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
BookContentModerationTest class Drupal\Tests\book\Functional core/modules/book/tests/src/Functional/BookContentModerationTest.php Tests Book and Content Moderation integration.
BookController class Drupal\book\Controller core/modules/book/src/Controller/BookController.php Controller routines for book routes.
BookExport class Drupal\book core/modules/book/src/BookExport.php Provides methods for exporting book to different formats. 1 2
BookExport class Drupal\book core/modules/book/src/BookExport.php Provides methods for exporting book to different formats. 1 2
BookExport class Drupal\book core/modules/book/src/BookExport.php Provides methods for exporting book to different formats. 1 2
BookExport class Drupal\book core/modules/book/src/BookExport.php Provides methods for exporting book to different formats. 1 2
BookExport class Drupal\book core/modules/book/src/BookExport.php Provides methods for exporting book to different formats. 1 2
BookExport class Drupal\book core/modules/book/src/BookExport.php Provides methods for exporting book to different formats. 1 2
BookInstallTest class Drupal\Tests\book\Kernel core/modules/book/tests/src/Kernel/BookInstallTest.php Test installation of Book module.
BookJavascriptTest class Drupal\Tests\book\FunctionalJavascript core/modules/book/tests/src/FunctionalJavascript/BookJavascriptTest.php Tests Book javascript functionality.
BookLocalTasksTest class Drupal\Tests\book\Unit\Menu core/modules/book/tests/src/Unit/Menu/BookLocalTasksTest.php Tests existence of book local tasks.
BookManager class Drupal\book core/modules/book/src/BookManager.php Defines a book manager. 4 2
BookManager class Drupal\book core/modules/book/src/BookManager.php Defines a book manager. 4 2
BookManager class Drupal\book core/modules/book/src/BookManager.php Defines a book manager. 4 2
BookManager class Drupal\book core/modules/book/src/BookManager.php Defines a book manager. 4 2
BookManager class Drupal\book core/modules/book/src/BookManager.php Defines a book manager. 4 2
BookManager class Drupal\book core/modules/book/src/BookManager.php Defines a book manager. 4 2
BookManagerDeprecationTest class Drupal\Tests\book\Kernel core/modules/book/tests/src/Kernel/BookManagerDeprecationTest.php @coversDefaultClass \Drupal\book\BookManager[[api-linebreak]] @group legacy
BookManagerInterface interface Drupal\book core/modules/book/src/BookManagerInterface.php Provides an interface defining a book manager. 1 7
BookManagerInterface interface Drupal\book core/modules/book/src/BookManagerInterface.php Provides an interface defining a book manager. 1 7
BookManagerInterface interface Drupal\book core/modules/book/src/BookManagerInterface.php Provides an interface defining a book manager. 1 7
BookManagerInterface interface Drupal\book core/modules/book/src/BookManagerInterface.php Provides an interface defining a book manager. 1 7
BookManagerInterface interface Drupal\book core/modules/book/src/BookManagerInterface.php Provides an interface defining a book manager. 1 7
BookManagerInterface interface Drupal\book core/modules/book/src/BookManagerInterface.php Provides an interface defining a book manager. 1 7
BookManagerTest class Drupal\Tests\book\Unit core/modules/book/tests/src/Unit/BookManagerTest.php @coversDefaultClass \Drupal\book\BookManager[[api-linebreak]] @group book
BookMultilingualTest class Drupal\Tests\book\Kernel core/modules/book/tests/src/Kernel/BookMultilingualTest.php Tests multilingual books.
BookNavigationBlock class Drupal\book\Plugin\Block core/modules/book/src/Plugin/Block/BookNavigationBlock.php Provides a 'Book navigation' block.
BookNavigationCacheContext class Drupal\book\Cache core/modules/book/src/Cache/BookNavigationCacheContext.php Defines the book navigation cache context service. 1 2
BookNavigationCacheContext class Drupal\book\Cache core/modules/book/src/Cache/BookNavigationCacheContext.php Defines the book navigation cache context service. 1 2
BookNavigationCacheContext class Drupal\book\Cache core/modules/book/src/Cache/BookNavigationCacheContext.php Defines the book navigation cache context service. 1 2
BookNavigationCacheContext class Drupal\book\Cache core/modules/book/src/Cache/BookNavigationCacheContext.php Defines the book navigation cache context service. 1 2
BookNavigationCacheContext class Drupal\book\Cache core/modules/book/src/Cache/BookNavigationCacheContext.php Defines the book navigation cache context service. 1 2
BookNavigationCacheContext class Drupal\book\Cache core/modules/book/src/Cache/BookNavigationCacheContext.php Defines the book navigation cache context service. 1 2
BookNodeIsRemovableAccessCheck class Drupal\book\Access core/modules/book/src/Access/BookNodeIsRemovableAccessCheck.php Determines whether the requested node can be removed from its book. 2
BookNodeIsRemovableAccessCheck class Drupal\book\Access core/modules/book/src/Access/BookNodeIsRemovableAccessCheck.php Determines whether the requested node can be removed from its book. 2
BookNodeIsRemovableAccessCheck class Drupal\book\Access core/modules/book/src/Access/BookNodeIsRemovableAccessCheck.php Determines whether the requested node can be removed from its book. 2
BookOutline class Drupal\book core/modules/book/src/BookOutline.php Provides handling to render the book outline. 2
BookOutline class Drupal\book core/modules/book/src/BookOutline.php Provides handling to render the book outline. 2
BookOutline class Drupal\book core/modules/book/src/BookOutline.php Provides handling to render the book outline. 2
BookOutlineConstraint class Drupal\book\Plugin\Validation\Constraint core/modules/book/src/Plugin/Validation/Constraint/BookOutlineConstraint.php Validation constraint for changing the book outline in pending revisions.
BookOutlineConstraintValidator class Drupal\book\Plugin\Validation\Constraint core/modules/book/src/Plugin/Validation/Constraint/BookOutlineConstraintValidator.php Constraint validator for changing the book outline in pending revisions.
BookOutlineForm class Drupal\book\Form core/modules/book/src/Form/BookOutlineForm.php Displays the book outline form.
BookOutlineStorage class Drupal\book core/modules/book/src/BookOutlineStorage.php Defines a storage class for books outline. 2
BookOutlineStorage class Drupal\book core/modules/book/src/BookOutlineStorage.php Defines a storage class for books outline. 2
BookOutlineStorage class Drupal\book core/modules/book/src/BookOutlineStorage.php Defines a storage class for books outline. 2
BookOutlineStorageInterface interface Drupal\book core/modules/book/src/BookOutlineStorageInterface.php Defines a common interface for book outline storage classes. 1
BookOutlineStorageInterface interface Drupal\book core/modules/book/src/BookOutlineStorageInterface.php Defines a common interface for book outline storage classes. 1
BookOutlineStorageInterface interface Drupal\book core/modules/book/src/BookOutlineStorageInterface.php Defines a common interface for book outline storage classes. 1
BookPendingRevisionTest class Drupal\Tests\book\Kernel core/modules/book/tests/src/Kernel/BookPendingRevisionTest.php Tests that the Book module handles pending revisions correctly.
BookRelationshipTest class Drupal\Tests\book\Functional\Views core/modules/book/tests/src/Functional/Views/BookRelationshipTest.php Tests entity reference relationship data.

Other projects

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.