ginolin ginolin - 1 year ago 132
Node.js Question

Sails 0.10 ModelIdentity.subscribe or .watch and for publishCreate()?

I'm studying the SailsCasts and I'm working on SailsJS beta version 0.10.

Everything works except when in 0.9.7, I use this:

//subscribe this socket to the User model classroom

// subscribe this socket to the user instance rooms
User.subscribe(req.socket, users);

  • How to do this for 0.10?

Especially, the subscribe for
works fine.

, I need
and I have in console the warning:

debug: Deprecated: Model.subscribe(socket, null, ...)
debug: (see
debug: Please use instance rooms instead (or raw sails.sockets.*() methods.)

And then:

  • What are the differences between

Answer Source

Question 1

I'd prefer to comment (lack rep...), but have you given the docs a good read?

You can't call .subscribe like User.subscribe(req.socket). It requires a second param records. So your User.subscribe(req.socket, users); should work if users is a list of user model instances.

Question 2

I'm no expert (at all...) with node or sails, but the docs #pubsub subscribes clients to publishCreate events for the model instances. I see no mention of publishUpdate,publishDestory, etc. I think it only watches creation events. .subscribe() takes a list of models (or a model) and subscribes the client to publishAdd, publishDestroy, publishRemove, publishUpdate events (by default) for that list of model instances. You can also specify what contexts you want to subscribe to.

So, it seems you actually want to use instead of .subscribe() if you only want to send the socket publishCreate events. If you need all of them, use something like User.subscribe(req.socket,users,[create,update,destroy,]). If you want to be cool, you can set the autosubscribe property to contain the list of the contexts you care about and just use User.subscribe(req.socket,users) the docs - context.


Recommended from our users: Dynamic Network Monitoring from WhatsUp Gold from IPSwitch. Free Download