public PhpStreamWrapperInterface::stream_seek($offset, $whence = SEEK_SET) Seeks to specific location in a stream. This method is called in response to fseek(). The read/write position of the stream should be updated according to the offset and whence. Parameters int $offset: The byte offset to seek to. int $whence: Possible values: SEEK_SET: Set position equal to offset bytes. SEEK_CUR: Set position to current location plus offset. SEEK_END: Set position to end-of-file plus offset. Defau

public FormStateDecoratorBase::isExecuted() Determines if the form was submitted and has been processed and executed. Return value bool TRUE if the form was submitted and has been processed and executed. Overrides FormStateInterface::isExecuted File core/lib/Drupal/Core/Form/FormStateDecoratorBase.php, line 98 Class FormStateDecoratorBase Decorates another form state. Namespace Drupal\Core\Form Code public function isExecuted() { return $this->decoratedFormState->isExecuted();

public UserInterface::block() Blocks the user. Return value \Drupal\user\UserInterface The called user entity. File core/modules/user/src/UserInterface.php, line 152 Class UserInterface Provides an interface defining a user entity. Namespace Drupal\user Code public function block();

The database lock object. Type: \Drupal\Core\Lock\LockBackendInterface File core/modules/config/src/Form/ConfigSingleImportForm.php, line 71 Class ConfigSingleImportForm Provides a form for importing a single configuration file. Namespace Drupal\config\Form Code protected $lock;

Exception thrown if an insert query doesn't specify insert or default fields. Hierarchy class \Drupal\Core\Database\Query\NoFieldsException extends \InvalidArgumentException implements DatabaseException File core/lib/Drupal/Core/Database/Query/NoFieldsException.php, line 10 Namespace Drupal\Core\Database\Query Members

public UuidInterface::generate() Generates a Universally Unique IDentifier (UUID). Return value A 16 byte integer represented as a hex string formatted with 4 hyphens. File core/lib/Drupal/Component/Uuid/UuidInterface.php, line 16 Class UuidInterface Interface for generating UUIDs. Namespace Drupal\Component\Uuid Code public function generate();

The current route match. Type: \Drupal\Core\Routing\RouteMatchInterface File core/modules/image/src/PageCache/DenyPrivateImageStyleDownload.php, line 23 Class DenyPrivateImageStyleDownload Cache policy for image preview page. Namespace Drupal\image\PageCache Code protected $routeMatch;

language_entity_field_access($operation, FieldDefinitionInterface $field_definition, AccountInterface $account, FieldItemListInterface $items = NULL) Implements hook_entity_field_access() File core/modules/language/language.module, line 431 Add language handling functionality to Drupal. Code function language_entity_field_access($operation, FieldDefinitionInterface $field_definition, AccountInterface $account, FieldItemListInterface $items = NULL) { // Only allow edit access on a langcode f

The flood control mechanism. Type: \Drupal\Core\Flood\FloodInterface File core/modules/contact/src/MessageForm.php, line 30 Class MessageForm Form controller for contact message forms. Namespace Drupal\contact Code protected $flood;

public FieldStorageDefinitionInterface::getUniqueStorageIdentifier() Returns a unique identifier for the field. Return value string File core/lib/Drupal/Core/Field/FieldStorageDefinitionInterface.php, line 334 Class FieldStorageDefinitionInterface Defines an interface for entity field storage definitions. Namespace Drupal\Core\Field Code public function getUniqueStorageIdentifier();