Question

我正在尝试为我的数据库构建过滤器。基于几个表单输入的值，我需要构造适当的查询。这是代码：

    $qb = $em->createQueryBuilder();
            $qb->select('c.title')
            ->from('Baza\BlogBundle\Entity\Conferences', 'c');         
    $conditions=array(
        $qb->expr()->gt('c.title',$enquiry->getNaziv()) );//First condition 

    if ($enquiry->getKontakt()!=null) {
         $conditions[] = $qb->expr()->lt('c.contactemail',$enquiry->getKontakt())}//Adding second, optional condition

    $conditions = call_user_func_array(array($qb, 'andX'), $conditions);
    $qb->where($conditions);
    $query = $qb->getQuery();

当我运行这个时，我得到了以下例外：

警告：call_user_func_array（）期望参数1是有效的回调，类'Doctrine \ ORM \ QueryBuilder'没有方法'andX'

*编辑在call_user_func_array（）修改后，我收到以下错误：

QueryException：SELECT c.title FROM Baza \ BlogBundle \ Entity \ Conferences c WHERE c.title＆gt; ITRO和c.contactemail＆lt; somemail@yahoo.com

显然，查询格式不正确。我关注此帖：Doctrine DQL conditional query

有什么想法吗？

Answer 1

我使用以下代码构建了动态查询：

$em = $this->getDoctrine()->getEntityManager();

            $naziv = $enquiry->getNaziv();
            $drzava=$enquiry->getDrzava();
            $oblast=$enquiry->getOblast();
            $grad=$enquiry->getGrad();
            $provincija=$enquiry->getProvincija();
            $kontakt=$enquiry->getKontakt();
            $sajt=$enquiry->getSajt();

            $testquery = "SELECT c.title FROM Baza\BlogBundle\Entity\Conferences c JOIN c.topicid t JOIN c.locationid l JOIN l.stateid s WHERE c.lh = :lh";
            $testparam ['lh'] = $lh;

            if ($kontakt != '') {
                    $testquery .= " and c.contactemail = :kontakt";
                    $testparam['kontakt'] = $kontakt;
            }
            if ($drzava != '') {
                    $testquery .= " and s.name = :drzava";
                    $testparam['drzava'] = $drzava;
            }

            if ($provincija != '') {
                    $testquery .= " and l.province = :provincija";
                    $testparam['provincija'] = $provincija;
            }

             if ($grad != '') {
                    $testquery .= " and l.city = :grad";
                    $testparam['grad'] = $grad;
            }

             if ($sajt != '') {
                    $testquery .= " and c.siteurl = :sajt";
                    $testparam['sajt'] = $sajt;
            }

             if ($oblast != '') {
                    $testquery .= " and t.name = :oblast";
                    $testparam['oblast'] = $oblast;
            }

            $query = $em->createQuery($testquery)->setParameters($testparam);
            $result = $query->getResult();

Answer 2

andx全部为小写
andx是expr（）的函数，而不是查询构建器的函数：

$ conditions = call_user_func_array（array（$ qb-＆gt; expr（），'andx'），$ conditions）;

Answer 3

关于你的编辑：

$qb = $em->createQueryBuilder();
            $qb->select('c')
            ->from('Baza\BlogBundle\Entity\Conferences', 'c');

使用doctrine（作为ORM）来选择整个对象。你仍然可以在字段上的where子句。另外gt和lt字符串搜索不是真正适合sql的做法。如果信件不当，他们可能会产生奇怪的结果。

Answer 4

几年后，这就是我的做法：

    if (array_key_exists('phone', $filters)) {
        $qb->andWhere('p.phone LIKE :phone')
        ->setParameter(':phone', '%' . $filters['phone'] . '%');
    }

希望这对某人有帮助

构建动态Doctrine查询

4 个答案: