mysql - 用于获取矩形内地理空间点 st_的 DQL 查询

Question

我想编写 DQL 查询来选择 map 中矩形内的所有点。矩形由左上点和右下点定义。看这个link了解更多详情。

为此，我编写了以下 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");

我收到的错误是:

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

供您引用，我正在查询的实体具有定义如下的 geom 属性:

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

供您引用，SQL 查询工作正常。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(例如 st_within)的库是 creof/doctrine2-spatial 。

准备好接受任何建议来解决这个问题。

谢谢

---

问题更新

我尝试了您提出的解决方案，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 'SELECT COUNT(*) AS dctrn_count FROM (SELECT DISTINCT id_0 FROM (SELECT m0_.id AS id_0, m0_.price ASprice_1, m0_.year ASyear_2, m0_.km AS km_3) 时发生异常, m0_.slug AS slug_4, m0_.title AS title_5, m0_.description AS 描述_6, m0_.address AS 地址_7, m0_.isPublished AS isPublished_8, m0_.delegation AS delegate_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'，参数为 [{}, {}]:

SQLSTATE[22007]:无效的日期时间格式:1367 解析期间发现非法的非几何“10.090792984009 36.837170993382”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");

我从文档中获取它:https://github.com/creof/doctrine2-spatial/blob/master/doc/index.md