Question

我有两个包含以下内容的集合：

"DeviceId" : "",
"FirstName" : "", 
"LastName" : "", 
"AllowDomains" : "", 
"JobLocationName" : ""

等等。我编写此查询首先检查collection1中的deviceId是否与collection2中的deviceId相同。如果相同则不做任何事情，否则必须复制到temp集合中。但首先：它根本没有比较，这些代码复制所有文件？第二，复制过程中间我收到了错误？

function compareCollection (dv, F2){

  var compare = F2.find().forEach(function(doc1){             

    if (doc1.DeviceId === dv ) {
      return false;
    } else {
      insertToColl(doc1.DeviceId)

    }
  });      
}


var result;
db.getCollection('FinalLocation').find({}, {DeviceId:  1}).forEach(function(u)
 {
  result = u.DeviceId;  
});

compareCollection(result , db.getCollection('FinalLocation_'));

function insertToColl(info){

 var post  = {
"DeviceId" : info,
"FirstName" : "", 
"LastName" : "", 
"AllowDomains" : "", 
"JobLocationName" : ""
};

db.getCollection('tempColl').save([post], function (err, result) {
        if (err) {
            console.log("ERROR ", err);
        }
        else {
            console.log("SUCCESS INSERTED in to users collection _is are ", result.length, result)
        }
    });
}

当mongo想要将数据插入集合时会出现这些错误：

2017-09-26T15:41:47.467+0330 E QUERY    [thread1] Error: can't save a  number or string :

DBCollection.prototype.save@src/mongo/shell/collection.js:615:1

insertToColl@(shell):2:3

compareCollection/compare<@(shell):7:7

DBQuery.prototype.forEach@src/mongo/shell/query.js:501:1

compareCollection@(shell):2:17

@(shell):1:1

插入Mongo集合时遇到错误

0 个答案: