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
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core/
core.api.php, line 1518
| Name | Deprecated | Object type | Namespace | File name | Summary | Direct uses | Use statements | Strings |
|---|---|---|---|---|---|---|---|---|
| Destructable | final class | Drupal\destructable_test | core/ |
1 | ||||
| DestructableInterface | interface | Drupal\Core | core/ |
The interface for services that need explicit destruction. | 11 | 9 | ||
| 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. | ||||
| 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. | ||||
| 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. | ||||
| DiffEngine | in drupal:10.1.0 and is removed from drupal:11.0.0. Use sebastianbergmann/diff instead. |
class | Drupal\Component\Diff\Engine | core/ |
Class used internally by Diff to actually compute the diffs. | 1 | ||
| DiffEngineTest | class | Drupal\Tests\Component\Diff\Engine | core/ |
Test DiffEngine class. | ||||
| DiffFormatter | class | Drupal\Core\Diff | core/ |
Diff formatter which uses returns output that can be rendered to a table. | 1 | 2 | ||
| DiffFormatter | class | Drupal\Component\Diff | core/ |
A class to format Diffs | 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 | 2 | ||
| DiffOpAdd | class | Drupal\Component\Diff\Engine | core/ |
@todo document @private @subpackage DifferenceEngine | 3 | |||
| DiffOpChange | class | Drupal\Component\Diff\Engine | core/ |
@todo document @private @subpackage DifferenceEngine | 3 | |||
| DiffOpCopy | class | Drupal\Component\Diff\Engine | core/ |
@todo document @private @subpackage DifferenceEngine | 4 | |||
| DiffOpDelete | class | Drupal\Component\Diff\Engine | core/ |
@todo document @private @subpackage DifferenceEngine | 3 | |||
| DiffOpOutputBuilder | final class | Drupal\Component\Diff | core/ |
Returns a diff as an array of DiffOp operations. | 1 | |||
| DiffOpOutputBuilderTest | class | Drupal\Tests\Component\Diff | core/ |
@coversDefaultClass \Drupal\Component\Diff\DiffOpOutputBuilder[[api-linebreak]] | ||||
| DiffOpTest | class | Drupal\Tests\Component\Diff\Engine | core/ |
Test DiffOp base class. | ||||
| DirectoryNotReadyException | class | Drupal\Core\File\Exception | core/ |
Exception thrown when a file's destination directory is not ready. | 2 | |||
| 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 | |||
| DisabledDisplayTest | class | Drupal\Tests\views\Functional\Plugin | core/ |
Tests the ability to disable and enable view displays. | ||||
| DisallowBasicAuthRequests | class | Drupal\basic_auth\PageCache | core/ |
Cache policy for pages served from basic auth. | 2 | |||
| DiscardLayoutChangesForm | class | Drupal\layout_builder\Form | core/ |
Discards any pending changes to the layout. | ||||
| DiscoverableInterface | interface | Drupal\Component\Discovery | core/ |
Interface for classes providing a type of discovery. | 2 | |||
| DiscoverServiceProvidersTest | class | Drupal\Tests\Core\DrupalKernel | core/ |
@coversDefaultClass \Drupal\Core\DrupalKernel[[api-linebreak]] @group DrupalKernel | ||||
| DiscoveryCachedTrait | trait | Drupal\Component\Plugin\Discovery | core/ |
2 | ||||
| DiscoveryCachedTraitMockableClass | class | Drupal\Tests\Component\Plugin\Discovery | core/ |
A class using the DiscoveryCachedTrait for mocking purposes. | ||||
| DiscoveryCachedTraitTest | class | Drupal\Tests\Component\Plugin\Discovery | core/ |
@coversDefaultClass \Drupal\Component\Plugin\Discovery\DiscoveryCachedTrait[[api-linebreak]] @uses \Drupal\Component\Plugin\Discovery\DiscoveryTrait @group Plugin | ||||
| DiscoveryException | class | Drupal\Component\Discovery | core/ |
Exception thrown during discovery if the data is invalid. | 3 | |||
| DiscoveryInterface | interface | Drupal\Component\Plugin\Discovery | core/ |
Defines the minimum requirements for a plugin discovery component. | 18 | 25 | ||
| DiscoveryTest1 | class | com\example\PluginNamespace | core/ |
Provides a custom test plugin. | ||||
| DiscoveryTestBase | abstract class | Drupal\KernelTests\Core\Plugin\Discovery | core/ |
Base class for plugin discovery tests. | 4 | |||
| DiscoveryTrait | trait | Drupal\Component\Plugin\Discovery | core/ |
11 | ||||
| DiscoveryTraitMockableClass | class | Drupal\Tests\Component\Plugin\Discovery | core/ |
A class using the DiscoveryTrait for mocking purposes. | ||||
| DiscoveryTraitTest | class | Drupal\Tests\Component\Plugin\Discovery | core/ |
@group Plugin @coversDefaultClass \Drupal\Component\Plugin\Discovery\DiscoveryTrait[[api-linebreak]] | ||||
| Display | class | Drupal\views_ui\Form\Ajax | core/ |
Provides a form for editing the Views display. | ||||
| DisplayApiTest | class | Drupal\Tests\field\Kernel | core/ |
Tests the field display API. | ||||
| DisplayAttachmentTest | class | Drupal\Tests\views_ui\Functional | core/ |
Tests the UI for the attachment display plugin. |
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