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
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core/
core.api.php, line 1529
| Name | Deprecated | Object type | Namespace | File name | Summary | Direct uses | Use statements | Strings |
|---|---|---|---|---|---|---|---|---|
| FormGroupingElementsTest | class | Drupal\FunctionalJavascriptTests\Core\Form | core/ |
Tests for form grouping elements. | ||||
| FormHelper | class | Drupal\Core\Form | core/ |
Provides helpers to operate on forms. | 6 | |||
| FormHelperTest | class | Drupal\Tests\Core\Form | core/ |
Tests Drupal\Core\Form\FormHelper. | ||||
| FormHooks | class | Drupal\admin\Hook | core/ |
Provides form related hook implementations. | ||||
| FormHooks | class | Drupal\default_admin\Hook | core/ |
Provides form related hook implementations. | ||||
| FormInterface | interface | Drupal\Core\Form | core/ |
Provides an interface for a Form. | 41 | 43 | ||
| FormModeAccessCheck | class | Drupal\field_ui\Access | core/ |
Defines an access check for entity form mode routes. | 2 | |||
| FormObjectTest | class | Drupal\Tests\system\Kernel\Form | core/ |
Tests building a form from an object. | ||||
| FormObjectTest | class | Drupal\Tests\system\Functional\Form | core/ |
Tests building a form from an object. | ||||
| FormOperations | class | Drupal\workspaces\Hook | core/ |
Defines a class for reacting to form operations. | ||||
| FormPreprocess | class | Drupal\Core\Form | core/ |
Initial preprocess callbacks for the form system. | 1 | 2 | ||
| FormRouteEnhancer | class | Drupal\Core\Routing\Enhancer | core/ |
Enhancer to add a wrapping controller for _form routes. | 2 | |||
| FormState | class | Drupal\Core\Form | core/ |
Stores information about the state of a form. | 86 | |||
| FormStateDecoratorBase | abstract class | Drupal\Core\Form | core/ |
Decorates another form state. | 2 | 1 | ||
| FormStateDecoratorBaseTest | class | Drupal\Tests\Core\Form | core/ |
Tests Drupal\Core\Form\FormStateDecoratorBase. | ||||
| FormStateInterface | interface | Drupal\Core\Form | core/ |
Provides an interface for an object containing the current state of a form. | 3 | 915 | ||
| FormStatePersistTest | class | Drupal\Tests\system\Kernel\Form | core/ |
Tests that the form state persists across multiple requests. | ||||
| FormStateTest | class | Drupal\Tests\Core\Form | core/ |
Tests Drupal\Core\Form\FormState. | ||||
| FormStateValuesTrait | trait | Drupal\Core\Form | core/ |
Provides methods to manage form state values. | 1 | |||
| FormStateValuesTraitStub | class | Drupal\Tests\Core\Form | core/ |
Stub class with trait for testing. | ||||
| FormStateValuesTraitTest | class | Drupal\Tests\Core\Form | core/ |
Tests Drupal\Core\Form\FormStateValuesTrait. | ||||
| FormStoragePageCacheTest | class | Drupal\Tests\system\Functional\Form | core/ |
Tests form storage from cached pages. | ||||
| FormSubmitter | class | Drupal\Core\Form | core/ |
Provides submission processing for forms. | 1 | 2 | 2 | |
| FormSubmitterInterface | interface | Drupal\Core\Form | core/ |
Provides an interface for processing form submissions. | 2 | 1 | ||
| FormSubmitterTest | class | Drupal\Tests\Core\Form | core/ |
Tests Drupal\Core\Form\FormSubmitter. | ||||
| FormTest | class | Drupal\Tests\field\Functional | core/ |
Tests field form handling. | ||||
| FormTest | class | Drupal\Tests\system\Functional\Form | core/ |
Tests various form element validation mechanisms. | ||||
| FormTestAlterForm | class | Drupal\form_test\Form | core/ |
Form builder for testing hook_form_alter() and hook_form_FORM_ID_alter(). | 1 | 1 | ||
| FormTestArgumentsObject | class | Drupal\form_test | core/ |
Provides a test form object that needs arguments. | 1 | |||
| FormTestAutocompleteForm | class | Drupal\form_test | core/ |
Defines a test form using autocomplete textfields. | 1 | |||
| FormTestBase | abstract class | Drupal\Tests\Core\Form | core/ |
Provides a base class for testing form functionality. | 1 | |||
| FormTestButtonClassForm | class | Drupal\form_test\Form | core/ |
Builds a simple form to test form button classes. | 1 | |||
| FormTestCheckboxesRadiosForm | class | Drupal\form_test\Form | core/ |
Form constructor to test expansion of #type checkboxes and radios. | 1 | |||
| FormTestCheckboxesZeroForm | class | Drupal\form_test\Form | core/ |
Tests checkboxes zero. | 1 | |||
| FormTestCheckboxForm | class | Drupal\form_test\Form | core/ |
Form for testing checkbox. | 1 | |||
| FormTestCheckboxTypeJugglingForm | class | Drupal\form_test\Form | core/ |
Builds a form to test return values for checkboxes. | ||||
| FormTestClickedButtonForm | class | Drupal\form_test\Form | core/ |
Form builder to test button click detection. | 1 | |||
| FormTestColorForm | class | Drupal\form_test\Form | core/ |
Form constructor for testing #type 'color' elements. | 1 | |||
| FormTestController | class | Drupal\form_test\Controller | core/ |
Controller routines for form_test routes. | ||||
| FormTestControllerObject | class | Drupal\form_test | core/ |
Provides a test form object. | 1 | |||
| FormTestDescriptionForm | class | Drupal\form_test\Form | core/ |
Defines a form for testing form element description display options. | 1 | |||
| FormTestDetailsContainsRequiredTextfieldForm | class | Drupal\form_test\Form | core/ |
Builds a form to test a required textfield within a details element. | 1 | |||
| FormTestDetailsForm | class | Drupal\form_test\Form | core/ |
Builds a simple form to test the #group property on #type 'container'. | 1 | |||
| FormTestDisabledElementsForm | class | Drupal\form_test\Form | core/ |
Builds a form to test disabled elements. | 1 | 1 | ||
| FormTestEmailForm | class | Drupal\form_test\Form | core/ |
Form constructor for testing #type 'email' elements. | 1 | |||
| FormTestEmptySelectForm | class | Drupal\form_test\Form | core/ |
Builds a form to test select elements when #options is not an array. | 1 | |||
| FormTestEventSubscriber | class | Drupal\form_test\EventSubscriber | core/ |
Test event subscriber to add new attributes to the request. | 2 | |||
| FormTestFileForm | class | Drupal\form_test\Form | core/ |
Form constructor for testing #type 'file' elements. | 1 | |||
| FormTestFormStateValuesCleanAdvancedForm | class | Drupal\form_test\Form | core/ |
Form builder for \Drupal\Core\Form\FormState::cleanValues() test. | 1 | |||
| FormTestFormStateValuesCleanForm | class | Drupal\form_test\Form | core/ |
Form builder for \Drupal\Core\Form\FormState::cleanValues() test. | 1 |
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