app/models/queryConditions/userMatchesRequester.js
var ObjectId = require('mongoose').Types.ObjectId;
/**
* Callbacks query conditions that match user attribute to requester user ID
* @param {Object} req - Express request object
* @param {callback} done
*/
module.exports = function(req, done) {
done(undefined, { user: ObjectId(req.user.id) });
};