node.js - Mongoose Plugin - schema.add to Subschema -

i writing mongoose plugin involves adding elements subschema. thinking quite straightforward, i've been trying unsuccessfully few days now.

below simplification of schema:

var inheritables = require('./inheritables.server.module.js');  var oufieldtypeschema = new schema({    name: string,    desc: string }); var oufieldtype = mongoose.model('oufieldtype', oufieldtypeschema);  var ouschema = new schema({    name: string,    fieldtypes: [oufieldtypeschema], });  ouschema.plugin(inheritables, {inherit: ['fieldtypes']}); mongoose.model('ou', ouschema); 

within body of mongoose plugin, i'd iterate on "inherit" array , add following schemas represent each of these elements in ou schema;

a simplification of plugin follows:

var _ = require('lodash');  module.exports = exports = function(schema, options) {    _.each(options.inherit, function(curritemschema){       var addtoschema = {inheritedfrom: {name: string}};        //really want add oufieldtypeschema represented fieldtypes element array.       schema.add(addtoschema, curritemschema + ".");    }); }); 

note second parameter of add() adds prefix, doesn't work.

i've tried:

_.each(options.inherit, function(curritemschema){     var addtoschema = {};     addtoschema[curritemschema] = {inheritedfrom: {name: string}};     schema.add(addtoschema); }); 

the expected behaviour here elsewhere in plugin, have method sets inheritedfrom schema. no error received when item set, resulting output never sees inheritedfrom elements.

i adding inheritedfrom each subschema used oufieldtype, above simplification , not dry.

i'm new node.js - pointers in right direction appreciated.