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
ConditionInterface interface Drupal\Core\Database\Query core/lib/Drupal/Core/Database/Query/ConditionInterface.php Interface for a conditional clause in a query. 5 3
ConditionInterface interface Drupal\Core\Entity\Query core/lib/Drupal/Core/Entity/Query/ConditionInterface.php Defines the entity query condition interface. 1 2
ConditionInterface interface Drupal\Core\Condition core/lib/Drupal/Core/Condition/ConditionInterface.php An interface for condition plugins. 1 1
ConditionManager class Drupal\Core\Condition core/lib/Drupal/Core/Condition/ConditionManager.php A plugin manager for condition plugins. 2 2
ConditionPluginBase abstract class Drupal\Core\Condition core/lib/Drupal/Core/Condition/ConditionPluginBase.php Provides a basis for fulfilling contexts for condition plugins. 11 11
ConditionPluginCollection class Drupal\Core\Condition core/lib/Drupal/Core/Condition/ConditionPluginCollection.php Provides a collection of condition plugins. 2
ConditionPluginCollectionTest class Drupal\KernelTests\Core\Condition core/tests/Drupal/KernelTests/Core/Condition/ConditionPluginCollectionTest.php @coversDefaultClass \Drupal\Core\Condition\ConditionPluginCollection
ConditionTest class Drupal\Tests\Core\Database core/tests/Drupal/Tests/Core/Database/ConditionTest.php @coversDefaultClass \Drupal\Core\Database\Query\Condition
ConditionTestDualUser class Drupal\condition_test\Plugin\Condition core/modules/system/tests/modules/condition_test/src/Plugin/Condition/ConditionTestDualUser.php Provides a condition that requires two users.
ConditionTestDualUserTest class Drupal\KernelTests\Core\Plugin\Condition core/tests/Drupal/KernelTests/Core/Plugin/Condition/ConditionTestDualUserTest.php Tests a condition that requires two users.
ConditionTestNoExistingType class Drupal\condition_test\Plugin\Condition core/modules/system/tests/modules/condition_test/src/Plugin/Condition/ConditionTestNoExistingType.php Provides a condition that has a no existing context.
Config class Drupal\migrate\Plugin\migrate\destination core/modules/migrate/src/Plugin/migrate/destination/Config.php Provides Configuration Management destination plugin. 1 4
Config class Drupal\Core\Config core/lib/Drupal/Core/Config/Config.php Defines the default configuration object. 1 28
Config class Drupal\Composer\Plugin\VendorHardening composer/Plugin/VendorHardening/Config.php Determine configuration. 3
Config class Drupal\migrate_drupal\Plugin\migrate\source\d8 core/modules/migrate_drupal/src/Plugin/migrate/source/d8/Config.php Drupal 8+ configuration source from database.
ConfigAccessTest class Drupal\Tests\settings_tray\FunctionalJavascript core/modules/settings_tray/tests/src/FunctionalJavascript/ConfigAccessTest.php Tests handling of configuration overrides.
ConfigAction final class Drupal\Core\Config\Action\Attribute core/lib/Drupal/Core/Config/Action/Attribute/ConfigAction.php Defines a ConfigAction attribute object. 10
ConfigActionAttributeTest class Drupal\Tests\Core\Config\Action core/tests/Drupal/Tests/Core/Config/Action/ConfigActionAttributeTest.php @coversDefaultClass \Drupal\Core\Config\Action\Attribute\ConfigAction @group Config
ConfigActionException final class Drupal\Core\Config\Action core/lib/Drupal/Core/Config/Action/ConfigActionException.php @internal This API is experimental. 12
ConfigActionManager class Drupal\Core\Config\Action core/lib/Drupal/Core/Config/Action/ConfigActionManager.php 2
ConfigActionPluginInterface interface Drupal\Core\Config\Action core/lib/Drupal/Core/Config/Action/ConfigActionPluginInterface.php @internal This API is experimental. 8 8
ConfigActionTest class Drupal\KernelTests\Core\Config\Action core/tests/Drupal/KernelTests/Core/Config/Action/ConfigActionTest.php Tests the config action system.
ConfigActionValidationTest class Drupal\KernelTests\Core\Recipe core/tests/Drupal/KernelTests/Core/Recipe/ConfigActionValidationTest.php @group Recipe
ConfigAfterInstallerTestBase abstract class Drupal\FunctionalTests\Installer core/tests/Drupal/FunctionalTests/Installer/ConfigAfterInstallerTestBase.php Provides a class for install profiles to check their installed config. 2
ConfigBase abstract class Drupal\Core\Config core/lib/Drupal/Core/Config/ConfigBase.php Provides a base class for configuration objects with get/set support. 2 1
ConfigCacheTag class Drupal\system\EventSubscriber core/modules/system/src/EventSubscriber/ConfigCacheTag.php A subscriber invalidating cache tags when system config objects are saved. 2
ConfigCollectionEvents final class Drupal\Core\Config core/lib/Drupal/Core/Config/ConfigCollectionEvents.php Defines events for working with configuration collections. 8
ConfigCollectionInfo class Drupal\Core\Config core/lib/Drupal/Core/Config/ConfigCollectionInfo.php Gets information on all the possible configuration collections. 3
ConfigConfigurator final class Drupal\Core\Recipe core/lib/Drupal/Core/Recipe/ConfigConfigurator.php @internal This API is experimental.
ConfigConfiguratorTest class Drupal\KernelTests\Core\Recipe core/tests/Drupal/KernelTests/Core/Recipe/ConfigConfiguratorTest.php @covers \Drupal\Core\Recipe\ConfigConfigurator @group Recipe
ConfigController class Drupal\config\Controller core/modules/config/src/Controller/ConfigController.php Returns responses for config module routes.
ConfigCrudEvent class Drupal\Core\Config core/lib/Drupal/Core/Config/ConfigCrudEvent.php Wraps a configuration event for event listeners. 1 22
ConfigCRUDTest class Drupal\KernelTests\Core\Config core/tests/Drupal/KernelTests/Core/Config/ConfigCRUDTest.php Tests CRUD operations on configuration objects.
ConfigDependencies class Drupal\rest\Entity core/modules/rest/src/Entity/ConfigDependencies.php Calculates rest resource config dependencies. 1
ConfigDependenciesTest class Drupal\Tests\rest\Kernel\Entity core/modules/rest/tests/src/Kernel/Entity/ConfigDependenciesTest.php @coversDefaultClass \Drupal\rest\Entity\ConfigDependencies
ConfigDependencyDeleteFormTrait trait Drupal\Core\Config\Entity core/lib/Drupal/Core/Config/Entity/ConfigDependencyDeleteFormTrait.php Lists affected configuration entities by a dependency removal. 2
ConfigDependencyManager class Drupal\Core\Config\Entity core/lib/Drupal/Core/Config/Entity/ConfigDependencyManager.php Provides a class to discover configuration entity dependencies. 6
ConfigDependencyManagerTest class Drupal\Tests\Core\Config core/tests/Drupal/Tests/Core/Config/ConfigDependencyManagerTest.php Tests the ConfigDependencyManager class.
ConfigDependencyManagerTest class Drupal\Tests\Core\Config\Entity core/tests/Drupal/Tests/Core/Config/Entity/ConfigDependencyManagerTest.php Tests the ConfigDependencyManager class.
ConfigDependencyTest class Drupal\KernelTests\Core\Config core/tests/Drupal/KernelTests/Core/Config/ConfigDependencyTest.php Tests for configuration dependencies.
ConfigDependencyWebTest class Drupal\Tests\config\Functional core/modules/config/tests/src/Functional/ConfigDependencyWebTest.php Tests configuration entities.
ConfigDiffTest class Drupal\KernelTests\Core\Config core/tests/Drupal/KernelTests/Core/Config/ConfigDiffTest.php Calculating the difference between two sets of configuration.
ConfigDirectoryNotDefinedException class Drupal\Core\Config core/lib/Drupal/Core/Config/ConfigDirectoryNotDefinedException.php An exception thrown when the config sync directory is not defined. 1
ConfigDraggableListBuilderTest class Drupal\Tests\config\Functional core/modules/config/tests/src/Functional/ConfigDraggableListBuilderTest.php Tests draggable list builder.
ConfigDuplicateUUIDException class Drupal\Core\Config core/lib/Drupal/Core/Config/ConfigDuplicateUUIDException.php Exception thrown when a config object UUID causes a conflict. 3
ConfigEntityAdapter class Drupal\Core\Entity\Plugin\DataType core/lib/Drupal/Core/Entity/Plugin/DataType/ConfigEntityAdapter.php Enhances EntityAdapter for config entities. 5
ConfigEntityAdapterTest class Drupal\KernelTests\Core\Entity core/tests/Drupal/KernelTests/Core/Entity/ConfigEntityAdapterTest.php Tests entity adapter for configuration entities.
ConfigEntityBase abstract class Drupal\Core\Config\Entity core/lib/Drupal/Core/Config/Entity/ConfigEntityBase.php Defines a base configuration entity class. 26 28
ConfigEntityBaseMockableClass class Drupal\Tests\Core\Config\Entity core/tests/Drupal/Tests/Core/Config/Entity/ConfigEntityBaseUnitTest.php A class extending ConfigEntityBase for testing purposes.
ConfigEntityBaseUnitTest class Drupal\Tests\Core\Config\Entity core/tests/Drupal/Tests/Core/Config/Entity/ConfigEntityBaseUnitTest.php @coversDefaultClass \Drupal\Core\Config\Entity\ConfigEntityBase @group Config

Other projects

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.