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

core/core.api.php, line 1518

Name	Deprecated	Object type	Namespace	File name	Summary	Direct uses	Use statements	Strings
Upsert		abstract class	Drupal\Core\Database\Query	core/lib/Drupal/Core/Database/Query/Upsert.php	General class for an abstracted "Upsert" (UPDATE or INSERT) query operation.	5	7
Upsert		class	Drupal\core_fake\Driver\Database\CoreFakeWithAllCustomClasses	core/tests/fixtures/database_drivers/module/core_fake/src/Driver/Database/CoreFakeWithAllCustomClasses/Upsert.php	CoreFakeWithAllCustomClasses implementation of \Drupal\Core\Database\Upsert.
UpsertTest		class	Drupal\KernelTests\Core\Database	core/tests/Drupal/KernelTests/Core/Database/UpsertTest.php	Tests the Upsert query builder.
Uri		class	Drupal\Core\TypedData\Plugin\DataType	core/lib/Drupal/Core/TypedData/Plugin/DataType/Uri.php	The URI data type.		1	1
UriDependentTestImageEffect		class	Drupal\image_module_test\Plugin\ImageEffect	core/modules/image/tests/modules/image_module_test/src/Plugin/ImageEffect/UriDependentTestImageEffect.php	Performs an image operation that depends on the URI of the original image.
UriInterface		interface	Drupal\Core\TypedData\Type	core/lib/Drupal/Core/TypedData/Type/UriInterface.php	Interface for URIs.	1	3
UriItem		class	Drupal\Core\Field\Plugin\Field\FieldType	core/lib/Drupal/Core/Field/Plugin/Field/FieldType/UriItem.php	Defines the 'uri' entity field type.	1	3
UriItemTest		class	Drupal\Tests\Core\Field	core/tests/Drupal/Tests/Core/Field/UriItemTest.php	Defines a test for the UriItem field-type.
UriItemTest		class	Drupal\Tests\field\Kernel\Uri	core/modules/field/tests/src/Kernel/Uri/UriItemTest.php	Tests URI field functionality.
UriLinkFormatter		class	Drupal\Core\Field\Plugin\Field\FieldFormatter	core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/UriLinkFormatter.php	Plugin implementation of the 'uri_link' formatter.
UriWidget		class	Drupal\Core\Field\Plugin\Field\FieldWidget	core/lib/Drupal/Core/Field/Plugin/Field/FieldWidget/UriWidget.php	Plugin implementation of the 'uri' widget.
Url		class	Drupal\Core\Render\Element	core/lib/Drupal/Core/Render/Element/Url.php	Provides a form element for input of a URL.
Url		class	Drupal\Core	core/lib/Drupal/Core/Url.php	Defines an object that holds information about a URL.	1	732
Url		class	Drupal\views\Plugin\views\field	core/modules/views/src/Plugin/views/field/Url.php	Field handler to provide simple renderer that turns a URL into a clickable link.
UrlAlias		class	Drupal\path\Plugin\migrate\source\d6	core/modules/path/src/Plugin/migrate/source/d6/UrlAlias.php	Drupal 6 URL aliases source from database.
UrlAlias		class	Drupal\path\Plugin\migrate\source\d7	core/modules/path/src/Plugin/migrate/source/d7/UrlAlias.php	Drupal 7 URL aliases source from database.
UrlAliasBase		abstract class	Drupal\path\Plugin\migrate\source	core/modules/path/src/Plugin/migrate/source/UrlAliasBase.php	Base class for the url_alias source plugins.	2	2
UrlAliasTest		class	Drupal\Tests\path\Kernel\Plugin\migrate\source\d6	core/modules/path/tests/src/Kernel/Plugin/migrate/source/d6/UrlAliasTest.php	Tests the d6_url_alias source plugin.
UrlAliasTest		class	Drupal\Tests\path\Kernel\Plugin\migrate\source\d7	core/modules/path/tests/src/Kernel/Plugin/migrate/source/d7/UrlAliasTest.php	Tests the d7_url_alias source plugin.
UrlAlterFunctionalTest		class	Drupal\Tests\path_alias\Functional	core/modules/path_alias/tests/src/Functional/UrlAlterFunctionalTest.php	Tests altering the inbound path and the outbound path.
UrlAlterFunctionalTest		class	Drupal\Tests\forum\Functional	core/modules/forum/tests/src/Functional/UrlAlterFunctionalTest.php	Tests altering the inbound path and the outbound path.
UrlAlterTest		class	Drupal\KernelTests\Core\Path	core/tests/Drupal/KernelTests/Core/Path/UrlAlterTest.php	Tests the capability to alter URLs.
UrlBubbleableMetadataBubblingTest		class	Drupal\Tests\system\Functional\Render	core/modules/system/tests/src/Functional/Render/UrlBubbleableMetadataBubblingTest.php	Tests that URL bubbleable metadata is correctly bubbled.
UrlCacheContext		class	Drupal\Core\Cache\Context	core/lib/Drupal/Core/Cache/Context/UrlCacheContext.php	Defines the UrlCacheContext service, for "per page" caching.			2
UrlConversionTest		class	Drupal\Tests\Core\Database	core/tests/Drupal/Tests/Core/Database/UrlConversionTest.php	Tests for database URL to/from database connection array conversions.
UrlEncode		class	Drupal\migrate\Plugin\migrate\process	core/modules/migrate/src/Plugin/migrate/process/UrlEncode.php	URL-encodes the input value.		1
UrlEncodeTest		class	Drupal\Tests\migrate\Unit\process	core/modules/migrate/tests/src/Unit/process/UrlEncodeTest.php	@coversDefaultClass \Drupal\migrate\Plugin\migrate\process\UrlEncode[[api-linebreak]] @group file
UrlGenerator		class	Drupal\Core\Routing	core/lib/Drupal/Core/Routing/UrlGenerator.php	Generates URLs from route names and parameters.	1	4	2
UrlGeneratorInterface		interface	Drupal\Core\Routing	core/lib/Drupal/Core/Routing/UrlGeneratorInterface.php	Defines an interface for generating a URL from a route or system path.	3	17
UrlGeneratorTest		class	Drupal\Tests\Core\Routing	core/tests/Drupal/Tests/Core/Routing/UrlGeneratorTest.php	Confirm that the UrlGenerator is functioning properly.	1	1
UrlHelper		class	Drupal\Component\Utility	core/lib/Drupal/Component/Utility/UrlHelper.php	Helper class URL based methods.		80
UrlHelperTest		class	Drupal\Tests\Component\Utility	core/tests/Drupal/Tests/Component/Utility/UrlHelperTest.php	@group Utility
UrlIntegrationTest		class	Drupal\KernelTests\Core\Routing	core/tests/Drupal/KernelTests/Core/Routing/UrlIntegrationTest.php	Tests the URL object integration into the access system.
UrlMatcher		class	Drupal\Core\Routing	core/lib/Drupal/Core/Routing/UrlMatcher.php	Drupal-specific URL Matcher; handles the Drupal "system path" mapping.	1
UrlPlainFormatter		class	Drupal\file\Plugin\Field\FieldFormatter	core/modules/file/src/Plugin/Field/FieldFormatter/UrlPlainFormatter.php	Plugin implementation of the 'file_url_plain' formatter.
UrlResolver		class	Drupal\media\OEmbed	core/modules/media/src/OEmbed/UrlResolver.php	Converts oEmbed media URLs into endpoint-specific resource URLs.	1	1	2
UrlResolver		class	Drupal\media_test_oembed	core/modules/media/tests/modules/media_test_oembed/src/UrlResolver.php	Overrides the oEmbed URL resolver service for testing purposes.		1
UrlResolverInterface		interface	Drupal\media\OEmbed	core/modules/media/src/OEmbed/UrlResolverInterface.php	Defines the interface for the oEmbed URL resolver service.	1	7
UrlResolverTest		class	Drupal\Tests\media\Functional	core/modules/media/tests/src/Functional/UrlResolverTest.php	Tests the oEmbed URL resolver service.
UrlTest		class	Drupal\Tests\Core	core/tests/Drupal/Tests/Core/UrlTest.php	@coversDefaultClass \Drupal\Core\Url[[api-linebreak]] @group UrlTest
UrlTest		class	Drupal\Tests\system\Kernel\Common	core/modules/system/tests/src/Kernel/Common/UrlTest.php	Tests the Url object.
UrlTest		class	Drupal\Tests\system\Functional\Form	core/modules/system/tests/src/Functional/Form/UrlTest.php	Tests the form API URL element.
UrlTest		class	Drupal\Tests\system\Functional\Common	core/modules/system/tests/src/Functional/Common/UrlTest.php	Confirm that the link generator works correctly.
UrlTestEntity		class	Drupal\Tests\Core\Entity	core/tests/Drupal/Tests/Core/Entity/EntityUrlTest.php		1
UrlTransformRelativeTest		class	Drupal\KernelTests\Core\File	core/tests/Drupal/KernelTests/Core/File/UrlTransformRelativeTest.php	Tests URL transform to relative.
UsageTest		class	Drupal\Tests\file\Kernel	core/modules/file/tests/src/Kernel/UsageTest.php	Tests file usage functions.
UseCacheBackendTrait		trait	Drupal\Core\Cache	core/lib/Drupal/Core/Cache/UseCacheBackendTrait.php	Provides methods to use a cache backend while respecting a 'use caches' flag.		4
Used		final class	Drupal\Tests\Component\Annotation\Doctrine\Fixtures\Attribute	core/tests/Drupal/Tests/Component/Annotation/Doctrine/Fixtures/Attribute/Used.php	#[ExampleAttribute]
UsedAs		final class	Drupal\Tests\Component\Annotation\Doctrine\Fixtures\Attribute	core/tests/Drupal/Tests/Component/Annotation/Doctrine/Fixtures/Attribute/UsedAs.php	#[ClassAttribute]
UsedAsQualified		final class	Drupal\Tests\Component\Annotation\Doctrine\Fixtures\Attribute	core/tests/Drupal/Tests/Component/Annotation/Doctrine/Fixtures/Attribute/UsedAsQualified.php	#[ClassAttributes\ExampleAttribute]

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