CODEWITHSUNDEEP
javascriptnode.jsmongodbmongoose
anish
anish

Reputation: 7422

How to return from find in nodejs,mongoose mongodb collection

While find() element in mongodb collection, using mongoose, the console.log doesn't executed in the Test.js

In the Test.js, the console.log doesn't print the data from the MongoDb collection

var model =  require('./model');
model.findbyTag('java',function (data)
{
    console.log(data)
});

The Model.js has the following entry

exports.findbyTag = function(tag,out)
{
    var condtion = {"tag" : tag}
     Tag.find(condtion,function(err,out){
          //  console.log(out);
             if (err) console.log('Error returning Tag!');
            else {
               return out;
            }
        });
}

When i uncomment the console.log file in the Model.js , it's log the data matched in the find query,

The callback in test.js file doesn't executed, did i successfully returning data from the Model.js, what wrong i'm doing ?

Upvotes: 0

Views: 668

Answers (1)

Sumeet Kumar Yadav
Sumeet Kumar Yadav

Reputation: 13015

In Model.js findbyTag method is returning function object instead of executing callback function . Also, queried document need to be passed as an argument to callback function. It can be modified like:

exports.findbyTag = function(tag,out)
{
    var condtion = {"tag" : tag}
     Tag.find(condtion,function(err,doc){
          //  console.log(doc);
             if (err) console.log('Error returning Tag!');
            else {
               out(doc);
            }
        });
}

Upvotes: 1

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