<?php namespace Doctrine\ORM\Internal\Hydration; class HydrationException extends \Doctrine\ORM\ORMException { public static function nonUniqueResult() { return new self("The result returned by the query was not unique."); } public static function parentObjectOfRelationNotFound($alias, $parentAlias) { return new self("The parent object of entity result with alias '$alias' was not found." . " The parent alias is '$parentAlias'."); } }