Classes, traits, and interfaces - 9.5.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 1523

Name Deprecated Object type Namespace File name Summary Direct uses Use statements Strings
Comment class Drupal\comment\Plugin\migrate\source\d7 core/modules/comment/src/Plugin/migrate/source/d7/Comment.php Drupal 7 comment source from database.
Comment class Drupal\d6_comment_test\Plugin\migrate\source\d6 core/modules/comment/tests/modules/d6_comment_test/src/Plugin/migrate/source/d6/Comment.php Test source plugin for deprecation testing.
CommentAccessControlHandler class Drupal\comment core/modules/comment/src/CommentAccessControlHandler.php Defines the access control handler for the comment entity type.
CommentAccessTest class Drupal\Tests\comment\Functional core/modules/comment/tests/src/Functional/CommentAccessTest.php Tests comment administration and preview access.
CommentActionsTest class Drupal\Tests\comment\Kernel core/modules/comment/tests/src/Kernel/CommentActionsTest.php Tests actions provided by the Comment module.
CommentAdminOverview class Drupal\comment\Form core/modules/comment/src/Form/CommentAdminOverview.php Provides the comments overview administration form. 1
CommentAdminTest class Drupal\Tests\comment\Functional core/modules/comment/tests/src/Functional/CommentAdminTest.php Tests comment approval functionality.
CommentAdminTest class Drupal\Tests\comment\Functional\Views core/modules/comment/tests/src/Functional/Views/CommentAdminTest.php Tests comment approval functionality.
CommentAdminViewTest class Drupal\Tests\comment\Kernel\Views core/modules/comment/tests/src/Kernel/Views/CommentAdminViewTest.php Tests comment admin view filters.
CommentAnonymousTest class Drupal\Tests\comment\Functional core/modules/comment/tests/src/Functional/CommentAnonymousTest.php Tests anonymous commenting.
CommentApproveLinkTest class Drupal\Tests\comment\Functional\Views core/modules/comment/tests/src/Functional/Views/CommentApproveLinkTest.php Test the "approve_comment" views field for approving comments.
CommentAttributesTest class Drupal\Tests\rdf\Functional core/modules/rdf/tests/src/Functional/CommentAttributesTest.php Tests the RDFa markup of comments.
CommentBaseFieldTest class Drupal\Tests\comment\Kernel core/modules/comment/tests/src/Kernel/CommentBaseFieldTest.php Tests that comment as a base field.
CommentBlockTest class Drupal\Tests\comment\Functional core/modules/comment/tests/src/Functional/CommentBlockTest.php Tests comment block functionality.
CommentBookTest class Drupal\Tests\comment\Functional core/modules/comment/tests/src/Functional/CommentBookTest.php Tests visibility of comments on book pages.
CommentBreadcrumbBuilder class Drupal\comment core/modules/comment/src/CommentBreadcrumbBuilder.php Class to define the comment breadcrumb builder. 2
CommentBulkForm class Drupal\comment\Plugin\views\field core/modules/comment/src/Plugin/views/field/CommentBulkForm.php Defines a comment operations bulk form element. 1
CommentBulkFormTest class Drupal\Tests\comment\Unit\Plugin\views\field core/modules/comment/tests/src/Unit/Plugin/views/field/CommentBulkFormTest.php @coversDefaultClass \Drupal\comment\Plugin\views\field\CommentBulkForm @group comment
CommentBundlesTest class Drupal\Tests\comment\Kernel core/modules/comment/tests/src/Kernel/CommentBundlesTest.php Tests that comment bundles behave as expected.
CommentCacheTagsTest class Drupal\Tests\comment\Functional core/modules/comment/tests/src/Functional/CommentCacheTagsTest.php Tests the Comment entity's cache tags.
CommentController class Drupal\comment\Controller core/modules/comment/src/Controller/CommentController.php Controller for the comment entity.
CommentCSSTest class Drupal\Tests\comment\Functional core/modules/comment/tests/src/Functional/CommentCSSTest.php Tests CSS classes on comments.
CommentDefaultFormatter class Drupal\comment\Plugin\Field\FieldFormatter core/modules/comment/src/Plugin/Field/FieldFormatter/CommentDefaultFormatter.php Provides a default comment formatter.
CommentDefaultFormatterCacheTagsTest class Drupal\Tests\comment\Kernel core/modules/comment/tests/src/Kernel/CommentDefaultFormatterCacheTagsTest.php Tests comment cache tag bubbling up when using the Comment list formatter.
CommentDepthTest class Drupal\Tests\comment\Kernel\Views core/modules/comment/tests/src/Kernel/Views/CommentDepthTest.php Tests the depth of the comment field handler.
CommentDisplayConfigurableTest class Drupal\Tests\comment\Functional core/modules/comment/tests/src/Functional/CommentDisplayConfigurableTest.php Tests making comment base fields' displays configurable.
CommentedEntity class Drupal\comment\Plugin\views\field core/modules/comment/src/Plugin/views/field/CommentedEntity.php Views field display for commented entity.
CommentEditTest class Drupal\Tests\comment\Functional\Views core/modules/comment/tests/src/Functional/Views/CommentEditTest.php Tests comment edit functionality.
CommentEntityTest class Drupal\Tests\comment\Functional core/modules/comment/tests/src/Functional/CommentEntityTest.php Tests comments with other entities.
CommentEntityTranslation class Drupal\comment\Plugin\migrate\source\d7 core/modules/comment/src/Plugin/migrate/source/d7/CommentEntityTranslation.php Drupal 7 comment entity translation source plugin.
CommentEntityTranslationCheckRequirementsTest class Drupal\Tests\comment\Kernel\Migrate\d7 core/modules/comment/tests/src/Kernel/Migrate/d7/CommentEntityTranslationCheckRequirementsTest.php Tests check requirements for comment entity translation source plugin.
CommentEntityTranslationTest class Drupal\Tests\comment\Kernel\Plugin\migrate\source\d7 core/modules/comment/tests/src/Kernel/Plugin/migrate/source/d7/CommentEntityTranslationTest.php Tests D7 comment entity translation source plugin.
CommentFieldAccessTest class Drupal\Tests\comment\Kernel core/modules/comment/tests/src/Kernel/CommentFieldAccessTest.php Tests comment field level access.
CommentFieldFilterTest class Drupal\Tests\comment\Functional\Views core/modules/comment/tests/src/Functional/Views/CommentFieldFilterTest.php Tests comment field filters with translations.
CommentFieldItemList class Drupal\comment core/modules/comment/src/CommentFieldItemList.php Defines an item list class for comment fields.
CommentFieldNameTest class Drupal\Tests\comment\Kernel\Views core/modules/comment/tests/src/Kernel/Views/CommentFieldNameTest.php Tests the comment field name field.
CommentFieldsTest class Drupal\Tests\comment\Functional core/modules/comment/tests/src/Functional/CommentFieldsTest.php Tests fields on comments.
CommentForm class Drupal\comment core/modules/comment/src/CommentForm.php Base handler for comment forms.
CommentHalExportTest class Drupal\Tests\hal\Functional\comment\Views core/modules/hal/tests/src/Functional/comment/Views/CommentHalExportTest.php Tests a comment rest export view.
CommentHalJsonAnonTest class Drupal\Tests\hal\Functional\comment core/modules/hal/tests/src/Functional/comment/CommentHalJsonAnonTest.php @group hal @group legacy
CommentHalJsonBasicAuthTest class Drupal\Tests\hal\Functional\comment core/modules/hal/tests/src/Functional/comment/CommentHalJsonBasicAuthTest.php @group hal @group legacy
CommentHalJsonCookieTest class Drupal\Tests\hal\Functional\comment core/modules/hal/tests/src/Functional/comment/CommentHalJsonCookieTest.php @group hal @group legacy
CommentHalJsonTestBase abstract class Drupal\Tests\hal\Functional\comment core/modules/hal/tests/src/Functional/comment/CommentHalJsonTestBase.php 3
CommentHostnameTest class Drupal\Tests\comment\Kernel core/modules/comment/tests/src/Kernel/CommentHostnameTest.php Tests the hostname base field.
CommentIntegrationTest class Drupal\Tests\comment\Kernel core/modules/comment/tests/src/Kernel/CommentIntegrationTest.php Tests integration of comment with other components.
CommentInterface interface Drupal\comment core/modules/comment/src/CommentInterface.php Provides an interface defining a comment entity. 1 38
CommentInterfaceTest class Drupal\Tests\comment\Functional core/modules/comment/tests/src/Functional/CommentInterfaceTest.php Tests comment user interfaces.
CommentItem class Drupal\comment\Plugin\Field\FieldType core/modules/comment/src/Plugin/Field/FieldType/CommentItem.php Plugin implementation of the 'comment' field type.
CommentItemInterface interface Drupal\comment\Plugin\Field\FieldType core/modules/comment/src/Plugin/Field/FieldType/CommentItemInterface.php Interface definition for Comment items. 1 37
CommentItemTest class Drupal\Tests\comment\Kernel core/modules/comment/tests/src/Kernel/CommentItemTest.php Tests the new entity API for the comment field type.

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