/**
* Constructor
*
* @param Librarian $librarian The librarian interface responsible for the query
* @param DBAL\Connection $db A Doctrine Connection
* @param int $limit The maximum number of results to return
* @param array $orderBy An assoc. array of indexName => direction
* @param array $indexes An assoc. array of indexName => Index
*/
public function __construct(LibrarianInterface $librarian, DBAL\Connection $db, $limit, array $orderBy, array $indexes)
{
$this->librarian = $librarian;
$this->indexes = $indexes;
$this->db = $db;
$this->limit = $limit;
$this->queryBuilder = $this->db->createQueryBuilder();
$this->queryBuilder->setMaxResults($limit);
foreach ($this->indexes as $index) {
$index->setQuery($this);
$index->setQueryBuilder($this->queryBuilder);
}
// TODO: make this explicitly defined?
$this->mainIndex = current($this->indexes);
foreach (array_slice($this->indexes, 1) as $name => $index) {
$this->queryBuilder->leftJoin($this->mainIndex->getName(), $index->getTableName(), $index->getName($quote = true), $this->mainIndex->getName() . '.id = ' . $this->db->quoteIdentifier($name) . '.id');
}
$this->queryBuilder->select('distinct ' . $this->mainIndex->getName() . '.id')->from($this->mainIndex->getTableName(), $this->mainIndex->getName($quote = true));
foreach ($orderBy as $name => $direction) {
$this->indexes[$name]->orderBy($direction);
}
}
public static function getSubscribedEvents()
{
return array_merge(parent::getSubscribedEvents(), [Events::PUT_EVENT => ['onPut', 100]]);
}
public static function getSubscribedEvents()
{
return array_merge(parent::getSubscribedEvents(), [Events::GET_EVENT => ['hydrateProperty', -100], Events::PUT_EVENT => ['dehydratePropertyAndUpdateIndex', 100]]);
}