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

core/core.api.php, line 1529

Name Deprecated Object type Namespace File name Summary Direct uses Use statements Strings
TraversableTypedDataInterface interface Drupal\Core\TypedData core/lib/Drupal/Core/TypedData/TraversableTypedDataInterface.php An interface for typed data objects that can be traversed. 3 8
TreeConfigTargetForm class Drupal\form_test\Form core/modules/system/tests/modules/form_test/src/Form/TreeConfigTargetForm.php Provides a form for configuring preferences and dynamically updating select list options via AJAX. 1 1
TRexEditor class Drupal\editor_test\Plugin\Editor core/modules/editor/tests/modules/editor_test/src/Plugin/Editor/TRexEditor.php Defines a Tyrannosaurus-Rex powered text editor for testing purposes.
TriggeringElementProgrammedTest class Drupal\KernelTests\Core\Form core/tests/Drupal/KernelTests/Core/Form/TriggeringElementProgrammedTest.php Tests detection of triggering_element for programmed form submissions.
TriggeringElementTest class Drupal\Tests\system\FunctionalJavascript\Form core/modules/system/tests/src/FunctionalJavascript/Form/TriggeringElementTest.php Tests that FAPI correctly determines the triggering element.
TriggerPreviewCommand class Drupal\views\Ajax core/modules/views/src/Ajax/TriggerPreviewCommand.php Provides an AJAX command for triggering the views live preview. 1
Truncate class Drupal\pgsql\Driver\Database\pgsql core/modules/pgsql/src/Driver/Database/pgsql/Truncate.php PostgreSQL implementation of \Drupal\Core\Database\Query\Truncate.
Truncate class Drupal\core_fake\Driver\Database\CoreFakeWithAllCustomClasses core/tests/fixtures/database_drivers/module/core_fake/src/Driver/Database/CoreFakeWithAllCustomClasses/Truncate.php CoreFakeWithAllCustomClasses implementation of \Drupal\Core\Database\Truncate.
Truncate class Drupal\Core\Database\Query core/lib/Drupal/Core/Database/Query/Truncate.php General class for an abstracted TRUNCATE operation. 3 5
Truncate class Drupal\sqlite\Driver\Database\sqlite core/modules/sqlite/src/Driver/Database/sqlite/Truncate.php SQLite implementation of \Drupal\Core\Database\Query\Truncate.
TrustedCallback class Drupal\Core\Security\Attribute core/lib/Drupal/Core/Security/Attribute/TrustedCallback.php Attribute to tell that a method is a trusted callback. 15
TrustedCallbackInterface interface Drupal\Core\Security core/lib/Drupal/Core/Security/TrustedCallbackInterface.php Interface to declare trusted callbacks. 49 50
TrustedHostsRequestFactory class Drupal\Core\Http core/lib/Drupal/Core/Http/TrustedHostsRequestFactory.php Provides a request factory for requests using host verification. 2
TrustedHostsRequestFactoryTest class Drupal\Tests\Core\Http core/tests/Drupal/Tests/Core/Http/TrustedHostsRequestFactoryTest.php Tests the trusted hosts request factory.
TrustedHostsTest class Drupal\Tests\system\Functional\System core/modules/system/tests/src/Functional/System/TrustedHostsTest.php Tests output on the status overview page.
TrustedHostsTest class Drupal\Tests\shortcut\Functional core/modules/shortcut/tests/src/Functional/TrustedHostsTest.php Tests output on the status overview page.
TrustedHostsTestController class Drupal\trusted_hosts_test\Controller core/modules/system/tests/modules/trusted_hosts_test/src/Controller/TrustedHostsTestController.php Provides a test controller for testing the trusted hosts setting.
TrustedInterface interface Drupal\Tests\Core\Security core/tests/Drupal/Tests/Core/Security/DoTrustedCallbackTraitTest.php Interface representing classes with trusted callbacks. 1
TrustedMethods class Drupal\Tests\Core\Security core/tests/Drupal/Tests/Core/Security/DoTrustedCallbackTraitTest.php Test class with implemented trusted callbacks.
TrustedObject class Drupal\Tests\Core\Security core/tests/Drupal/Tests/Core/Security/DoTrustedCallbackTraitTest.php Class with a trusted interface implementation with callback.
TrustedRedirectResponse class Drupal\Core\Routing core/lib/Drupal/Core/Routing/TrustedRedirectResponse.php Provides a redirect response which contains trusted URLs. 6
TrustedRedirectResponseTest class Drupal\Tests\Core\Routing core/tests/Drupal/Tests/Core/Routing/TrustedRedirectResponseTest.php Tests Drupal\Core\Routing\TrustedRedirectResponse.
TurtleLazyBuilder class Drupal\Tests\big_pipe\Unit\Render core/modules/big_pipe/tests/src/Unit/Render/FiberPlaceholderTest.php Test class for testing fiber placeholders.
TwigAllowed final class Drupal\Core\Template\Attribute core/lib/Drupal/Core/Template/Attribute/TwigAllowed.php Allow twig access to methods. 2
TwigAllowListTest class Drupal\KernelTests\Core\Theme core/tests/Drupal/KernelTests/Core/Theme/TwigAllowListTest.php Tests the allowed list of entity properties.
TwigAttributesTest class Drupal\KernelTests\Core\Theme core/tests/Drupal/KernelTests/Core/Theme/TwigAttributesTest.php Tests Twig with Attribute objects.
TwigDebugMarkupTest class Drupal\Tests\system\Functional\Theme core/modules/system/tests/src/Functional/Theme/TwigDebugMarkupTest.php Tests for Twig debug markup.
TwigDeprecationsTest class Drupal\KernelTests\Core\Theme core/tests/Drupal/KernelTests/Core/Theme/TwigDeprecationsTest.php Tests deprecating variables passed to twig templates.
TwigEnvironment class Drupal\Core\Template core/lib/Drupal/Core/Template/TwigEnvironment.php A class that defines a Twig environment for Drupal. 4 2
TwigEnvironmentTest class Drupal\Tests\system\Kernel\Theme core/modules/system/tests/src/Kernel/Theme/TwigEnvironmentTest.php Tests Twig environment.
TwigEnvironmentTest class Drupal\KernelTests\Core\Theme core/tests/Drupal/KernelTests/Core/Theme/TwigEnvironmentTest.php Tests the twig environment.
TwigEnvironmentTest class Drupal\Tests\system\Functional\Theme core/modules/system/tests/src/Functional/Theme/TwigEnvironmentTest.php Tests Twig environment.
TwigExtension class Drupal\Core\Template core/lib/Drupal/Core/Template/TwigExtension.php A class providing Drupal Twig extensions. 1 2
TwigExtensionPass class Drupal\Core\DependencyInjection\Compiler core/lib/Drupal/Core/DependencyInjection/Compiler/TwigExtensionPass.php Adds the twig_extension_hash parameter to the container. 1
TwigExtensionTest class Drupal\Tests\system\Functional\Theme core/modules/system/tests/src/Functional/Theme/TwigExtensionTest.php Tests Twig extensions.
TwigExtensionTest class Drupal\Tests\Core\Template core/tests/Drupal/Tests/Core/Template/TwigExtensionTest.php Tests the twig extension.
TwigExtensionTestController class Drupal\twig_extension_test core/modules/system/tests/modules/twig_extension_test/src/TwigExtensionTestController.php Controller routines for Twig extension test routes.
TwigExtensionTestHooks class Drupal\twig_extension_test\Hook core/modules/system/tests/modules/twig_extension_test/src/Hook/TwigExtensionTestHooks.php Hook implementations for twig_extension_test.
TwigExtensionTestString class Drupal\Tests\Core\Template core/tests/Drupal/Tests/Core/Template/TwigExtensionTest.php A simple string holder for testing Twig extension.
TwigFilterTest class Drupal\Tests\system\Kernel\Theme core/modules/system/tests/src/Kernel/Theme/TwigFilterTest.php Tests Drupal's Twig filters.
TwigIncludeTest class Drupal\Tests\system\Kernel\Theme core/modules/system/tests/src/Kernel/Theme/TwigIncludeTest.php Tests including files in Twig templates.
TwigLoaderTest class Drupal\Tests\system\Kernel\Theme core/modules/system/tests/src/Kernel/Theme/TwigLoaderTest.php Tests adding Twig loaders.
TwigMarkupInterfaceTest class Drupal\KernelTests\Core\Theme core/tests/Drupal/KernelTests/Core/Theme/TwigMarkupInterfaceTest.php Tests Twig with MarkupInterface objects.
TwigNamespaceTest class Drupal\Tests\system\Kernel\Theme core/modules/system/tests/src/Kernel/Theme/TwigNamespaceTest.php Tests Twig namespaces.
TwigNodeCheckDeprecations class Drupal\Core\Template core/lib/Drupal/Core/Template/TwigNodeCheckDeprecations.php A node that checks deprecated variable usage.
TwigNodeTrans class Drupal\Core\Template core/lib/Drupal/Core/Template/TwigNodeTrans.php A class that defines the Twig 'trans' tag for Drupal. 2
TwigNodeVisitor class Drupal\Core\Template core/lib/Drupal/Core/Template/TwigNodeVisitor.php Provides a TwigNodeVisitor to change the generated parse-tree.
TwigNodeVisitorCheckDeprecations class Drupal\Core\Template core/lib/Drupal/Core/Template/TwigNodeVisitorCheckDeprecations.php Provides a Node Visitor to trigger errors if deprecated variables are used.
TwigPhpStorageCache class Drupal\Core\Template core/lib/Drupal/Core/Template/TwigPhpStorageCache.php Provides an alternate cache storage for Twig using PhpStorage. 1
TwigRawTest class Drupal\Tests\system\Kernel\Theme core/modules/system/tests/src/Kernel/Theme/TwigRawTest.php Tests Twig 'raw' filter.

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