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
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core/
core.api.php, line 1529
| Name | Deprecated | Object type | Namespace | File name | Summary | Direct uses | Use statements | Strings |
|---|---|---|---|---|---|---|---|---|
| DeprecationHookAttributeTestHooks | class | Drupal\deprecation_hook_attribute_test\Hook | core/ |
Implements hooks for the deprecation hook attribute test. | ||||
| Depth | class | Drupal\comment\Plugin\views\field | core/ |
Field handler to display the depth of a comment. | ||||
| DerivablePluginDefinitionInterface | interface | Drupal\Component\Plugin\Definition | core/ |
Provides an interface for a derivable plugin definition. | 2 | 4 | ||
| DerivativeDiscoveryDecorator | class | Drupal\Component\Plugin\Discovery | core/ |
Base class providing the tools for a plugin discovery to be derivative aware. | 1 | 3 | ||
| DerivativeDiscoveryDecoratorTest | class | Drupal\Tests\Core\Plugin\Discovery | core/ |
Unit tests for the derivative discovery decorator. | ||||
| DerivativeInspectionInterface | interface | Drupal\Component\Plugin | core/ |
Provides a plugin interface for providing derivative metadata inspection. | 8 | 12 | ||
| DerivativeTest | class | Drupal\KernelTests\Core\Plugin | core/ |
Tests that derivative plugins are correctly discovered. | ||||
| DerivedToolkit | class | Drupal\image_test\Plugin\ImageToolkit | core/ |
Provides a derivative of TestToolkit. | ||||
| DeriverBase | abstract class | Drupal\Component\Plugin\Derivative | core/ |
Provides a basic deriver. | 52 | 52 | ||
| DeriverInterface | interface | Drupal\Component\Plugin\Derivative | core/ |
Provides additional plugin definitions based on an existing definition. | 7 | 6 | ||
| Desaturate | class | Drupal\system\Plugin\ImageToolkit\Operation\gd | core/ |
Defines GD2 Desaturate operation. | ||||
| DesaturateImageEffect | class | Drupal\image\Plugin\ImageEffect | core/ |
Desaturates (grayscale) an image resource. | ||||
| DescriptionAwareFileFormatterBase | abstract class | Drupal\file\Plugin\Field\FieldFormatter | core/ |
Base class for file formatters that have to deal with file descriptions. | 2 | |||
| DestinationBase | abstract class | Drupal\migrate\Plugin\migrate\destination | core/ |
Base class for migrate destination classes. | 9 | 5 | ||
| DestinationCategoryTest | class | Drupal\Tests\migrate_drupal\Kernel\Plugin\migrate | core/ |
Tests that all migrations are tagged as either content or configuration. | ||||
| DestinationTest | class | Drupal\Tests\system\Functional\Routing | core/ |
Tests for $_GET['destination'] and $_REQUEST['destination'] validation. | ||||
| Destructable | final class | Drupal\destructable_test | core/ |
Manages a semaphore file and performs an action upon destruction. | 1 | |||
| DestructableInterface | interface | Drupal\Core | core/ |
The interface for services that need explicit destruction. | 10 | 8 | ||
| DestructableServiceTest | class | Drupal\FunctionalTests\HttpKernel | core/ |
Tests invocation of services performing deferred tasks after response flush. | ||||
| Details | class | Drupal\Core\Render\Element | core/ |
Provides a render element for a details element, similar to a fieldset. | ||||
| DevelopmentSettingsForm | class | Drupal\system\Form | core/ |
Configure development settings for this site. | 1 | |||
| DevelopmentSettingsFormTest | class | Drupal\Tests\system\FunctionalJavascript\Form | core/ |
Tests development settings form items for expected behavior. | ||||
| DevelopmentSettingsPass | class | Drupal\Core\DependencyInjection\Compiler | core/ |
Defines a compiler pass to register development settings. | 1 | |||
| DevReleaseTest | class | Drupal\Tests\update\Kernel | core/ |
Tests the project data when the installed version is a dev version. | ||||
| DHooks | class | Drupal\ddd_hook_order_test\Hook | core/ |
Provides hook implementations for testing the execution order of hooks. | 1 | |||
| DialogDeprecationsTest | class | Drupal\FunctionalJavascriptTests\Dialog | core/ |
Tests jQuery events deprecations. | ||||
| DialogFormLink | class | Drupal\ajax_forms_test\Controller | core/ |
Test class to create dialog form link. | ||||
| DialogPositionTest | class | Drupal\FunctionalJavascriptTests\Dialog | core/ |
Tests the JavaScript functionality of the dialog position. | ||||
| DialogRenderer | class | Drupal\Core\Render\MainContent | core/ |
Default main content renderer for dialog requests. | 2 | 2 | ||
| DialogTest | class | Drupal\FunctionalJavascriptTests\Ajax | core/ |
Performs tests on opening and manipulating dialogs via AJAX commands. | ||||
| DialogTestEntityEditForm | class | Drupal\dialog_test | core/ |
Base form for dialog test entity form edit form. | 1 | |||
| DialogTestEntityForm | class | Drupal\dialog_test\Entity | core/ |
Define the dialog test entity form entity. | ||||
| Diff | class | Drupal\Component\Diff | core/ |
Class representing a 'diff' between two sequences of strings. | 1 | 3 | ||
| DiffArray | class | Drupal\Component\Utility | core/ |
Provides helpers to perform diffs on multi dimensional arrays. | 3 | |||
| DiffArrayTest | class | Drupal\Tests\Core\Common | core/ |
Tests the DiffArray helper class. | ||||
| DiffFormatter | class | Drupal\Component\Diff | core/ |
A class to format Diffs | 1 | 2 | ||
| DiffFormatter | class | Drupal\Core\Diff | core/ |
Diff formatter which uses returns output that can be rendered to a table. | 1 | 2 | ||
| DiffFormatterTest | class | Drupal\Tests\Component\Diff | core/ |
Test DiffFormatter classes. | ||||
| DiffOp | class | Drupal\Component\Diff\Engine | core/ |
@todo document @private @subpackage DifferenceEngine | 4 | 1 | ||
| DiffOpAdd | class | Drupal\Component\Diff\Engine | core/ |
@todo document @private @subpackage DifferenceEngine | 2 | |||
| DiffOpChange | class | Drupal\Component\Diff\Engine | core/ |
@todo document @private @subpackage DifferenceEngine | 2 | |||
| DiffOpCopy | class | Drupal\Component\Diff\Engine | core/ |
@todo document @private @subpackage DifferenceEngine | 3 | |||
| DiffOpDelete | class | Drupal\Component\Diff\Engine | core/ |
@todo document @private @subpackage DifferenceEngine | 2 | |||
| DiffOpOutputBuilder | final class | Drupal\Component\Diff | core/ |
Returns a diff as an array of DiffOp operations. | 1 | |||
| DiffOpOutputBuilderTest | class | Drupal\Tests\Component\Diff | core/ |
Tests Drupal\Component\Diff\DiffOpOutputBuilder. | ||||
| DirectoryNotReadyException | class | Drupal\Core\File\Exception | core/ |
Exception thrown when a file's destination directory is not ready. | 3 | |||
| DirectoryTest | class | Drupal\KernelTests\Core\File | core/ |
Tests operations dealing with directories. | 1 | |||
| DirectoryWithMetadataDiscovery | class | Drupal\Core\Plugin\Discovery | core/ |
Does the actual finding of the directories with metadata files. | ||||
| DirectoryWithMetadataPluginDiscovery | class | Drupal\Core\Plugin\Discovery | core/ |
Discover directories that contain a specific metadata file. | 1 | |||
| DirectWritePreconditionBypass | final class | Drupal\package_manager | core/ |
Allows certain Composer Stager preconditions to be bypassed. | 1 | 3 |
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