我想实现这一目标
SELECT id,( 3959 * acos( cos( radians(37) ) * cos( radians( lat ) ) * cos( radians( lng ) - radians(-122) ) + sin( radians(37) ) * sin( radians( lat ) ) ) ) AS distance FROM markers HAVING distance < 25 ORDER BY distance LIMIT 0,20;
从https://developers.google.com/maps/articles/phpsqlsearch_v3?hl=fr#createtable
如何使用Bookshelf进行此查询.
我现在有这个：
var raw = '( 3959 * acos( cos( radians(37) ) * cos( radians( '+ req.params.lat + ' ) ) * cos( radians( '+req.params.lng+' ) - radians(-122) ) + sin( radians(37) ) * sin( radians( '+req.body.lng+' ) ) ) ) AS distance';
new Places().query(function(qb) {
qb.where('lat',req.params.lat);
qb.where('lng',req.params.lng);
qb.column(raw);
qb.having('distance','>',25);
}).fetch({ debug: false }).then(function(collection) {
console.log(collection);
if (collection === undefined) {
// no such result
res.json(404,{error: "No Places found."});
} else {
// found,list json
res.json(200,collection);
}
});
