Re: [mongoose] Model.update with dynamic field name

[Aaron Heckmann]

This is just how javascript works. If you want to dynamically set your
properties do this:

var path ="comments.0";

var update = {};
update[path] = { text: 'test test' };

BlogModel.update({ _id: blog._id }, { $set: update }, function (err) {


On Wed, Aug 22, 2012 at 3:36 AM, dipesh acharya
<dipesh....@gmail.com> wrote:
> Hi,
>
> I am building a threaded comment with mongodb. My Schemas are as below.
>
>> var CommentSchema = new Schema({
>> name:String,
>> url:String
>> text:string
>> comments:[CommentSchema]
>> });
>
>
>> var BlogSchema = new Schema({
>> title:String,
>> body:String,
>> comments:[CommentSchema],
>> ....
>> });
>
>
> I was able to update Blog Model with hard coded path 'comments.0' as below.
>
>> BlogModel.update({ _id: blog._id }, { $set: { 'comments.0': { name:
>> 'dipesh',..,.. }}}, function (err) {
>> }
>
>
> However, trying to pass field name as variable, surprisingly it didn't work.
> Rather separate record with field name "path" gets added.
>>
>> var path ="comments.0";
>>
>> BlogModel.update({ _id: blog._id }, { $set: {path: { text: 'test test'
>> }}}, function (err) {
>> }
>
>
> Looks like I am missing some basic stuffs.
> How can I set the path variable for above update to work?
>
> Thank You,
> Dipesh
>
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>



--
Aaron
@aaronheckmann

[dipesh acharya]

ta-da.. that worked like a charm! 

Big Thank You, Aaron. 

I also came to know, it had nothing to do with mongoosejs. 

It was about javascript bracket notation.

Thanks,

Dipesh