问题更新

Question

我想编写DQL查询来选择地图中矩形内的所有点。矩形由左上角和右下角定义。有关详细信息，请参阅此link。

为此，我写了这个DQL查询：

$qb = $this->em->createQueryBuilder()
    ->select("m")
    ->from($this->getEntityClassName(), "m")
    ->where("ST_Within(m.geom, envelope(linestring(:topleft, :bottomright)))")
    ->setParameter(":topleft", $topleft)
    ->setParameter(":bottomright", $bottomright)
    ->orderBy("m.date", "DESC");

我得到的错误是：

[Syntax Error] line 0, col 110: Error: Expected =, <, <=, <>, >, >=, !=, got 'ORDER'

为了您的信息，我正在查询的实体的geom属性定义如下：

/**
 * @var point $geom
 * @ORM\Column(type="point", nullable=true)
 */
protected $geom;

为了您的信息，SQL查询工作正常。它如下：

SELECT *FROM MotorsAds WHERE
st_within(point(lng, lat),         
envelope(linestring(point(10.090792984008772,36.83717099338201 ), 
point(10.310519546508772,36.749467295867646 ))))

我用于DQL数字函数的库（例如我们st_within）是creof/doctrine2-spatial。

准备采取任何建议来解决这个问题。

谢谢，

问题更新

我尝试了你提出的解决方案如下：

    $qb = $this->em->createQueryBuilder()
        ->select("m")
        ->from($this->getEntityClassName(), "m")
        ->where(
            $this->em->createQueryBuilder()->expr()->eq(
                    "ST_Within(m.geom, envelope(linestring(:topleft, :bottomright)))",
                    $this->em->createQueryBuilder()->expr()->literal(true)
                )
        )
        ->setParameter(":topleft", $topleft)
        ->setParameter(":bottomright", $bottomright)
        ->orderBy("m.date", "DESC");

所以，我得到的错误是：

执行＆＃39; SELECT COUNT（*）AS dctrn_count FROM时发生异常（SELECT DISTINCT id_0 FROM（SELECT m0_.id AS id_0，m0_.price AS price_1，m0_.year AS year_2，m0_。 km AS km_3，m0_.slug AS slug_4，m0_.title AS title_5，m0_.description AS description_6，m0_.address AS address_7，m0_.isPublished AS isPublished_8，m0_.delegation AS delegation_9，m0_.lat AS lat_10，m0_.lng AS lng_11，m0_.date AS date_12，m0_.count AS count_13，AsBinary（m0_.geom）AS geom_14 FROM MotorsAds m0_ WHERE ST_Within（m0_.geom，Envelope（LineString（？，？）））= 1 ORDER BY m0_.date DESC ）dctrn_result）dctrn_table＆＃39;使用参数[{}，{}]：

SQLSTATE [22007]：无效的日期时间格式：1367非法非几何＆＃39;＆＃39; 10.090792984009 36.837170993382＆＃39;＆＃39;解析期间找到的值

Answer 1

试试这个：

$qb = $this->em->createQueryBuilder()
    ->select("m")
    ->from($this->getEntityClassName(), "m")
    ->where(
        $queryBuilder->expr()->eq(
                "ST_Within(m.geom, envelope(linestring(:topleft, :bottomright)))",
                $queryBuilder->expr()->literal(true)
            )
    )
    ->setParameter(":topleft", $topleft)
    ->setParameter(":bottomright", $bottomright)
    ->orderBy("m.date", "DESC");

我是从文档中提取的：https://github.com/creof/doctrine2-spatial/blob/master/doc/index.md

Answer 2

下面的解决方案可以防止您将PHP点转换为DQL查询点的问题。

    $qb = $this->em->createQueryBuilder()
        ->select("m")
        ->from($this->getEntityClassName(), "m")
        ->where(
            $this->em->createQueryBuilder()->expr()->eq(
                    sprintf("ST_Within(m.geom, envelope(linestring(point(:topleftX,:topleftY), point(:bottomrightX,:bottomrightY ))))"),
                    $this->em->createQueryBuilder()->expr()->literal(true)
                )
        )
        ->setParameter(":topleftX", $topleftX)
        ->setParameter(":topleftY", $topleftY)
        ->setParameter(":bottomrightX", $bottomrightX)
        ->setParameter(":bottomrightY", $bottomrightY)
        ->orderBy("m.date", "DESC");

用于在矩形中获取地理空间点st_with的DQL查询

问题更新

2 个答案: