无法在sequelize中找到最近的几何点-mysql

f5emj3cl  于 2021-06-21  发布在  Mysql
关注(0)|答案(0)|浏览(247)

这是模型:

'use strict'; module.exports = () => {
var restaurant = {
    id: {
        type: Sequelize.INTEGER,
        primaryKey: true,
        autoIncrement: true
    },
    businessCordinates: {
        type: Sequelize.GEOMETRY('POINT'),
        allowNull: true
    }

};

return sequelize.define('restaurant', restaurant); };

所以我试着找到最近的点,以公里为单位。
下面是我使用sequelize和dialect作为mysql的查询:

exports.search = (req, res) => {

let where = {};
if (req.query.lat && req.query.lng && req.query.range) {
    var lat = parseFloat(req.query.lat);
    var lng = parseFloat(req.query.lng);

    query.where = Sequelize.where(
        Sequelize.fn('ST_DWithin',
            Sequelize.col('businessCordinates'),
            Sequelize.fn('ST_SetSRID',
                Sequelize.fn('ST_MakePoint',
                    lat, lng),
                4326),
            0.032),
        true);

    // var attributes = Object.keys(db.restaurant.attributes);

    // var location = sequelize.literal(`ST_GeomFromText('POINT(${lat} ${lng})')`);
    // var distance = sequelize.fn('ST_Distance_Sphere', sequelize.literal('businessCordinates'), location);
    // attributes.push([distance, 'distance']);

    // query.attributes = attributes;
    // query.order = distance;
    // query.where = sequelize.where(distance, {
    //     $lte: req.query.range
    // })
}

db.restaurant.findAll(query).then(restaurants => {
    return res.page(restaurants);
}).catch(err => {
    res.failure(err);
}); };

所以当我试着去像{host}}/api/restaurants这样的餐馆时,lat=40.741895&lng=-73.989308&range=12
此查询会出现如下错误:sqlmessage=function foodway\u db.st\u dwithin不存在
告诉我怎么做?

暂无答案!

目前还没有任何答案,快来回答吧!

相关问题