Population to sub-scheme in Mongoose - mongodb

Question

I have two schemas:
Clinic:
var mongoose = require('mongoose'),
Schema = mongoose.Schema;
var ProcedureSchema = mongoose.Schema({
name: {
type: String,
trim: true,
required: true
},
alias: {
type: String,
trim: true,
required: true
}
});
var ClinicSchema = mongoose.Schema({
name: {
type: String,
trim: true,
required: true
},
procedures: [ProcedureSchema]
});
module.exports = mongoose.model('Clinic', ClinicSchema);
and Record:
var mongoose = require('mongoose'),
Patient = require('./patient'),
User = require('./user'),
Clinic = require('./clinic'),
Schema = mongoose.Schema;
var RecordSchema = Schema({
doctor: {
type: Schema.Types.ObjectId,
ref: 'User'
},
clinic: {
type: Schema.Types.ObjectId
},
date: {
type: Date
},
patient: {
type: Schema.Types.ObjectId,
ref: 'Patient'
},
procedure: {
type: [Schema.Types.ObjectId],
ref: 'Clinic'
}
});
module.exports = mongoose.model('Record', RecordSchema);
In record schema i store all ids of procedure, which sub-scheme for Clinic
I want to get full object of procedures in record.
I try this query:
Record.find({}).
populate('procedures.procedure').
populate('doctor').
populate('patient').
exec(function(err, records) {
...
});
But get only array of ids, instead array of objects.
Where is problem?

Answer 1

You totally mix all schemes:
populate('procedures.procedure')
But you have not procedures in RecordSchema. Even if it is type mistake, an you mean procedure.procedures - you don't have procedures in ProcedureSchema.
read more about references in MongoDB especially http://docs.mongodb.org/manual/applications/data-models-tree-structures/
Try to make nesting path less than 2. Something like this:
var User,
Procedure,
Clinic,
Patient,
Record;
function defineModels(mongoose, fn) {
var Schema = mongoose.Schema,
ObjectId = Schema.ObjectId;
User = new Schema({
...
});
Procedure = new Schema({
name: { type: String, trim: true, required: true },
alias: { type: String, trim: true, required: true }
});
Clinic = new Schema({
name: { type: String, trim: true, required: true },
procedures: [ProcedureSchema]
});
Patient = new Schema({
...
});
Record = new Schema({
'date': {type: Date, default: Date.now},
'doctor': {type: ObjectId, ref: 'User'},
'clinic': {type: ObjectId, ref: 'Clinic'},
'patient': {type: ObjectId, ref: 'Patient'},
'procedure': {type: ObjectId, ref: 'Procedure'},
});
mongoose.model('User', User);
mongoose.model('Procedure', Procedure);
mongoose.model('Clinic', Clinic);
mongoose.model('Patient', Patient);
mongoose.model('Record', Record);
fn();
}
exports.defineModels = defineModels;
Hope this help.