@julian@community.nodebb.org Mbin uses all 3 fields for what its worth :D
this post was submitted on 13 Mar 2025
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@bentigorlich@gehirneimer.de ah that's good to know.
Perhaps the solution is to use audience if explicitly defined, then fall back to to/cc otherwise.
@julian@community.nodebb.org right now we just collect all links in these 3 fields and select the first magazine/community/group from the db having this url as their public url
@bentigorlich@gehirneimer.de okay :+1:
Apologies for not mentioning you up top. I did not know you were the maintainer for mbin, but now I do! :smile:
@julian@community.nodebb.org No worries :D Been reading silently for a while (on and off)
@julian@community.nodebb.org Interesting, I though that the audience field was the way it should be done and to/cc fields were just for backwards compat :D
I asked in that issue whether Lemmy finds community via to/cc (it does). Does PieFed do the same?
Yes - PieFed does the same. It looks in 'audience', then 'cc', then 'to'. It has to, to support all the platforms that haven't adopted 'audience. It's a convenient field, but PieFed won't be affected if Lemmy goes through with removing it.
Would this also open up the possibility of a topic/context being part of multiple audiences/communities?
Not at present. If you do something like cc: [community1, community2] it will only go to community1 (on both Lemmy and PieFed). There's so many activities that are effectively duplicates, both in normal operation and when platforms are bugged (both Lemmy and Mastodon have gone through phases of sending the same activity multiple times), that you need a way to make sure you're only processing one. On PieFed, this is done by having a UNIQUE constraint of the 'ap_id' column of the Post table (the ap_id of your post is https://community.nodebb.org/post/103806), so it means you can't have the same post in more than one community.