mongodb mongoose node.js

Can’t find documents searching by ObjectId using Mongoose

  Campaign.find {client_id:req.param('client_id')}, (error, campaigns) ->
if error
response =
error: error.message
for campaign in campaigns
query =
campaign_id: campaign._id
console.log query
CampaignResponse.find query, (err, campaignResponsesCount) ->
console.log campaignResponsesCount
response = campaigns
res.json response

For some reason, this returns no results. However, there are items in CampaignResponse with that specific campaign._id. I’m pretty sure this is an issue with types and casting, but I can’t figure out what to do.

Any help?

A couple tips:

  • Try running the same query from mongodb at the command line, see if you get any results.
  • Is the “campaign_id” defined as an ObjectId in your schema? If so, try searching using the ObjectId type.

For example:

var ObjectId = require('mongoose').Types.ObjectId; 
var query = { campaign_id: new ObjectId(campaign._id) };