Yii2 查询未正确引用

Question

我运行陷入这个问题，一次又一次。很高兴找出如何正确构建查询，这样我就可以停止使用 Yii::$app->db->createCommand() 作为解决方法。

我的 Yii2 查询：

            $users = UserSpatial::find()
            ->select('user_id, harvesine(y(coordinates), x(coordinates), :lat, :lon) as dist, astext(coordinates)')
            ->where('st_within(coordinates, envelope(linestring(point(:rlon1, :rlat1), point(:rlon2, :rlat2))))')
            ->orderBy('st_distance(point(:lon, :lat), coordinates)')
            ->params([
                ':lon' => $geo->lon,
                ':lat' => $geo->lat,
                ':rlon1' => $rlon1,
                ':rlat1' => $rlat1,
                ':rlon2' => $rlon2,
                ':rlat2' => $rlat2
            ])
            ->all();

生成的查询在所有错误的地方都带有反引号，奇怪的是，并非所有参数都被反引号（抱歉，但您需要仔细查看错位的反引号，因为我不知道如何最好地突出显示不正确的位置):

SELECT \`user_id\`, harvesine(y(coordinates), x(coordinates),      \`32.7699547\`, \`-116.9911288)\` AS \`dist\`, astext(coordinates) 
FROM \`user_spatial\` 
WHERE st_within(coordinates, envelope(linestring(point(-117.07730792871, 32.697490931884), point(-116.90494967129, 32.842418468116)))) 
ORDER BY st_distance(point(-116.9911288, \`32.7699547)\`, \`coordinates)\`

查询应如下所示，因为我没有用双方括号括住任何字段或值：

SELECT \`user_id\`, harvesine(y(coordinates), x(coordinates),      32.7699547, -116.9911288) AS dist, astext(coordinates) 
FROM \`user_spatial\` 
WHERE st_within(coordinates, envelope(linestring(point(-117.07730792871, 32.697490931884), point(-116.90494967129, 32.842418468116)))) 
ORDER BY st_distance(point(-116.9911288, 32.7699547), coordinates)

我可以接受 Yii2 在字段名称和 table 名称周围添加一些反引号，但到底为什么要反引号呢？（仅供参考：$rlon 和 $rlat 值似乎没有反引号，但我假设这是因为它们是数学计算的结果！？！？）。

我已经尝试过强制 $geo->lon 和 $geo->lat 像这样浮动值：

'lon' => (float)$geo->lon;

或

'lon' => (float)$geo->lon * 1;

但没有用。

Answer 1

尝试对 select 和 orderBy 方法使用数组格式，例如 docs suggest:

Besides column names, you can also select DB expressions. You must use the array format when selecting a DB expression that contains commas to avoid incorrect automatic name quoting. For example,

$query->select(["CONCAT(first_name, ' ', last_name) AS full_name", 'email']);

你的情况是这样的：

$users = UserSpatial::find()
->select([
    'user_id', 
    'harvesine(y(coordinates), x(coordinates), :lat, :lon) as dist',
    'astext(coordinates)'
])
->where('st_within(coordinates, envelope(linestring(point(:rlon1, :rlat1), point(:rlon2, :rlat2))))')
->orderBy(['st_distance(point(:lon, :lat)', 'coordinates)'])
->params([
    ':lon' => $geo->lon,
    ':lat' => $geo->lat,
    ':rlon1' => $rlon1,
    ':rlat1' => $rlat1,
    ':rlon2' => $rlon2,
    ':rlat2' => $rlat2
])
->all();

Yii2 查询未正确引用

Yii2 Query not quoting correctly

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query-builder

yii2