Any way to be informed when registered_emails changes?

[steph643]

I keep, in Meteor.users, an officialContactEmail field which I need to update whenever registered_emails changes. How can I do that?

[splendido]

I'd say with an observeChanges

[steph643]

I would prefer to avoid a client-side observer on (hopefully) the biggest collection of my application :-) I will rather try to add my own Accounts.onLogin hook. Do you know how to be sure my hook gets called after yours?

[splendido]

...it might also be that you don't publish the whole users collection to your client ;-)

Kidding apart, package code is loaded before the top level code of your app, so any onLogin hook you set up should come after the ones set by packages.

[steph643]

It works, thanks.

To people who might need this in the future, notice that there is a minor inconvenience when adding your on onLogin hook: when a user logs-in for the first time, the info.user argument does not contain the registered_emails field. So you will need to load it like this:

    Accounts.onLogin(function (info) {
        // Get the user (if login was successful)
        var user = info.user;
        if (! user)
            return;

        // Get the registered_emails that the meteor-accounts-emails-field package has just set
        user = Meteor.users.findOne(user._id, { fields: { registered_emails: 1, ... } });
        check(user.registered_emails, [Object]);

        ...
    });

[splendido]

oh, right!

this is actually needed all the time, since modification to the info object are not propagated through different onLogin callbacks!

I also had to do the same for accounts-meld: see these lines

[splendido]

Could you prepare a simple PR to add something about this into the README?

[steph643]

Ok, I will have a look.

[splendido]

Done, tnx!