How to populate through array of objects in mongoose

Question

I have a data like follows

 "student" : [ 
ObjectId("58500ea5ef914125073b040f"),
ObjectId("58500ea5ef914125073b042e")

],

my model,

  student: [{type: Schema.ObjectId,ref: 'Student'}],

I want to populate student in these array,

  Classroom.findById(id).populate('student.student'){}

It is not working,can anyone please suggest help.Thanks.

Did you add ref to your model's schema student:[{ type: Schema.Types.ObjectId, ref: 'Student' }] — styopdev
– styopdev, Commented Dec 14, 2016 at 7:12
Could you show your schemas' code, and make sure you have appropriate data to populate in db. — styopdev
– styopdev, Commented Dec 14, 2016 at 7:16

Ravi Shankar Bharti · Accepted Answer · 2016-12-14 07:22:06Z

1

From what i can see in your data, student is the array of students, so you need to just write student in the populate query.

this should work for you :

Classroom.findById(id).populate('student').exec(function(err,result){
    ...
});

answered Dec 14, 2016 at 7:22

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