Symfony/Doctrine错误:“未定义类‘FROM’。”在getResult()上
我正在开发我的第一个symfony应用程序,在尝试使用queryBuilder时,我已经为一个问题挣扎了几个小时 我正在尝试执行SQL查询,出现以下错误: request.CRITICAL:Uncaught PHP异常原则\ORM\Query\QueryException:[语义错误]第0行,第288列“FROM StatsBundle\Entity\PlayerRealMatch”附近:错误:未定义类“FROM” 基本上,我存储的是足球运动员的得分和目标,现在我想用总和和平均值来检索这些数据的集合 我在一个服务中,在我的PlayerRealMatchRepository中调用一个方法,该方法的核心代码如下:Symfony/Doctrine错误:“未定义类‘FROM’。”在getResult()上,symfony,doctrine,doctrine-query,symfony-3.2,Symfony,Doctrine,Doctrine Query,Symfony 3.2,我正在开发我的第一个symfony应用程序,在尝试使用queryBuilder时,我已经为一个问题挣扎了几个小时 我正在尝试执行SQL查询,出现以下错误: request.CRITICAL:Uncaught PHP异常原则\ORM\Query\QueryException:[语义错误]第0行,第288列“FROM StatsBundle\Entity\PlayerRealMatch”附近:错误:未定义类“FROM” 基本上,我存储的是足球运动员的得分和目标,现在我想用总和和平均值来检索这些数据的
$qb = $this->createQueryBuilder('prm');
$qb->select(
"SUM(prm.has_started) as tit,
SUM(prm.has_entered) as rempl,
SUM(prm.yellow_cards) as yc,
SUM(prm.red_card) as rc,
SUM(prm.goals) AS gf,
SUM(prm.own_goals) as ga,
AVG(prm.rating) as avg"
)
->innerJoin('prm.realMatch', 'rm')
->where('prm.playerId = :idPlayer')
->groupBy('rm.season')
->setParameter('idPlayer', $player->getId())
->getQuery();
$query =$qb->getQuery();
$seasonData = $query->getResult();
如果我使用调试器查看$query对象的_dql属性,下面是我得到的:
SELECT SUM(prm.has_started) as tit,
SUM(prm.has_entered) as rempl,
SUM(prm.yellow_cards) as yc,
SUM(prm.red_card) as rc,
SUM(prm.goals) AS gf,
SUM(prm.own_goals) as ga,
AVG(prm.rating) as avg
FROM StatsBundle\Entity\PlayerRealMatch prm
INNER JOIN prm.realMatch rm
WHERE prm.playerId = :idPlayer
GROUP BY rm.season
我觉得没那么糟,你们知道这里出了什么问题吗
注意:下面是我试图实现的一个查询示例,它可以完美地直接在我的数据库上运行:
SELECT SUM(prm.has_started) as tit,
SUM(prm.has_entered) as rempl,
SUM(prm.yellow_cards) as yc,
SUM(prm.red_card) as rc,
SUM(prm.goals) AS gf,
SUM(prm.own_goals) as ga,
AVG(prm.rating) as avg
FROM player_real_match prm
INNER JOIN real_match rm ON prm.real_match_id = rm.id
WHERE prm.player_id = 327
GROUP BY rm.season;
详情如下
3个实体:
游戏者
RealMatch:有关匹配的常规数据
PlayerRealMatch:球员在比赛中的表现
下面是它们各自配置的摘要,以显示它们是如何链接的
StatsBundle\Entity\Player:
...
manyToOne:
real_team:
targetEntity: RealTeam
inversedBy: players
joinColumn:
onDelete: CASCADE
name: real_team_id
referencedColumnName: id
oneToMany:
player_real_matches:
targetEntity: PlayerRealMatch
mappedBy: player
...
从服务调用存储库方法
foreach ($players as $player) {
$this->aggregatePlayerData($player, $match);
}
private function aggregatePlayerData(Player $player, RealMatch $match)
{
$playerStats = $this->_em
->getRepository('StatsBundle:PlayerRealMatch')
->getAggregatedStats($player, $match);
}
public function __construct(EntityManager $entityManager)
{
$this->_em = $entityManager;
}
这是服务。yml关于我的服务
stats.aggregator:
class: StatsBundle\Service\Aggregator
arguments: [ "@doctrine.orm.entity_manager"]
存储库方法
/**
* getAggregatedStats
*
* @param $player the player entity
* @param RealMatch $match the real match entity
*
* @return array
*/
public function getAggregatedStats($player, RealMatch $match)
{
$qb = $this->createQueryBuilder('prm');
$qb->select(
"SUM(prm.has_started) as tit,
SUM(prm.has_entered) as rempl,
SUM(prm.yellow_cards) as yc,
SUM(prm.red_card) as rc,
SUM(prm.goals) AS gf,
SUM(prm.own_goals) as ga,
AVG(prm.rating) as avg"
)
->from('StatsBundle:PlayerRealMatch', 'prm')
->innerJoin('prm.realMatch', 'rm')
->where('prm.playerId = :idPlayer')
->groupBy('rm.season')
->setParameter('idPlayer', $player->getId())
->getQuery();
$query = $qb->getQuery();
$seasonData = $query->getResult();
return $seasonData;
}
很抱歉发了这么长的帖子,我尽量把它记录清楚。
非常感谢你的帮助 您在查询中没有给出from字段,请尝试这样做
$qb = $this->createQueryBuilder('prm');
$qb->select(
"SUM(prm.has_started) as tit,
SUM(prm.has_entered) as rempl,
SUM(prm.yellow_cards) as yc,
SUM(prm.red_card) as rc,
SUM(prm.goals) AS gf,
SUM(prm.own_goals) as ga,
AVG(prm.rating) as avg"
)
->from('StatsBundle:PlayerRealMatch ', 'prm') // this one is missing
->innerJoin('prm.realMatch', 'rm')
->where('prm.playerId = :idPlayer')
->groupBy('rm.season')
->setParameter('idPlayer', $player->getId());
$seasonData = $qb->getQuery()->getResult();
我终于发现了这个问题,我相信这是一个典型的初学者错误: 在select指令中,我使用小写属性,因为这是SQL列的格式 但是,我的实体属性并非如此。下面是select指令的正确语法
"SUM(prm.hasStarted) as tit,
SUM(prm.hasEntered) as rempl,
SUM(prm.yellowCards) as yc,
SUM(prm.redCard) as rc,
SUM(prm.goals) as gf,
SUM(prm.ownGoals) as ga,
AVG(prm.rating) as avg"
因此,结论是:在执行DQL时,始终引用实体属性,而不是DB列
虽然错误消息很奇怪,但我希望有更明确的东西,比如实体X没有属性Y
非常感谢Azam Alvi抽出您的时间。您正在尝试使用保留sql字作为列名, 试着改变
"AVG(prm.rating) as avg" -> "AVG(prm.rating) as avgRating"
谢谢你的建议,但事实上我已经试过了,但没有成功,还是同样的错误。根据我的理解,这是通过以下方式隐式完成的:$this->createQueryBuilder'prm';因为我在PlayerRealMatchRepository上。它实际上显示在我的_dql上,你能给我看一下这个查询的完整函数代码吗。还告诉我你是如何从repo调用这个函数的代码。我用你的问题更新了原始帖子的描述为什么你要调用->getQuery函数两次?删除第一个我这样做是为了调试的目的,我想删除查询。。。刚改成$SECTIONDATA[$player->getId]=$qb->getQuery->getResult;但是当然,它不会改变任何事情我也有同样的问题,除了我使用了count。这救了我。
"SUM(prm.hasStarted) as tit,
SUM(prm.hasEntered) as rempl,
SUM(prm.yellowCards) as yc,
SUM(prm.redCard) as rc,
SUM(prm.goals) as gf,
SUM(prm.ownGoals) as ga,
AVG(prm.rating) as avg"
"AVG(prm.rating) as avg" -> "AVG(prm.rating) as avgRating"