Community Wishlist Survey 2019/Wikidata/Automatically add inverse properties

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Random proposal◄ Wikidata  The survey has concluded. Here are the results!

Automatically add inverse properties

  • Problem: It takes a long time to add inverse statements, father/mother -> child; owner of-> owned by; Spouse/Partner (including qualifiers start time, place of marriage, etc)
  • Who would benefit: Everyone editing
  • Proposed solution: Possibility to automatically add inverse statements, including qualifiers.
  • More comments:
  • Phabricator tickets:
  • Proposer: Germartin1 (talk) 16:43, 9 November 2018 (UTC)Reply[reply]


  • At the moment we have d:User:Frettie/consistency check add.js, which allows to add inverse properties manually very quickly; of course doing it automatically would be great. --Epìdosis 14:47, 11 November 2018 (UTC)Reply[reply]
  • I actually wonder why inverse properties exist in the first place. It seems like they exist so that the inverse can be referenced on other wikis. Perhaps it would be better to make it easy to reference "the inverse" in a sidebar on Wikipedia instead of having to actually duplicate the data in the database. For instance, if there was a way to say that I want the items, where the "father" is this page, it would give me a list of the page's children. That seems like it would be way better than trying to ensure that the inverse statements are correct everywhere. U+1F360 (talk) 23:22, 14 November 2018 (UTC)Reply[reply]
  • @Germartin1: How would this handle qualifiers and references, and statements with the same value but different qualifiers (for e.g. adjacent stations, offices held)? I like this proposal (and added my support vote) but I think these are things that would need to be addressed in the implementation. Jc86035 (1) (talk) 08:11, 20 November 2018 (UTC)Reply[reply]
  • I found task T209559 which seems to cover what I mentioned above. --U+1F360 (talk) 04:22, 23 November 2018 (UTC)Reply[reply]
  • @Germartin1: I use Property:P1545 as qualifier in Property:P26. And i don't want to copy the Property:P1545 value! Manu1400 (talk) 04:15, 25 November 2018 (UTC)Reply[reply]