dinsdag 17 december 2019

Thanks @github.com/lootjs, I have seen Hub before, and I thought it did something else. I tried again, hoping that I missed something, but I don't think this is what I need here.

I think the idea of the Hub is that one can have multiple pipelines, with names, and that you can dispatch to those pipelines by name. In my example above, I have one pipeline and want to reuse that one pipeline. That does not match.

Example for how I think Hub works:

function prependFoo($thing, $next) {
    return $next('foo' . $thing);
}

function appendBar($thing, $next) {
    return $next($thing . 'bar');
}

$hub = new Illuminate\Pipeline\Hub();

$hub->defaults(function ($pipeline, $thing) {
    return $pipeline->send($thing)
        ->through(['prependFoo', 'appendBar'])
        ->then(fn($n) => $n);
});

$hub->pipeline('only-foo', function ($pipeline, $thing) {
    return $pipeline->send($thing)
        ->through(['prependFoo'])
        ->then(fn($n) => $n);
});

$hub->pipe('thing'); // "foothingbar"
$hub->pipe('thing', 'only-foo'); // "foothing"

Note that Hub does not it's Container to resolve Pipeline (just news it), and that it gives a new instance of Pipeline every time you call pipe() on it, which is quite the opposite of what I want.

Hub also seems to be a bit forgotten: it is not used by the framework itself, is not documented and does not have tests. It feels like an experiment for Middleware groups that went nowhere? (But that's speculating, probably @taylorotwell knows.)

But most of all: no, I don't think that does what I mean.