Pre-Alpha ActivityPub-related bug reports
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Evan Prodromoureplied to Erin 💽✨ on last edited by
@erincandescent @julian @[email protected] @trwnh @silverpill Standards are about making arbitrary decisions in the pursuit of uniformity.
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Erin 💽✨replied to Evan Prodromou on last edited by@evan @julian @evan @trwnh @silverpill I agree, but... I don't think this has ever been successful in federated social software development except for when forced through market share
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infinite love â´³replied to Evan Prodromou on last edited by
@evan @silverpill @erincandescent @julian why is it bad for caching? it seems like the opposite to me -- reverse-chron means that pages are constantly updating and are almost never consistent! each new item in the collection pushes everything else behind it, and the last item of the page overflows into becoming the first item of the next page. if you did forward-chron, you could freeze "page 1" as soon as it got full, and move onto "page 2".
also, a viewer can easily tell where they left off.
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Evan Prodromoureplied to infinite love â´³ on last edited by
@trwnh @silverpill @erincandescent @julian oh, yes, that's true, if you do "volatile paging" (last 20 pages).
If you have reified pages (item goes in one page and stays there), once the pages are full, they don't change (except for `Remove` activities).
Don't do volatile paging.
If you use reified pages, an add to a reverse-chron collection will typically have changes to `first` and the Collection itself.
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Evan Prodromoureplied to Evan Prodromou on last edited by
@trwnh @silverpill @erincandescent @julian
If you have bidirectional links (`first` and `last`) you can have stable collections with rev-chron or forward-chron. So, fair point.
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infinite love â´³replied to Evan Prodromou on last edited by
@evan @silverpill @erincandescent @julian Yeah, my point is that it seems almost entirely conventional whether to have "reverse" mean first.next.next... or last.prev.prev... -- and I favor the latter approach because it makes more sense imo, no double-inversion ("reverse-reverse chron", anyone?)
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Evan Prodromoureplied to infinite love â´³ on last edited by
@trwnh @silverpill @erincandescent @julian Except for most interfaces, your first page is the current stuff, and you go back in time to find earlier stuff.
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Erin 💽✨replied to infinite love ⴳ on last edited by@trwnh @evan @silverpill @julian personally I don't necessarily think you should do reified pages in most cases; but I do think you should do stable cursors; that is, you can traverse a collection as slowly as you wish and you'll get a coherent view.
Bonus points if the most recent page of the collection has a next link that points to an empty page where newer objects will appear -
infinite love â´³replied to Evan Prodromou on last edited by
@evan @silverpill @erincandescent @julian This is what I meant by "conventional". On a forum thread, you generally read forward. On social media like Twitter, there is a heavy bias toward going reverse. And some interfaces even let you choose ascending or descending order.
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Evan's poll about Activitypub doesn't show on NodeBB instance, why is that?
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There's probably a FEP that needs to exist explaining how polls on Mastodon even work, plus how they should work (it's not what you might expect)
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J julian unpinned this topic on
