Question

我正在尝试将以下SQL字符串转换为Cake查找查询。这样做有简单的方法吗？

SELECT longitude, latitude, firstname, surname, profile_pic, facebook_id, distance 
                FROM 
              (SELECT longitude, latitude, firstname, surname, profile_pic, facebook_id, 6371 * ACos( Cos( RADIANS( users.latitude ) ) * Cos( RADIANS( $latitude ) ) * Cos( RADIANS( $longitude ) - RADIANS( users.longitude ) ) + Sin( RADIANS( users.latitude ) ) * Sin( RADIANS( $latitude ) ) ) AS distance
               FROM users
              ) as users
              WHERE distance <=2 AND facebook_id != $facebook
              ORDER BY distance
              LIMIT 20

Answer 1

我的代码片段做了类似的事情：

$GeoCache->virtualFields = array(
    'distance' => "SQRT(POW(UserGeolocationCache.latitude - {$latitude},2) + POW(UserGeolocationCache.longitude - {$longitude},2))"
);
$users = $GeoCache->find('all', array(
    'conditions' => array('distance <' => '0.05'),
    'order' => array('distance asc'),
    'contain' => array('User'),
));

TL; DR只是将您的距离计算填入虚拟区域并搜索它。

使用ORM将距离SQL函数转换为Cake友好查询

1 个答案: