MongoDB $gt/$lt operators with prices stored as strings

Question

I\'m trying to query my database for prices greater than/less than a user specified number. In my database, prices are stored like so:

{price: \"300.00\"}
         


        

Answer 1

Alternatively you can convert the values to Int, as per: http://www.quora.com/How-can-I-change-a-field-type-from-String-to-Integer-in-mongodb

var convert = function(document){
var intValue = parseInt(document.field, 10);
  db.collection.update(
    {_id:document._id}, 
    {$set: {field: intValue}}
  );
}

db.collection.find({field: {$type:2}},{field:1}).forEach(convert)