在mongodb运算符中使用javascript数组

Question

我正在尝试在mongodb $ in

中使用javascript数组

它始终用单引号//“室内”，“室外”，“两者”包裹它

我需要它才能工作或喜欢这个 - ＆gt; “室内”， “室外”， “两者”

  url_parts.query.Venue ='Indoor,Outdoor,Both'

  var query={}; 

  if(url_parts.query.Venue!= undefined){

        var myarr  = url_parts.query.Venue.split(",");

        var string='';
        for (var i = 0; i < myarr.length; i++) {

            string+="\""+myarr[i]+"\",";
         };

         string = string.substring(0, string.length - 1)

        query.venues = { $in:[string]};
    }

    attraction.find(query).lean().exec(function(err, attrs) {....

Answer 1

正如我所说$in采用数组：

var url_parts.query.Venue ='Indoor,Outdoor,Both';
var query = {};

query.venues = url_parts.query.Venue.split(",");

所以现在查询看起来像这样：

{ "venues" : { "$in" : [ "Indoor", "Outdoor", "Both" ] } }