php - 如何在 Laravel 4 上执行此查询？

Question

您好，我有一个查询，很难将其转换为 Laravel 风格...

这是我的查询，实际上直接在 phpmyadmin 上运行...

SELECT id, 
            ( 
                6371 * acos( 
                    cos( radians(10.300563558355096) ) * 
                    cos( radians( lat ) ) * 
                    cos( radians( lng ) - radians(123.87308120727539) ) + 
                    sin( radians(10.300563558355096) ) * 
                    sin( radians( lat ) ) 
                ) 
            ) AS distance 
            FROM rescue_units  WHERE type = "hospital" HAVING distance < 25 ORDER BY distance LIMIT 0 , 5;

以及我的模型->RescueUnit.php

<?php

class RescueUnit extends \Eloquent {
    protected $table = 'rescue_units';
    protected $fillable = array("name", "address", "lat", "lng", "email", "type");
}

只是不知道我在实现上是否有错误...需要改进建议...

Answer 1

没关系...我刚刚发现我想做什么...

$lat = 10.300563558355096;
        $lng = 123.87308120727539;
        $type = "hospital";

        $markerByRadius = RescueUnit::select(
               DB::raw("*,
                             ( 6371 * acos( cos( radians(?) ) *
                               cos( radians( lat ) ) * 
                               cos( radians( lng ) - radians(?) ) + 
                               sin( radians(?) ) *
                               sin( radians( lat ) ) )
                             ) AS distance"))
               ->whereRaw('type = ?')
               ->having("distance", "<", "25")
               ->orderBy("distance")
               ->setBindings([$lat, $lng, $lat, $type])
               ->get();
        return $markerByRadius;

我只是设置了下面的绑定(bind)并且相同...