Luckily, feeds do tend to include publication dates.) (Note: when publication date isnât specified in the feed, then NetNewsWire uses the arrival date as the publication date, since it will usually be pretty close. This makes the limit understandable: you can see the dates, after all, that it uses for its calculation. So if we have a time-based limit thatâs triggered by unseen metadata (arrival date) â and there is visible metadata (publication date) of the exact same type and that seems like itâs directly relevant to age â then I think we have to use the visible date, the publication date. Itâs not otherwise an interesting piece of information, where publication date is interesting to users. If it arrived more than n days ago, then it should be deleted, because that means the user has had it for more than n days.īut thereâs a problem with that: arrival date is never shown in the user interface. You might think, naturally, that NetNewsWire should use arrival date when deciding whether or not to delete an article. When it reads a feed for the first time, the arrival date is that moment for each item, while the publication date could be anything. Not always, though â not, for instance, when adding a feed. Most of the time, arrival date and publication date will be pretty close. Arrival date: the date NetNewsWire first saw the article (guaranteed to exist, since itâs NetNewsWire-generated).
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