node.js - Deep populate self referencing schema in mongoose -

i have self referencing employee schema in mongoose.

var mongoose = require('mongoose'); var schema = mongoose.schema;  var employee = new schema({   name: string,   description: {     type: string,     default: 'no description'   },  manager: {      type: schema.types.objectid,      ref: 'employee',       default: null   },   reportee: [{     type: schema.types.objectid,     ref: 'employee'   }]  }); 

an employee can manager & can have several reportee. if manager null employee treated top level employee.

i need created hierarchy based on model. struggling generate desired output.

so far have tried use popluate() & mongoose-deep-populate module unable desired output. wonder becuase have self referencing model. or may not using these 2 options properly.

this have tried deep-populate module. seems populating reportee model not repotree of reportee model. in short populating 1 level of records.

employee.deeppopulate(employees, 'reportee.reportee.reportee.reportee.reportee', function (err, _employee) {       employees.foreach(function (employee) {        });     }); 

please suggest how can retrive employee hierarchy ?

to answer own question, using mongoose-deep-populate library.

to use need install module:

npm install mongoose-deep-populate 

//register plugin var deeppopulate = require('mongoose-deep-populate'); employee.plugin(deeppopulate);

and use code:

employee.deeppopulate(employees, 'reportee.reportee.reportee.reportee.reportee', function (err, _employee) {       employees.foreach(function (employee) {        });     }); 

this load 5 levels of reportees have mentioned reportee.reportee.reportee.reportee.reportee