/Drupal/FunctionalTests/Installer/DistributionProfileTranslationQueryTest.php Tests distribution profile support with a 'langcode' query string.
DistributionProfileTranslationTest class Drupal\FunctionalTests\Installer core/tests/Drupal/FunctionalTests/Installer/DistributionProfileTranslationTest.php Tests distribution profile support.
DocLexer final class Drupal\Component\Annotation\Doctrine core/lib/Drupal/Component/Annotation/Doctrine/DocLexer.php Simple lexer for docblock annotations.
DocParser final class Drupal\Component\Annotation\Doctrine core/lib/Drupal/Component/Annotation/Doctrine/DocParser.php A parser for docblock annotations. 3
DocParserIgnoredClassesTest class Drupal\Tests\Component\Annotation core/tests/Drupal/Tests/Component/Annotation/DocParserIgnoredClassesTest.php Tests Drupal\Component\Annotation\Doctrine\DocParser.
DocParserTest class Drupal\Tests\Component\Annotation\Doctrine core/tests/Drupal/Tests/Component/Annotation/Doctrine/DocParserTest.php This class is a near-copy of Doctrine\Tests\Common\Annotations\DocParserTest, which is part of the Doctrine project: <http://www.doctrine-project.org>. It was copied from version 1.2.7.
DocumentElement class Drupal\Tests core/tests/Drupal/Tests/DocumentElement.php Document element.
DoTrustedCallbackTrait trait Drupal\Core\Security core/lib/Drupal/Core/Security/DoTrustedCallbackTrait.php Ensures that only predefined methods can be used as callback methods. 5
DoTrustedCallbackTraitTest class Drupal\Tests\Core\Security core/tests/Drupal/Tests/Core/Security/DoTrustedCallbackTraitTest.php Tests Drupal\Core\Security\DoTrustedCallbackTrait.
DoubleSlashTest class Drupal\Tests\migrate_drupal_ui\Functional\d7 core/modules/migrate_drupal_ui/tests/src/Functional/d7/DoubleSlashTest.php Tests that a double slash is not in d7_file file not found migrate messages.
Download class Drupal\migrate\Plugin\migrate\process core/modules/migrate/src/Plugin/migrate/process/Download.php Downloads a file from a HTTP(S) remote location into the local file system. 1
DownloadFunctionalTest class Drupal\Tests\migrate\Functional\process core/modules/migrate/tests/src/Functional/process/DownloadFunctionalTest.php Tests the 'download' process plugin.
DownloadTest class Drupal\Tests\migrate\Kernel\process core/modules/migrate/tests/src/Kernel/process/DownloadTest.php Tests the download process plugin.
DownloadTest class Drupal\Tests\file\Functional core/modules/file/tests/src/Functional/DownloadTest.php Tests for download/file transfer functions.
DraggableListBuilder abstract class Drupal\Core\Config\Entity core/lib/Drupal/Core/Config/Entity/DraggableListBuilder.php Defines a class to build a draggable listing of configuration entities. 5 5
DraggableListBuilderTrait trait Drupal\Core\Entity core/lib/Drupal/Core/Entity/DraggableListBuilderTrait.php Provides a trait for draggable listings of entities. 1
DriverModuleMissingDependenciesTest class Drupal\Tests\Core\Database core/tests/Drupal/Tests/Core/Database/DriverModuleMissingDependenciesTest.php Tests for database driver module with missing dependency.
DriverNotSpecifiedException class Drupal\Core\Database core/lib/Drupal/Core/Database/DriverNotSpecifiedException.php Exception thrown if no driver is specified for a database connection.
DriverSpecificConnectionUnitTestBase abstract class Drupal\KernelTests\Core\Database core/tests/Drupal/KernelTests/Core/Database/DriverSpecificConnectionUnitTestBase.php Tests management of database connections. 2 2
DriverSpecificDatabaseTestBase abstract class Drupal\KernelTests\Core\Database core/tests/Drupal/KernelTests/Core/Database/DriverSpecificDatabaseTestBase.php Base class for driver specific database tests. 9 5
DriverSpecificKernelTestBase abstract class Drupal\KernelTests\Core\Database core/tests/Drupal/KernelTests/Core/Database/DriverSpecificKernelTestBase.php Base class for driver specific kernel tests. 13 10
DriverSpecificSchemaTestBase abstract class Drupal\KernelTests\Core\Database core/tests/Drupal/KernelTests/Core/Database/DriverSpecificSchemaTestBase.php Tests table creation and modification via the schema API. 3 3
DriverSpecificSyntaxTestBase abstract class Drupal\KernelTests\Core\Database core/tests/Drupal/KernelTests/Core/Database/DriverSpecificSyntaxTestBase.php Tests driver specific SQL syntax interpretation. 4 4
DriverSpecificTransactionTestBase abstract class Drupal\KernelTests\Core\Database core/tests/Drupal/KernelTests/Core/Database/DriverSpecificTransactionTestBase.php Tests the transaction abstraction system. 4 4
Dropbutton class Drupal\Core\Render\Element core/lib/Drupal/Core/Render/Element/Dropbutton.php Provides a render element for a set of links rendered as a drop-down button. 1
Dropbutton class Drupal\views\Plugin\views\field core/modules/views/src/Plugin/views/field/Dropbutton.php Provides a handler that renders links as dropbutton.
Drupal class core/lib/Drupal.php Static Service Container wrapper.
Drupal6SqlBaseTest class Drupal\Tests\migrate_drupal\Unit\source\d6 core/modules/migrate_drupal/tests/src/Unit/source/d6/Drupal6SqlBaseTest.php Tests the D6 SQL base class.
DrupalAspectsOfCKEditor5Plugin class Drupal\ckeditor5\Attribute core/modules/ckeditor5/src/Attribute/DrupalAspectsOfCKEditor5Plugin.php Define a Drupal aspects of CKEditor5 plugin.
DrupalAspectsOfCKEditor5Plugin class Drupal\ckeditor5\Annotation core/modules/ckeditor5/src/Annotation/DrupalAspectsOfCKEditor5Plugin.php Defines the "Drupal aspects of a CKEditor5Plugin" annotation object. 1
DrupalComponentTest class Drupal\Tests\Component core/tests/Drupal/Tests/Component/DrupalComponentTest.php General tests for \Drupal\Component that can't go anywhere else.
DrupalCoreComposer class Drupal\Composer\Generator\Util composer/Generator/Util/DrupalCoreComposer.php Utilities for working with drupal composer.json files and data. 6
DrupalCoreRecommendedBuilder class Drupal\Composer\Generator\Builder composer/Generator/Builder/DrupalCoreRecommendedBuilder.php Builder to produce metapackage for drupal/core-recommended. 3
DrupalDateTime class Drupal\Core\Datetime core/lib/Drupal/Core/Datetime/DrupalDateTime.php Extends DateTimePlus(). 3 39
DrupalDateTimeTest class Drupal\Tests\Core\Datetime core/tests/Drupal/Tests/Core/Datetime/DrupalDateTimeTest.php Tests Drupal\Core\Datetime\DrupalDateTime.
DrupalDateTimeTest class Drupal\KernelTests\Core\Datetime core/tests/Drupal/KernelTests/Core/Datetime/DrupalDateTimeTest.php Tests DrupalDateTime functionality.
DrupalDebugClassLoader class Drupal\TestTools\ErrorHandler core/tests/Drupal/TestTools/ErrorHandler/DrupalDebugClassLoader.php Extends Symfony's DebugClassLoader for Drupal-aware vendor boundaries. 2
DrupalDebugClassLoaderTest class Drupal\Tests\TestTools\ErrorHandler core/tests/Drupal/Tests/TestTools/ErrorHandler/DrupalDebugClassLoaderTest.php Tests the DrupalDebugClassLoader.
DrupalDevDependenciesBuilder class Drupal\Composer\Generator\Builder composer/Generator/Builder/DrupalDevDependenciesBuilder.php Builder to produce metapackage for drupal/core-dev. 3
DrupalFlushAllCachesInInstallerTest class Drupal\FunctionalTests\Installer core/tests/Drupal/FunctionalTests/Installer/DrupalFlushAllCachesInInstallerTest.php Tests drupal_flush_all_caches() during an install.
DrupalFlushAllCachesTest class Drupal\KernelTests\Core\Common core/tests/Drupal/KernelTests/Core/Common/DrupalFlushAllCachesTest.php Tests Drupal Flush All Caches.

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