class Query in Drupal 8

Defines the entity query for configuration entities.

Hierarchy

• class \Drupal\Core\Entity\Query\QueryBase implements QueryInterface
  • class \Drupal\Core\Entity\Query\Null\Query implements QueryAggregateInterface, QueryInterface

6 string references to 'Query'

Error::decodeException in core/lib/Drupal/Core/Utility/Error.php

Decodes an exception and retrieves the correct caller.

PgsqlQueryFactory::get in core/modules/workspaces/src/EntityQuery/PgsqlQueryFactory.php

Instantiates an entity query for a given entity type.

QueryFactory::get in core/modules/workspaces/src/EntityQuery/QueryFactory.php

Instantiates an entity query for a given entity type.

QueryFactory::get in core/lib/Drupal/Core/Entity/Query/Sql/QueryFactory.php

Instantiates an entity query for a given entity type.

views.data_types.schema.yml in core/modules/views/config/schema/views.data_types.schema.yml

core/modules/views/config/schema/views.data_types.schema.yml

... See full list

File

core/lib/Drupal/Core/Entity/Query/Null/Query.php, line 13

Namespace

Drupal\Core\Entity\Query\Null

class Query extends QueryBase implements QueryInterface, QueryAggregateInterface {

  /**
   * {@inheritdoc}
   */
  public function execute() {
    if ($this->count) {
      return 0;
    }
    return [];
  }

  /**
   * {@inheritdoc}
   */
  public function existsAggregate($field, $function, $langcode = NULL) {
    return $this->conditionAggregate
      ->exists($field, $function, $langcode);
  }

  /**
   * {@inheritdoc}
   */
  public function notExistsAggregate($field, $function, $langcode = NULL) {
    return $this->conditionAggregate
      ->notExists($field, $function, $langcode);
  }

  /**
   * {@inheritdoc}
   */
  public function conditionAggregateGroupFactory($conjunction = 'AND') {
    return new ConditionAggregate($conjunction, $this);
  }

}

Members

Name	Modifiers	Type	Description	Overrides
Query::conditionAggregateGroupFactory	public	function	Creates an object holding a group of conditions. Overrides QueryAggregateInterface::conditionAggregateGroupFactory
Query::execute	public	function	Execute the query. Overrides QueryInterface::execute
Query::existsAggregate	public	function	Queries for the existence of a field. Overrides QueryAggregateInterface::existsAggregate
Query::notExistsAggregate	public	function	Queries for the nonexistence of a field. Overrides QueryAggregateInterface::notExistsAggregate
QueryBase::$accessCheck	protected	property	Whether access check is requested or not. Defaults to TRUE.
QueryBase::$aggregate	protected	property	The list of aggregate expressions.
QueryBase::$allRevisions	protected	property	Flag indicating whether to query the current revision or all revisions.
QueryBase::$alterMetaData	protected	property	The query metadata for alter purposes.
QueryBase::$alterTags	protected	property	The query tags.
QueryBase::$condition	protected	property	Conditions.	1
QueryBase::$conditionAggregate	protected	property	Aggregate Conditions
QueryBase::$count	protected	property	TRUE if this is a count query, FALSE if it isn't.
QueryBase::$entityType	protected	property	Information about the entity type.	1
QueryBase::$entityTypeId	protected	property	The entity type this query runs against.
QueryBase::$groupBy	protected	property	The list of columns to group on.
QueryBase::$latestRevision	protected	property	Flag indicating whether to query the latest revision.
QueryBase::$namespaces	protected	property	List of potential namespaces of the classes belonging to this query.
QueryBase::$pager	protected	property	The query pager data.
QueryBase::$range	protected	property	The query range.
QueryBase::$sort	protected	property	The list of sorts.
QueryBase::$sortAggregate	protected	property	The list of sorts over the aggregate results.
QueryBase::accessCheck	public	function	Overrides QueryInterface::accessCheck
QueryBase::addMetaData	public	function	Adds additional metadata to the query. Overrides AlterableInterface::addMetaData
QueryBase::addTag	public	function	Adds a tag to a query. Overrides AlterableInterface::addTag
QueryBase::aggregate	public	function
QueryBase::allRevisions	public	function	Queries all the revisions. Overrides QueryInterface::allRevisions
QueryBase::andConditionGroup	public	function	Creates a new group of conditions ANDed together. Overrides QueryInterface::andConditionGroup
QueryBase::condition	public	function	Add a condition to the query or a condition group. Overrides QueryInterface::condition	1
QueryBase::conditionAggregate	public	function
QueryBase::conditionGroupFactory	protected	function	Creates an object holding a group of conditions.
QueryBase::count	public	function	Makes this a count query. Overrides QueryInterface::count
QueryBase::currentRevision	public	function	Queries the current revision. Overrides QueryInterface::currentRevision
QueryBase::exists	public	function	Queries for a non-empty value on a field. Overrides QueryInterface::exists
QueryBase::getAggregationAlias	protected	function	Generates an alias for a field and its aggregated function.
QueryBase::getClass	public static	function	Finds a class in a list of namespaces.
QueryBase::getEntityTypeId	public	function	Gets the ID of the entity type for this query. Overrides QueryInterface::getEntityTypeId
QueryBase::getMetaData	public	function	Retrieves a given piece of metadata. Overrides AlterableInterface::getMetaData
QueryBase::getNamespaces	public static	function	Gets a list of namespaces of the ancestors of a class.
QueryBase::groupBy	public	function
QueryBase::hasAllTags	public	function	Determines if a given query has all specified tags. Overrides AlterableInterface::hasAllTags
QueryBase::hasAnyTag	public	function	Determines if a given query has any specified tag. Overrides AlterableInterface::hasAnyTag
QueryBase::hasTag	public	function	Determines if a given query has a given tag. Overrides AlterableInterface::hasTag
QueryBase::initializePager	protected	function	Gets the total number of results and initialize a pager for the query.
QueryBase::latestRevision	public	function	Queries the latest revision. Overrides QueryInterface::latestRevision
QueryBase::notExists	public	function	Queries for an empty field. Overrides QueryInterface::notExists
QueryBase::orConditionGroup	public	function	Creates a new group of conditions ORed together. Overrides QueryInterface::orConditionGroup
QueryBase::pager	public	function	Enables a pager for the query. Overrides QueryInterface::pager
QueryBase::range	public	function	Overrides QueryInterface::range
QueryBase::sort	public	function	Overrides QueryInterface::sort
QueryBase::sortAggregate	public	function
QueryBase::tableSort	public	function	Enables sortable tables for this query. Overrides QueryInterface::tableSort
QueryBase::__clone	public	function	Makes sure that the Condition object is cloned as well.	1
QueryBase::__construct	public	function	Constructs this object.	3