CODEWITHSUNDEEP
methodsmeteormongodb-query
em.rexhepi
em.rexhepi

Reputation: 289

MeteorJS can not update count on document

This is my function and it does not update the count on the NumStat collection document.

Meteor.methods({
addDocument: function(array){
    object = {
        numbers : array,
        date : new Date()
    }
    NumArray.insert(object);

    for (var i = 0; i < array.length; i++) {
        NumStat.update({num : array[i]},{$inc : {count : 1}});
        console.log(NumStat.findOne({num : array[i]})); // this throws undefined
    }
}
});

if I do something like: NumStat.update({num : 2},{$inc : {count : 1}}); It works perfectly but not something like the example that I motioned !? What is wrong with this method and how can I come to the result that I want ? Increasing the count on the NumStat documents finding the document by array[item]

Solution : It was my bad because the value on the array was a string and the num value on the database was an int. The solution was using parseInt(array[i]). A better solution will be using findAndModify as @Dewfy mentioned.

Upvotes: 0

Views: 38

Answers (1)

Dewfy
Dewfy

Reputation: 23614

I don't know JavaScript implementation for Mongo at all, but:

  1. update for other dialect (Java or C#) doesn't create record but update existing one, so review usage of save
  2. In Mongo there is a conception of 'write concern' - that may delay real writing. Ensure that you deal with Acknowledged.

p.s. Instead of loop use findAndModify with specifying array of IDs to modify - then you could avoid loop and place modification logic to server side

Upvotes: 1

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