MongooseJS Save won't call callback - node.js

Question

I am using MongooseJS to connect to MongoDB
I am creating a a new Team. Once I save the team, I want to add a reference to the team for my user. But unfortunately, whenever I go to add the team to my user and save the user my callback is not called. Any ideas why?
TeamRepository.prototype.createForUser = function(user, data, callback) {
var team,
_this = this;
if (user == null) {
user = null;
}
if (data == null) {
data = {};
}
if (callback == null) {
callback = (function() {});
}
team = new Team({
name: data.name,
description: data.description,
state: data.state
});
return this.save(team, function(err) {
if (err) {
return callback(err, team);
} else {
user.teams.push({
team: team._id
});
return _this.save(user, function(err) {
return callback(err, team);
});
}
});
};
Specifically this line. Notice I have two nested saves.
return _this.save(user, function(err) {
return callback(err, team);
});
Any help would be great.

Answer 1

I have solved the issue. In my user model, I had hooked into the save event and was not calling next() to move along the save.
schema.pre('save', function(next) {
var _this = this;
if (this.isNew || this.isModified('password')) {
return hashPassword(this.password, function(err, hash) {
if (err) {
return next(err);
}
_this.password = hash;
return next();
});
} else {
return next(); // missing this
}
});
And here is what my TeamRepository.save() looks like since you asked.
TeamRepository.prototype.save = function(model, callback) {
if (model == null) {
model = null;
}
if (callback == null) {
callback = (function() {});
}
if (model) {
model.increment();
return model.save(callback);
} else {
if (callback) {
return callback(null);
}
}
};