猫鼬添加动态列错误

Question

I want to add dynamic columns in my document but when add new column it display error, I m using mongoDB 3.4

router.post('/get-personal-information', function(req, res, next) {
  res.setHeader('Access-Control-Allow-Origin', '*');
Employee.update({_id : req.body._id},{$set:{'name1' : 'dsadas'}}, {upsert:true}, function(err, doc){
    if (err) return res.send(500, { error: err });
    return res.send(doc);
});
});

Error Message ::

{
  "error": {
    "name": "MongoError",
    "message": "'$set' is empty. You must specify a field like so: {$set: {<field>: ...}}",
    "driver": true,
    "index": 0,
    "code": 9,
    "errmsg": "'$set' is empty. You must specify a field like so: {$set: {<field>: ...}}"
  }
}

Answer 1

我找到了解决方案

Use {strict: false} to modify the columns or make any type of operation on columns

router.post('/get-personal-information', function(req, res, next) {
  res.setHeader('Access-Control-Allow-Origin', '*');
Employee.update({_id : req.body._id},{$set:{'name1' : 'dsadas'}}, {strict:false}, function(err, doc){
    if (err) return res.send(500, { error: err });
    return res.send(doc);
});
});

猫鼬添加动态列错误

Mongoos Add dynamic columns Error

mongoose

mongodb

mongoose-schema