Question

我在存储库中有这段代码：

 public function getNotAssignedBy($speciality, $diploma)
{
    $qb = $this->createQueryBuilder('j')
        ->select('DISTINCT(j.id) id', 'j.firstName', 'j.lastName', 'j.dateBirth', 'j.sex')
        ->leftJoin('j.qualifications', 'q')
    ;


    if ($speciality) {
        $qb->andWhere('q.speciality = :speciality_id')->setParameter('speciality_id', $speciality);
    }
    if ($diploma) {
        $qb->andWhere('q.diploma = :diploma_id')->setParameter('diploma_id', $diploma);
    }

    $result = $qb->getQuery()->getResult();

    return $result;
}

如何才能获得另一个实体中不存在id的行？

任何帮助。感谢

Answer 1

你可以用这样的东西来实现它：

echo "<form action='file-here/process.php' method='post' enctype='multipart/form-data' target='upload_target' id='form-reset'>";
    echo "<iframe id='upload_target' name='upload_target' ></iframe>";
    echo "<select name='id' id='form-option' class='test-only'>";
    echo '<option selected="selected">' .'Choose a User'. '</option>';

    foreach ($registeredUsers as $key => $value) {
      $registered = JFactory::getUser($value);
      echo '<option value="'.$registered->id.'">'.$registered->name.'</option>';

    }
    echo "</select>";
    echo "<input name='uploadedfile' type='file' id='custom-file-input' class='test-only' /><br/>";
    echo '<input type="submit" name="submit" value="Upload" id="custom-submit-input"  >';
    echo "</form>";

希望这个帮助

Answer 2

由于我无法评论，所以我将发布 greg0ire 解决方案的固定版本

$sub = $this->_em->createQueryBuilder();// _em stands for entity manager here. While $qb may use repositories createQueryBuilder() which requires alias 
$sub->select("t");
$sub->from("AnotherEntity","t");
$sub->andWhere('t.user = j.id');

// Your query builder:
$qb->andWhere($qb->expr()->not($qb->expr()->exists($sub->getDQL())));

学说不存在子查询

2 个答案: