Model persistence examples?

[cambiata]

It would be great with an example or two how to best deal with model persistence, at least from and to json data.

[kevinresol]

The simplest model would be something like this:

class Persistence<Data> implements Model {
    @:constant var load:()->Promise<Data>;
    @:constant var save:Data->Promise<Noise>;
    @:observable private var revision:Int = 0;
    @:loaded var data:Data = {revision; load();}

    @:transition
    function save(data:Data) {
        return save(data).swap({revision: revision + 1});
        // note: you can also use some local cache mechanism to avoid the reload
    }

    @:transition
    function refresh() {
        return {revision: revision + 1}
    }
}

[cambiata]

Thanks, very helpful!

Here's my take on implementing the whole chain, if anyone's interested: https://gist.github.com/cambiata/0298d909ae151f638cb1be4dbfc60392

[kevinresol]

Closing for now. One day we will move this to the website.