SQL 使用 Laravel Eloquent 和命名绑定进行查询：混合命名参数和位置参数

Question

我正在尝试执行以下查询。请注意，我必须在此查询中使用 命名参数 。我不明白这个问题，因为我似乎只使用命名参数。如何使命名参数起作用？

Note : the query is fully functionnal when I'm executing it in DB or in laravel with a simple DB::table(users)->select( $sql_with_values_inside )

我是 Laravel 的新手，所以也许我做错了。

查询

$latitude = (float)$latitude;
$longitude = (float)$longitude;
$radius = (float)$radius;

$sql = '`firstname`,`lastname`,`email`,
     ST_X(`coordinates_public`) AS latitude,
     ST_Y(`coordinates_public`) AS longitude,
     (6371 * ACOS(COS(RADIANS(:latitude)) * COS(RADIANS(ST_Y(coordinates_private))) * COS(RADIANS(ST_X(coordinates_private)) - RADIANS(:longitude)) + SIN(RADIANS(:latitude)) * SIN(RADIANS(ST_Y(coordinates_private))))) AS distance';

$washers = DB::table('users')
    ->selectRaw($sql, ['latitude' => $latitude,'longitude'=> $longitude,'radius'=> $radius])
    ->whereRaw('MBRContains ( LineString (
        Point (
            :longitude + :radius / (111.320 * COS(RADIANS(:latitude))),
            :latitude + :radius / 111.133
        ),
        Point (
            :longitude - :radius / (111.320 * COS(RADIANS(:latitude))),
            :latitude - :radius / 111.133
        )), `coordinates_private`
    )', ['latitude' => $latitude,'longitude'=> $longitude,'radius'=> $radius])
    ->having('distance < :radius', ['radius'=> $radius])
    ->orderBy('distance')
    ->get();

错误

Illuminate\Database\QueryException: SQLSTATE[HY093]:
Invalid parameter number: mixed named and positional parameters (SQL: select `firstname`,`lastname`,`email`,
    ST_X(`coordinates_public`) AS latitude,
    ST_Y(`coordinates_public`) AS longitude,
    (6371 * ACOS(COS(RADIANS(:latitude)) * COS(RADIANS(ST_Y(coordinates_private))) * COS(RADIANS(ST_X(coordinates_private)) - RADIANS(:longitude)) + SIN(RADIANS(:latitude)) * SIN(RADIANS(ST_Y(coordinates_private))))) AS distance from `users` where MBRContains (
    LineString
        (
        Point (
            :longitude + :radius / (111.320 * COS(RADIANS(:latitude))),
            :latitude + :radius / 111.133
        ),
        Point (
            :longitude - :radius / (111.320 * COS(RADIANS(:latitude))),
            :latitude - :radius / 111.133
        )
     ),
    `coordinates_private`) having `distance < :radius` = 4.8312518210935 order by `distance` asc)

Answer 1

我不确定这是否是问题所在，但据我所知您不能多次使用相同的参数名称，例如对于这部分查询：

:longitude + :radius / (111.320 * COS(RADIANS(:latitude))),

你应该使用：

:longitude + :radius / (111.320 * COS(RADIANS(:latitude2))),

然后传递3个参数：

['latitude' => $latitude,'longitude'=> $longitude, 'latitude2' => $latitude]

当然，对于查询的其他部分，您应该尝试同样的事情。请记住，我对此不是 100% 确定，因为我很少使用命名参数。

Answer 2

在 select 中您没有 :radius 但尝试绑定它。应该是

    ->selectRaw($sql, ['latitude' => $latitude,'longitude'=> $longitude])

Answer 3

来自 PHP 手册：

You must include a unique parameter marker for each value you wish to pass in to the statement when you call PDOStatement::execute(). You cannot use a named parameter marker of the same name more than once in a prepared statement, unless emulation mode is on.

因此您不能使用同名的命名参数标记。

有两种解决方案：

对相同的值使用不同的命名绑定键：

$sql = "(6371 * ACOS(COS(RADIANS(:lat)) * COS(RADIANS(ST_Y(coordinates_private))) * COS(RADIANS(ST_X(coordinates_private)) - RADIANS(:long)) + SIN(RADIANS(lat2)) * SIN(RADIANS(ST_Y(coordinates_private))))) AS distance";
...
->selectRaw($sql, ["lat" => $latitude, "long" => $longitude, "lat2" => $latitude])

使用?代替命名绑定和绑定数组:

$sql = '(6371 * ACOS(COS(RADIANS(?)) * COS(RADIANS(ST_Y(coordinates_private))) * COS(RADIANS(ST_X(coordinates_private)) - RADIANS(?)) + SIN(RADIANS(?)) * SIN(RADIANS(ST_Y(coordinates_private))))) AS distance';
...
->selectRaw($sql, [$latitude, $longitude, $latitude])

SQL 使用 Laravel Eloquent 和命名绑定进行查询：混合命名参数和位置参数

SQL query with Laravel Eloquent and named bindings : mixed named and positional parameters

php

mysql

pdo

laravel

laravel-query-builder