Multiple entries in permission collection for same action/subject.

[Singha2]

My code is as below

var mongoose = require('mongoose')
, rbac = require('./lib/');

var db = mongoose.connect('mongodb://localhost/ecommerece_rbac');

if(db)
{
console.log("connected");

var UserSchema = mongoose.Schema({

username: {type:String},
status: {type:String, default:"A"},
createdAt : {type:Date, default:Date.now}

});

UserSchema.plugin(rbac.plugin);

var User = mongoose.model('User', UserSchema);

rbac.init({
ops: [
['create', 'CallRecord'],
['read', 'CallRecord'],
['update', 'CallRecord'],
['delete', 'CallRecord']
],
callcenteragent: [

  ['read', 'CallRecord'],
  ['create', 'CallRecord']

]

}, function (err, ops, callcenteragent) {

var user1 = new User({ username: 'prince' });
user1.save();

 user1.addRole('ops', function () {
    console.log(require('util').inspect(user1.roles[0]));
 });

}

)

}

This is creating 2 document in permission collection for read and create permission in mongo.