SailsJS reverse destruction of created models fails - sails.js

Question

Suppose I have 2 models (one-to-many); Center model (one) - Room model (many).
When creating a center, an array of rooms is created in the Center.Create callback.
If a room creation fails, it should destroy all the created data before the failed room entity.
CenterController create:
create: function(req, res) {
console.log('params: ', req.params.all());
var centerObj = {
name: req.param('center_name'),
state: req.param('center_state')
};
var roomsInput = req.params('rooms');
console.log('created center centerObj: ', centerObj);
Center.create(centerObj, function centerCreated(err, center) {
if (err) {
console.log(err);
req.session.flash = {
err: err
}
console.log("Error in center create")
return res.redirect('/center/new');
}
// keep track of successfully created rooms
var created_rooms_ids = new Array();
async.mapSeries(
// array to iterate over
roomsInput,
// iterator function
function(roomInput, cb)
{
var roomObj = {
name: roomInput.name,
center: center.id,
min_age: roomInput.min_age,
max_age: roomInput.max_age
};
Room.create(roomObj, function roomCreated(err, room) {
if (err) {
console.log("Room.create error: ", err);
return cb(err);
}
created_rooms_ids.push(room.id);
return cb(null, room.id);
});
},
// callback for when the loop is finished
function(err, results)
{
if (err) {
console.log('error');
return destroyCreatedResources(err);
}
console.log('center: ', center);
return res.redirect('/center/show/' + center.id);
// destroy created resources (center + room)
function destroyCreatedResources(err)
{
console.log("destroyCreatedResources. Center=", center.id, "Id=", created_rooms_ids);
Center.destroy({id: center.id}).exec(function(e){
Room.destroy({id: created_rooms_ids}).exec(function(e){
console.log('Room.destroy');
if (e) {console.log('Room.destroy error!!!!!!!!!!!!!!!!!!!!!!');}
return res.serverError(err);
});
});
}
}
);
});
},
Problem
When an error happens in the middle and I want to perform reverse destruction of all the created rooms, only the center is destroyed.
How come res.serverError(err); is called before the Rooms are destroyed?
function destroyCreatedResources(err)
{
Center.destroy({id: center.id}).exec(function(e){
console.log('Room.destroy');
if (e) {console.log('Room.destroy error!!!!!!!!!!!!!!!!!!!!!!');}
Room.destroy({id: created_rooms_ids}).exec(function(e){
return res.serverError(err);
});
});
}
Are there better ways to do reverse destruction?

Answer 1

Looks like this was due to a bug in sails-mongo v0.10.0-rc2. This has now been patched and released as v0.10.0-rc3, so you can pull down the latest from npm and the issue should be resolved. Thanks!