Classes, traits, and interfaces - Drupal 11.1.x - Drupal Core

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
NodePreviewConverter class Drupal\node\ProxyClass\ParamConverter core/modules/node/src/ProxyClass/ParamConverter/NodePreviewConverter.php Provides a proxy class for \Drupal\node\ParamConverter\NodePreviewConverter.
NodePreviewConverter class Drupal\node\ParamConverter core/modules/node/src/ParamConverter/NodePreviewConverter.php Provides upcasting for a node entity in preview. 2
NodePreviewForm class Drupal\node\Form core/modules/node/src/Form/NodePreviewForm.php Contains a form for switching the view mode of a node during preview. 1
NodeProviderCollection

this class has been deprecated, and will be removed in 5.0.0. The use-case for this class comes from a pre-`phpstan/phpstan` and pre-`vimeo/psalm` ecosystem, in which type safety had to be mostly enforced at runtime: that is no longer necessary, now that you can safely verify your code to be correct, and use more generic types like `iterable<T>` instead.

 class Ramsey\Uuid\Provider\Node vendor/ramsey/uuid/src/Provider/Node/NodeProviderCollection.php A collection of NodeProviderInterface objects
NodeProviderInterface interface Ramsey\Uuid\Provider vendor/ramsey/uuid/src/Provider/NodeProviderInterface.php A node provider retrieves or generates a node ID 4 9
NodeReference class Drupal\migrate_drupal\Plugin\migrate\field\d6 core/modules/migrate_drupal/src/Plugin/migrate/field/d6/NodeReference.php MigrateField Plugin for Drupal 6 node reference fields.
NodeReference class Drupal\migrate_drupal\Plugin\migrate\field\d7 core/modules/migrate_drupal/src/Plugin/migrate/field/d7/NodeReference.php MigrateField plugin for Drupal 7 node_reference fields.
NodeRevision class Drupal\node\Plugin\views\wizard core/modules/node/src/Plugin/views/wizard/NodeRevision.php Tests creating node revision views with the wizard.
NodeRevision class Drupal\node\Plugin\migrate\source\d6 core/modules/node/src/Plugin/migrate/source/d6/NodeRevision.php Drupal 6 node revision source from database. 1
NodeRevision class Drupal\node\Plugin\migrate\source\d7 core/modules/node/src/Plugin/migrate/source/d7/NodeRevision.php Drupal 7 node revision source from database. 1
NodeRevisionDeleteForm class Drupal\node\Form core/modules/node/src/Form/NodeRevisionDeleteForm.php Provides a form for deleting a node revision. 1
NodeRevisionRevertForm class Drupal\node\Form core/modules/node/src/Form/NodeRevisionRevertForm.php Provides a form for reverting a node revision. 1 1
NodeRevisionRevertTranslationForm class Drupal\node\Form core/modules/node/src/Form/NodeRevisionRevertTranslationForm.php Provides a form for reverting a node revision for a single translation. 1
NodeRouteContext class Drupal\node\ContextProvider core/modules/node/src/ContextProvider/NodeRouteContext.php Sets the current node as a context on node routes. 2
NodeRouteProvider class Drupal\node\Entity core/modules/node/src/Entity/NodeRouteProvider.php Provides routes for nodes.
NodeRow class Drupal\node\Plugin\views\row core/modules/node/src/Plugin/views/row/NodeRow.php Plugin which performs a node_view on the resulting object.
Nodes final class Twig\Node vendor/twig/twig/src/Node/Nodes.php Represents a list of nodes. 14
NodeSearch class Drupal\node\Plugin\Search core/modules/node/src/Plugin/Search/NodeSearch.php Handles searching for node entities using the Search module index.
NodeSelection class Drupal\node\Plugin\EntityReferenceSelection core/modules/node/src/Plugin/EntityReferenceSelection/NodeSelection.php Provides specific access control for the node entity type.
NodeServiceProvider class Drupal\node core/modules/node/src/NodeServiceProvider.php Registers services in the container.
NodeStorage class Drupal\node core/modules/node/src/NodeStorage.php Defines the storage handler class for nodes. 1
NodeStorageInterface interface Drupal\node core/modules/node/src/NodeStorageInterface.php Defines an interface for node entity storage classes. 1 3
NodeStorageSchema class Drupal\node core/modules/node/src/NodeStorageSchema.php Defines the node schema handler. 1
NodeTermData class Drupal\taxonomy\Plugin\views\relationship core/modules/taxonomy/src/Plugin/views/relationship/NodeTermData.php Relationship handler to return the taxonomy terms of nodes.
NodeTestCase abstract class Twig\Test vendor/twig/twig/src/Test/NodeTestCase.php
NodeTokensHooks class Drupal\node\Hook core/modules/node/src/Hook/NodeTokensHooks.php Hook implementations for node.
NodeTranslationExceptionSubscriber class Drupal\node\EventSubscriber core/modules/node/src/EventSubscriber/NodeTranslationExceptionSubscriber.php Redirect node translations that have been consolidated by migration. 1
NodeTranslationHandler class Drupal\node core/modules/node/src/NodeTranslationHandler.php Defines the translation handler for nodes. 1
NodeTranslationMigrateSubscriber class Drupal\node\EventSubscriber core/modules/node/src/EventSubscriber/NodeTranslationMigrateSubscriber.php Creates a key value collection for migrated node translation mappings. 1
NodeTraverser final class Twig vendor/twig/twig/src/NodeTraverser.php A node traverser. 1
NodeTraverser class PhpParser vendor/nikic/php-parser/lib/PhpParser/NodeTraverser.php 5
NodeTraverser final class PHPStan\PhpDocParser\Ast vendor/phpstan/phpdoc-parser/src/Ast/NodeTraverser.php Inspired by https://github.com/nikic/PHP-Parser/tree/36a6dcd04e7b0285e8f0868f44bd4927802f7df1 3
NodeTraverserInterface interface PhpParser vendor/nikic/php-parser/lib/PhpParser/NodeTraverserInterface.php 1
NodeType class Drupal\node\Plugin\migrate\source\d6 core/modules/node/src/Plugin/migrate/source/d6/NodeType.php Drupal 6 Node types source from database.
NodeType class Drupal\node\Plugin\migrate\source\d7 core/modules/node/src/Plugin/migrate/source/d7/NodeType.php Drupal 7 Node types source from database.
NodeType class Drupal\node\Entity core/modules/node/src/Entity/NodeType.php Defines the Node type configuration entity. 4
NodeTypeAccessControlHandler class Drupal\node core/modules/node/src/NodeTypeAccessControlHandler.php Defines the access control handler for the node type entity type. 1
NodeTypeDeleteConfirm class Drupal\node\Form core/modules/node/src/Form/NodeTypeDeleteConfirm.php Provides a form for content type deletion. 1
NodeTypeForm class Drupal\node core/modules/node/src/NodeTypeForm.php Form handler for node type forms. 1
NodeTypeInterface interface Drupal\node core/modules/node/src/NodeTypeInterface.php Provides an interface defining a node type entity. 1 4
NodeTypeListBuilder class Drupal\node core/modules/node/src/NodeTypeListBuilder.php Defines a class to build a listing of node type entities. 1
NodeTypeMapper class Drupal\node\ConfigTranslation core/modules/node/src/ConfigTranslation/NodeTypeMapper.php Provides a configuration mapper for node types.
NodeUpdate7008 class Drupal\node\Plugin\migrate\process\d6 core/modules/node/src/Plugin/migrate/process/d6/NodeUpdate7008.php Split the 'administer nodes' permission from 'access content overview'.
NodeViewBuilder class Drupal\node core/modules/node/src/NodeViewBuilder.php View builder handler for nodes. 1
NodeViewController class Drupal\node\Controller core/modules/node/src/Controller/NodeViewController.php Defines a controller to render a single node.
NodeViewsData class Drupal\node core/modules/node/src/NodeViewsData.php Provides the views data for the node entity type. 1
NodeViewsExecutionHooks class Drupal\node\Hook core/modules/node/src/Hook/NodeViewsExecutionHooks.php Hook implementations for node.
NodeViewsHooks class Drupal\node\Hook core/modules/node/src/Hook/NodeViewsHooks.php Hook implementations for node.
NodeVisitor interface PhpParser vendor/nikic/php-parser/lib/PhpParser/NodeVisitor.php 1 1
NodeVisitor interface PHPStan\PhpDocParser\Ast vendor/phpstan/phpdoc-parser/src/Ast/NodeVisitor.php Inspired by https://github.com/nikic/PHP-Parser/tree/36a6dcd04e7b0285e8f0868f44bd4927802f7df1 1