Question

我有以下代码提供以下异常，我无法弄清楚原因，任何帮助都将不胜感激。

参数号无效：绑定变量数不匹配令牌数量

if (!empty($ids)) {
            $queryIds = implode(",", $ids);
            $query = $em->createQueryBuilder()
                        ->from('MainClientBundle:Posts','p')
                        ->select('p')
                        ->where('p.id >= :rand')
                        ->where('p.id NOT IN (:ids)')
                        ->orderBy('p.id','ASC')
                        ->setParameter('rand', rand(1, $max))
                        ->setParameter('ids', $queryIds)
                        ->setMaxResults(1);
        } else {
            $query = $em->createQueryBuilder()
                ->from('MainClientBundle:Posts','p')
                ->select('p')
                ->where('p.id >= :rand')
                ->orderBy('p.id','ASC')
                ->setParameter('rand', rand(1, $max))
                ->setMaxResults(1);
        }
        try {
            if($options['videos'] == "off"){
                $query->where("p.type <> :type")->setParameter("type",1);
            }
            if($options['sfw'] == "on"){
                $query->where("p.safeForWork <> :sfw")->setParameter("sfw",0);
            }
            $post = $query->getQuery()->getSingleResult();
        } catch (\Doctrine\Orm\NoResultException $e) {
            $post = null;
        }

Answer 1

您的第一个问题就是问题。您的查询应如下所示

if (!empty($ids)) {
    $queryIds = implode(",", $ids);
    $query = $em->createQueryBuilder()
                ->from('MainClientBundle:Posts','p')
                ->select('p')
                ->where('p.id >= :rand')
                ->andWhere('p.id NOT IN (:ids)')
                ->orderBy('p.id','ASC')
                ->setParameter('rand', rand(1, $max))
                ->setParameter('ids', $queryIds)
                ->setMaxResults(1);
} else {
    $query = $em->createQueryBuilder()
        ->from('MainClientBundle:Posts','p')
        ->select('p')
        ->where('p.id >= :rand')
        ->orderBy('p.id','ASC')
        ->setParameter('rand', rand(1, $max))
        ->setMaxResults(1);
}
try {
    if($options['videos'] == "off"){
        $query->where("p.type <> :type")->setParameter("type",1);
    }
    if($options['sfw'] == "on"){
        $query->where("p.safeForWork <> :sfw")->setParameter("sfw",0);
    }
    $post = $query->getQuery()->getSingleResult();
} catch (\Doctrine\Orm\NoResultException $e) {
    $post = null;
}

请注意，我改变了你在哪里和哪里。在同一查询构建器中使用两个where（）时，第一个将被第二个覆盖。

Answer 2

正如上面评论中所述，问题在于->where在查询构建器中的双重用法。如果您想要合并多个where子句，则需要使用->andWhere或/和->orWhere。

此外，我将结果更改为->getOneOrNullResult()，因此您不需要使用用于捕获教义异常的整个try / catch块。

if (!empty($ids)) {
    $queryIds = implode(",", $ids);
    $query = $em->createQueryBuilder()
        ->from('MainClientBundle:Posts','p')
        ->select('p')
        ->where('p.id >= :rand')
        ->where('p.id NOT IN (:ids)')
        ->orderBy('p.id','ASC')
        ->setParameter('rand', rand(1, $max))
        ->setParameter('ids', $queryIds)
        ->setMaxResults(1);
} else {
    $query = $em->createQueryBuilder()
        ->from('MainClientBundle:Posts','p')
        ->select('p')
        ->where('p.id >= :rand')
        ->orderBy('p.id','ASC')
        ->setParameter('rand', rand(1, $max))
        ->setMaxResults(1);
}

if($options['videos'] == "off"){
    $query->where("p.type <> :type")->setParameter("type",1);
}
if($options['sfw'] == "on"){
    $query->where("p.safeForWork <> :sfw")->setParameter("sfw",0);
}

$post = $query->getQuery()->getOneOrNullResult();

学说参数问题

2 个答案: