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class Query in Multiversion 8.2

Same name and namespace in other branches
  1. 8 src/Entity/Query/Sql/Query.php \Drupal\multiversion\Entity\Query\Sql\Query

Hierarchy

Expanded class hierarchy of Query

File

src/Entity/Query/Sql/Query.php, line 12

Namespace

Drupal\multiversion\Entity\Query\Sql
View source 
class Query extends BaseQuery implements QueryInterface {
  use QueryTrait {
    prepare as traitPrepare;
  }

  /**
   * Stores the SQL expressions used to build the SQL query.
   *
   * The array is keyed by the expression alias and the values are the actual
   * expressions.
   *
   * @var array
   *   An array of expressions.
   */
  protected $sqlExpressions = [];

  /**
   * The entity type manager service.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $entityTypeManager;

  /**
   * @var \Drupal\multiversion\MultiversionManager
   */
  protected $multiversionManager;

  /**
   * @var \Drupal\workspaces\WorkspaceManagerInterface
   */
  private $workspaceManager;

  /**
   * {@inheritdoc}
   */
  public function __construct(EntityTypeInterface $entity_type, $conjunction, Connection $connection, array $namespaces, WorkspaceManagerInterface $workspace_manager) {
    parent::__construct($entity_type, $conjunction, $connection, $namespaces);
    $this->entityTypeManager = \Drupal::service('entity_type.manager');
    $this->multiversionManager = \Drupal::service('multiversion.manager');
    $this->workspaceManager = $workspace_manager;
  }

  /**
   * {@inheritdoc}
   */
  public function prepare() {
    $this
      ->traitPrepare();

    // If the prepare() method from the trait decided that we need to alter this
    // query, we need to re-define the the key fields for fetchAllKeyed() as SQL
    // expressions.
    if ($this->sqlQuery
      ->getMetaData('active_workspace_id')) {
      $id_field = $this->entityType
        ->getKey('id');
      $revision_field = $this->entityType
        ->getKey('revision');

      // Since the query is against the base table, we have to take into account
      // that the revision ID might come from the workspace_association
      // relationship, and, as a consequence, the revision ID field is no longer
      // a simple SQL field but an expression.
      $this->sqlFields = [];
      $this->sqlExpressions[$revision_field] = "COALESCE(workspace_association.target_entity_revision_id, base_table.{$revision_field})";
      $this->sqlExpressions[$id_field] = "base_table.{$id_field}";
    }
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  protected function finish() {
    foreach ($this->sqlExpressions as $alias => $expression) {
      $this->sqlQuery
        ->addExpression($expression, $alias);
    }
    return parent::finish();
  }

}

Members

Namesort descending Modifiers Type Description Overrides
Query::$connection protected property
Query::$entityTypeManager protected property The entity type manager service.
Query::$multiversionManager protected property
Query::$sqlExpressions protected property Stores the SQL expressions used to build the SQL query.
Query::$sqlFields protected property An array of fields keyed by the field alias.
Query::$sqlGroupBy protected property An array of strings added as to the group by, keyed by the string to avoid duplicates.
Query::$sqlQuery protected property The build sql select query.
Query::$tables protected property The Tables object for this query.
Query::$workspaceManager private property
Query::addSort protected function Adds the sort to the build query.
Query::compile protected function Compiles the conditions.
Query::execute public function Execute the query. Overrides QueryInterface::execute
Query::finish protected function Finish the query by adding fields, GROUP BY and range. Overrides Query::finish
Query::getSqlField protected function Constructs a select expression for a given field and language.
Query::getTables public function Gets the Tables object for this query.
Query::isSimpleQuery protected function Determines whether the query requires GROUP BY and ORDER BY MIN/MAX.
Query::prepare public function Prepares the basic query with proper metadata/tags and base fields. Overrides Query::prepare
Query::result protected function Executes the query and returns the result. 1
Query::__clone public function Implements the magic __clone method. Overrides QueryBase::__clone
Query::__construct public function Constructs a query object. Overrides Query::__construct
Query::__toString public function Implements the magic __toString method.
QueryBase::$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
QueryTrait::$isDeleted protected property
QueryTrait::$workspaceId protected property
QueryTrait::getWorkspaceId protected function Helper method to get the workspace ID to query.
QueryTrait::isDeleted public function
QueryTrait::isNotDeleted public function
QueryTrait::prepare public function Aliased as: traitPrepare
QueryTrait::useWorkspace public function