I am trying to update a field on a query hook. For example:

var mySchema = new Schema({
  name: String,
  queryCount: {type: Number, default:0}
});

I want to increment and update queryCount field on each find or findOne query.

mySchema.post('find', function (doc) {
  // here is the magic
});

I have tried a few things but no success so far. Can I achieve this in model or do I have to do it in the controller?

I am trying to update a field on a query hook. For example:

var mySchema = new Schema({
  name: String,
  queryCount: {type: Number, default:0}
});

I want to increment and update queryCount field on each find or findOne query.

mySchema.post('find', function (doc) {
  // here is the magic
});

I have tried a few things but no success so far. Can I achieve this in model or do I have to do it in the controller?

• javascript
• node.js
• mongoose
• hook

• What have you tried? doc.update({$inc: {queryCount: 1}}, callback) doesn't work? – Jason Cust Commented Jul 15, 2015 at 2:35
• @JasonCust That's what the OP is asking, whether the same can be done on at the model level. This query will have to be run on the controller. – ZeMoon Commented Jul 15, 2015 at 5:42

2 Answers 2

What you want is a post init hook

mySchema.post('init', function (doc) {
  doc.queryCount++;
  doc.save();
});

Alternatively, you could use a mongoose static method which internally calls findAndUpdate()

mySchema.statics.findWithIncrement = function (query, callback) {

    this.findAndUpdate(query, { $inc: { queryCount: 1 })
        .exec(function(err, res) {

            if (err) return callback(err);

            //Handle response
        });
}

And then use the method in your controllers:

MyModel.findWithIncrement({name: "someName"}, function (err, result) {

})