public QueryConditionTrait::exists(SelectInterface $select) Sets a condition that the specified subquery returns values. Parameters \Drupal\Core\Database\Query\SelectInterface $select: The subquery that must contain results. Return value \Drupal\Core\Database\Query\ConditionInterface The called object. Overrides ConditionInterface::exists File core/lib/Drupal/Core/Database/Query/QueryConditionTrait.php, line 50 Class QueryConditionTrait Provides an implementation of ConditionInterface.

Install, update, and uninstall functions for the Forum module. File core/modules/forum/forum.install Functions Name Description forum_install Implements hook_install(). forum_schema Implements hook_schema(). forum_uninstall Implements hook_uninstall().

public ConditionFundamentals::__construct($conjunction, QueryInterface $query, $namespaces = []) Constructs a Condition object. Parameters string $conjunction: The operator to use to combine conditions: 'AND' or 'OR'. QueryInterface $query: The entity query this condition belongs to. array $namespaces: List of potential namespaces of the classes belonging to this condition. File core/lib/Drupal/Core/Entity/Query/ConditionFundamentals.php, line 51 Class ConditionFundamentals Common code fo

drupal_requirements_url($severity) Returns a URL for proceeding to the next page after a requirements problem. This function can be called by low-level scripts (such as install.php and update.php) and returns a URL that can be used to attempt to proceed to the next step of the script. Parameters $severity: The severity of the requirements problem, as returned by drupal_requirements_severity(). Return value A URL for attempting to proceed to the next step of the script. The URL is not sanitize

The comment storage. Type: \Drupal\comment\CommentStorageInterface File core/modules/comment/src/Form/CommentAdminOverview.php, line 32 Class CommentAdminOverview Provides the comments overview administration form. Namespace Drupal\comment\Form Code protected $commentStorage;

The config factory to get the installed themes. Type: \Drupal\Core\Config\ConfigFactoryInterface File core/lib/Drupal/Core/Extension/ThemeHandler.php, line 40 Class ThemeHandler Default theme handler using the config system to store installation statuses. Namespace Drupal\Core\Extension Code protected $configFactory;

protected DefaultExceptionSubscriber::getFormat(Request $request) Gets the error-relevant format from the request. Parameters \Symfony\Component\HttpFoundation\Request $request: The request object. Return value string The format as which to treat the exception. File core/lib/Drupal/Core/EventSubscriber/DefaultExceptionSubscriber.php, line 212 Class DefaultExceptionSubscriber Last-chance handler for exceptions. Namespace Drupal\Core\EventSubscriber Code protected function getFormat(Re

Defines the interface for compound request policies. Hierarchy interface \Drupal\Core\PageCache\RequestPolicyInterfaceinterface \Drupal\Core\PageCache\ChainRequestPolicyInterface File core/lib/Drupal/Core/PageCache/ChainRequestPolicyInterface.php, line 8 Namespace Drupal\Core\PageCache Members Name Modifiers Type Description ChainRequestPolicyInterface::addPolicy public function Add a policy to the list of policy rules. RequestPolicyInterface::ALLOW constant All

protected DefaultExceptionHtmlSubscriber::getHandledFormats() Specifies the request formats this subscriber will respond to. Return value array An indexed array of the format machine names that this subscriber will attempt to process, such as "html" or "json". Returning an empty array will apply to all formats. Overrides HttpExceptionSubscriberBase::getHandledFormats See also \Symfony\Component\HttpFoundation\Request File core/lib/Drupal/Core/EventSubscriber/DefaultExceptionHtmlSubscriber.php

public CommentBreadcrumbBuilder::build(RouteMatchInterface $route_match) Builds the breadcrumb. Parameters \Drupal\Core\Routing\RouteMatchInterface $route_match: The current route match. Return value \Drupal\Core\Breadcrumb\Breadcrumb A breadcrumb. Overrides BreadcrumbBuilderInterface::build File core/modules/comment/src/CommentBreadcrumbBuilder.php, line 45 Class CommentBreadcrumbBuilder Class to define the comment breadcrumb builder. Namespace Drupal\comment Code public function bu