NodeJS with mongoose: E11000 duplicate key error collection - node.js

Question

This is the story: new to NodeJS > trying to seed a mongoDB database using mongoose > need help.
I have two collections: Users (or players) and Teams.
Seed goal: to create some Users and then create some Teams, populated with some of those Users.
Here is my User schema:
var mongoose = require('mongoose');
var passportLocalMongoose = require('passport-local-mongoose');
var UserSchema = new mongoose.Schema({
name: String,
username: String,
password: String
});
UserSchema.plugin(passportLocalMongoose);
module.exports = mongoose.model("User", UserSchema);
Here is my Team schema:
var mongoose = require('mongoose');
var passportLocalMongoose = require('passport-local-mongoose');
var TeamSchema = new mongoose.Schema({
name: String,
users: [
{
type: mongoose.Schema.Types.ObjectId,
ref: "User"
}
]
});
TeamSchema.plugin(passportLocalMongoose);
module.exports = mongoose.model("Team", TeamSchema);
And this is the seeding attempt:
var mongoose = require('mongoose');
function seed(collectionName, data, schema){
schema.remove({}, function(err){
if(err){
console.log(collectionName + ".remove: " + err);
} else {
console.log("All " + collectionName + " collection removed");
data.forEach(function(dt){
schema.create(dt, function(err, newData){
if(err){
console.log(collectionName + ".create: " + err);
} else {
console.log(collectionName + " added: " + newData.name);
}
});
});
}
});
}
function seedDB(){
var userData = require('./data/userData'),
userSchema = require('../../models/user');
seed("User", userData, userSchema);
var teamData = require('./data/teamData'),
teamSchema = require('../../models/team');
seed("Team", teamData, teamSchema);
};
module.exports = seedDB;
Yes, I tried to encapsulate the seed function, so I could use it in every collection I would possibly want to seed (in fact, I believe this is the problem).
userData:
module.exports = [
{
name: "Name1",
username: "nickname1",
password: "pass"
},
{
name: "Name2",
username: "nickname2",
password: "pass"
}
];
teamData:
module.exports = [
{
name: "Team1",
users: [
{ "_id" : "594497aa0a403b183ce7e485", "name" : "Name1", "username" : "nickname1", "password" : "pass", "__v" : 0 },
{ "_id" : "594497aa0a403b183ce7e486", "name" : "Name2", "username" : "nickname2", "password" : "pass", "__v" : 0 }
]
},
{
name: "Team 2",
users: [
{ "_id" : "594497aa0a403b183ce7e485", "name" : "Name1", "username" : "nickname1", "password" : "pass", "__v" : 0 }
]
}
];
When I run seed(), I get this error message:
Team.create: WriteError({"code":11000,"index":0,"errmsg":"E11000 duplicate key error collection: pastinha2.teams index: username_1 dup key: { : null }","op":{"name":"Team 2","_id":"5944afd68157e62190ec1919","users":["594497aa0a403b183ce7e485"],"__v":0}})
As far as I could understand, the problem is the order things are being executed, since the query calls are asynchronous. Not sure if this is really the issue, but if it is, how can I prevent it from happening?
Sorry for the long post, but I found several threads with similar problems, and I'm still really stuck here. Could use some help.
Thanks in advance.

Answer 1

you should use Seedgoose instead. It supports smart references. In this case, it won't cause conflict error for you.