mongoose - 'save' method does not exist

mongodb, mongoose, node.js

Solution

The result of a `find` is an array of records. You probably meant to loop over those records like this:

Person.find({ uid: /19524121/ }).select('name').exec(function(err, data){
  for(var i = 0; i < data.length; i++) {
     var myData = new Person(data[i]);
     myData.name = "try to save me now";
     myData.save(); // It works now!
  }
}

Also, from the mongoose homepage, it appears that the function callback prototype is `function(err, data)`, not the other way around, which you corrected above.

Look at this from the homepage:

var fluffy = new Kitten({ name: 'fluffy' });

If `data[0]` currently has a regular JSON object, we need a line like this to convert to a BSON model object.

var myData = new Person(data[0]);

Problem

Consider a mongodb collection running on MongooseJS. Sample Code: ``` Person.where('uid').equals(19524121).select('name').exec(function(err, data){ // Here I can get the data correctly in an array. console.log(JSON.stringify(data)); data[0].name = "try to save me now"; // Select the first item in the array data[0].save(); // Object #<Promise> has no method 'save'. } ``` Error - Cant seem to figure out a way to fix this. Object #<Promise> has no method 'save'; I am a little confused on why this is happening and I have researched quite a bit and can't seem to find a direct answer for this.

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