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13 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
15 * This software consists of voluntary contributions made by many individuals
16 * and is licensed under the MIT license. For more information, see
17 * <http://www.doctrine-project.org>.
20 namespace Doctrine\ORM\Internal\Hydration;
22 use Doctrine\DBAL\Connection,
23 Doctrine\ORM\NoResultException,
24 Doctrine\ORM\NonUniqueResultException;
27 * Hydrator that hydrates a single scalar value from the result set.
30 * @author Roman Borschel <roman@code-factory.org>
31 * @author Guilherme Blanco <guilhermeblanco@hotmail.com>
33 class SingleScalarHydrator extends AbstractHydrator
38 protected function hydrateAllData()
40 $data = $this->_stmt->fetchAll(\PDO::FETCH_ASSOC);
41 $numRows = count($data);
44 throw new NoResultException();
47 if ($numRows > 1 || count($data[key($data)]) > 1) {
48 throw new NonUniqueResultException();
52 $result = $this->gatherScalarRowData($data[key($data)], $cache);
54 return array_shift($result);