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
ListDataDefinition class Drupal\Core\TypedData core/lib/Drupal/Core/TypedData/ListDataDefinition.php A typed data definition class for defining lists. 3 5
ListDataDefinitionInterface interface Drupal\Core\TypedData core/lib/Drupal/Core/TypedData/ListDataDefinitionInterface.php Interface for data definitions of lists. 2 3
ListElement class Drupal\config_translation\FormElement core/modules/config_translation/src/FormElement/ListElement.php Defines the list element for the configuration translation interface.
ListField class Drupal\options\Plugin\views\filter core/modules/options/src/Plugin/views/filter/ListField.php Filter handler which uses list-fields as options.
ListField class Drupal\options\Plugin\migrate\field\d7 core/modules/options/src/Plugin/migrate/field/d7/ListField.php Plugin annotation @MigrateField( id = "list", type_map = { "list_boolean" = "boolean", "list_integer" = "list_integer", "list_text" = "list_string", "list_float" = "list_float", }, core = {7}, source_module = "list", …
ListFloatItem class Drupal\options\Plugin\Field\FieldType core/modules/options/src/Plugin/Field/FieldType/ListFloatItem.php Plugin implementation of the 'list_float' field type.
ListingEmpty class Drupal\node\Plugin\views\area core/modules/node/src/Plugin/views/area/ListingEmpty.php Defines an area plugin to display a node/add link.
ListingEmpty class Drupal\block_content\Plugin\views\area core/modules/block_content/src/Plugin/views/area/ListingEmpty.php Defines an area plugin to display a block add link.
ListIntegerItem class Drupal\options\Plugin\Field\FieldType core/modules/options/src/Plugin/Field/FieldType/ListIntegerItem.php Plugin implementation of the 'list_integer' field type. 1
ListInterface interface Drupal\Core\TypedData core/lib/Drupal/Core/TypedData/ListInterface.php Interface for a list of typed data. 2 7
ListItemBase abstract class Drupal\options\Plugin\Field\FieldType core/modules/options/src/Plugin/Field/FieldType/ListItemBase.php Plugin base class inherited by the options field types. 3
ListNormalizer class Drupal\serialization\Normalizer core/modules/serialization/src/Normalizer/ListNormalizer.php Converts list objects to arrays. 1 1 2
ListNormalizerTest class Drupal\Tests\serialization\Unit\Normalizer core/modules/serialization/tests/src/Unit/Normalizer/ListNormalizerTest.php @coversDefaultClass \Drupal\serialization\Normalizer\ListNormalizer[[api-linebreak]] @group serialization
ListPlugin class Drupal\ckeditor5\Plugin\CKEditor5Plugin core/modules/ckeditor5/src/Plugin/CKEditor5Plugin/ListPlugin.php CKEditor 5 List plugin. 1 1
ListPluginTest class Drupal\Tests\ckeditor5\Unit core/modules/ckeditor5/tests/src/Unit/ListPluginTest.php @coversDefaultClass \Drupal\ckeditor5\Plugin\CKEditor5Plugin\ListPlugin[[api-linebreak]] @group ckeditor5 @internal
ListStringItem class Drupal\options\Plugin\Field\FieldType core/modules/options/src/Plugin/Field/FieldType/ListStringItem.php Plugin implementation of the 'list_string' field type.
Llama class Drupal\ckeditor_test\Plugin\CKEditorPlugin core/modules/ckeditor/tests/modules/src/Plugin/CKEditorPlugin/Llama.php Defines the "Llama" plugin, with a CKEditor "llama" feature. 4
LlamaButton class Drupal\ckeditor_test\Plugin\CKEditorPlugin core/modules/ckeditor/tests/modules/src/Plugin/CKEditorPlugin/LlamaButton.php Defines a "LlamaButton" plugin, with a toolbar builder-enabled "llama" feature.
LlamaContextual class Drupal\ckeditor_test\Plugin\CKEditorPlugin core/modules/ckeditor/tests/modules/src/Plugin/CKEditorPlugin/LlamaContextual.php Defines a "Llama" plugin, with a contextually enabled "llama" feature.
LlamaContextualAndButton class Drupal\ckeditor_test\Plugin\CKEditorPlugin core/modules/ckeditor/tests/modules/src/Plugin/CKEditorPlugin/LlamaContextualAndButton.php Defines a "LlamaContextualAndButton" plugin, with a "llama" feature.
LlamaCss class Drupal\ckeditor_test\Plugin\CKEditorPlugin core/modules/ckeditor/tests/modules/src/Plugin/CKEditorPlugin/LlamaCss.php Defines a "LlamaCss" plugin, with an associated "llama" CSS.
LoadLibraryController class Drupal\modernizr_deprecation_test\Controller core/modules/system/tests/modules/modernizr_deprecation_test/src/Controller/LoadLibraryController.php A page to facilitate library loading.
LoadMultipleTest class Drupal\Tests\taxonomy\Functional core/modules/taxonomy/tests/src/Functional/LoadMultipleTest.php Tests the loading of multiple taxonomy terms at once.
LoadTest class Drupal\Tests\file\Kernel core/modules/file/tests/src/Kernel/LoadTest.php Tests \Drupal\file\Entity\File::load().
Local class Drupal\Core\FileTransfer core/lib/Drupal/Core/FileTransfer/Local.php Defines the local connection class for copying files as the httpd user. 1 3
LocalActionDefault class Drupal\Core\Menu core/lib/Drupal/Core/Menu/LocalActionDefault.php Provides a default implementation for local action plugins. 6 7 2
LocalActionDefaultTest class Drupal\Tests\Core\Menu core/tests/Drupal/Tests/Core/Menu/LocalActionDefaultTest.php @coversDefaultClass \Drupal\Core\Menu\LocalActionDefault[[api-linebreak]] @group Menu
LocalActionInterface interface Drupal\Core\Menu core/lib/Drupal/Core/Menu/LocalActionInterface.php Defines an interface for menu local actions. 1
LocalActionManager class Drupal\Core\Menu core/lib/Drupal/Core/Menu/LocalActionManager.php Provides the default local action manager using YML as primary definition. 1 1 2
LocalActionManagerInterface interface Drupal\Core\Menu core/lib/Drupal/Core/Menu/LocalActionManagerInterface.php Manages discovery and instantiation of menu local action plugins. 1 2
LocalActionManagerTest class Drupal\Tests\Core\Menu core/tests/Drupal/Tests/Core/Menu/LocalActionManagerTest.php @coversDefaultClass \Drupal\Core\Menu\LocalActionManager[[api-linebreak]] @group Menu
LocalActionManagerTest class Drupal\KernelTests\Core\Menu core/tests/Drupal/KernelTests/Core/Menu/LocalActionManagerTest.php Tests the local action manager.
LocalActionsBlock class Drupal\Core\Menu\Plugin\Block core/lib/Drupal/Core/Menu/Plugin/Block/LocalActionsBlock.php Provides a block to display the local actions.
LocalActionTest class Drupal\menu_test\Plugin\Derivative core/modules/system/tests/modules/menu_test/src/Plugin/Derivative/LocalActionTest.php Test derivative to check local action title escaping. 1
LocalActionTest class Drupal\Tests\system\Functional\Menu core/modules/system/tests/src/Functional/Menu/LocalActionTest.php Tests local actions derived from router and added/altered via hooks.
LocalAwareRedirectResponseTrait trait Drupal\Core\Routing core/lib/Drupal/Core/Routing/LocalAwareRedirectResponseTrait.php Provides a trait which ensures that a URL is safe to redirect to.
Locale class Drupal\locale core/modules/locale/src/Locale.php Static service container wrapper for locale. 5
LocaleBuildTest class Drupal\Tests\locale\Kernel core/modules/locale/tests/src/Kernel/LocaleBuildTest.php Tests building the translatable project information.
LocaleConfigManager class Drupal\locale core/modules/locale/src/LocaleConfigManager.php Manages configuration supported in part by interface translation. 2 2
LocaleConfigManagerTest class Drupal\Tests\locale\Kernel core/modules/locale/tests/src/Kernel/LocaleConfigManagerTest.php Tests that the locale config manager operates correctly.
LocaleConfigSubscriber class Drupal\locale core/modules/locale/src/LocaleConfigSubscriber.php Updates strings translation when configuration translations change. 2
LocaleConfigSubscriberForeignTest class Drupal\Tests\locale\Kernel core/modules/locale/tests/src/Kernel/LocaleConfigSubscriberForeignTest.php Tests default configuration handling with a foreign default language.
LocaleConfigSubscriberTest class Drupal\Tests\locale\Kernel core/modules/locale/tests/src/Kernel/LocaleConfigSubscriberTest.php Tests that shipped configuration translations are updated correctly. 1
LocaleConfigTranslationImportTest class Drupal\Tests\locale\Functional core/modules/locale/tests/src/Functional/LocaleConfigTranslationImportTest.php Tests translation update's effects on configuration translations.
LocaleConfigTranslationTest class Drupal\Tests\locale\Functional core/modules/locale/tests/src/Functional/LocaleConfigTranslationTest.php Tests translation of configuration strings.
LocaleConfigurableLanguageManagerTest class Drupal\Tests\locale\Kernel core/modules/locale/tests/src/Kernel/LocaleConfigurableLanguageManagerTest.php Tests that the configurable language manager and locale operate correctly.
LocaleContentTest class Drupal\Tests\locale\Functional core/modules/locale/tests/src/Functional/LocaleContentTest.php Tests multilingual support for content types and individual nodes.
LocaleController class Drupal\locale\Controller core/modules/locale/src/Controller/LocaleController.php Return response for manual check translations.
LocaleDefaultConfigStorage class Drupal\locale core/modules/locale/src/LocaleDefaultConfigStorage.php Provides access to default configuration for locale integration. 2
LocaleEvent class Drupal\locale core/modules/locale/src/LocaleEvent.php Defines a Locale event. 1

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