I'm pretty sure that the item page is not enough by itself. It must be possible to add sitelinks to din, and currently it's impossible. Probably this needs to be done: https://wikitech.wikimedia.org/wiki/Add_a_wiki#Wikidata
Yep, seems to work, although there's a longish lag until the link actually appears, but that's fine.
Will anybody run the script that migrates all the existing classic links to Wikidata?
OK, wait. I'm seeing something weird. Each of the pages edited by Dexbot seems to now have a link to the correct "Wikidata item" in the sidebar but no list of interlanguage links under "Languages" (English interface). Tried purging the page cache (and bypassing my local browser cache) on one of the pages, but it didn't change anything.
See, for example, din:Ɣɔɔc de kɔc në Thudän, which links to d:Q954778, which links back to the Dinka article, but that article doesn't have interlanguage links to the 3 other Wikipedia articles listed in the Wikidata item (de, en, fr).
So has this task not actually been completed?
for some reason, the sites table on dinwiki only had an entry for dinwiki and not any other wiki.
I see dinwiki in the sites table for other wikis. I repopulated the sites table on dinwiki and the interwikis appear to work:
It looks like it will be necessary to purge the cache on most of these pages to get the interlanguage links to show up. This can be done "manually" by visiting each page and appending the string "?action=purge" to the end of the URL and then hitting the Enter key to reload the page (with the new URL).
Alternatively, you can do a "null edit" of each page (edit and "publish changes" without making any changes) — or, of course, you can make a real edit, changing anything on the page.