That's fantastic news! :) Just curious... when statements linking to other properties has been implemented, will that include the ability to start defining a class tree for the properties? It would be amazing if you could one day run queries like "all items with any subclass of location set to Berlin", getting all people born in there, items located there etc with a single simple instruction.
Cheers,
Nav
On 3 December 2014 at 21:34, Magnus Manske magnusmanske@googlemail.com wrote:
Hooooooooray! :-)
On Wed, Dec 3, 2014 at 9:18 PM, Lydia Pintscher < lydia.pintscher@wikimedia.de> wrote:
Hey folks :)
We just enabled statements on properties. You can for example use this to:
- describe mappings to other projects' vocabularies
- indicate constraints for the usage of this property (currently
stored in templates on the talk page of the property)
- store information about where this property is used in other
projects to make sure they can be notified when major changes are made to how the property is used
- provide links to extensive documentation about and showcases for the
usage of this property
- store patterns for how an identifier should be expanded to form a
proper URL
- ...
Some notes:
- You can't yet make statements linking to other properties to for
example indicate that property X is the inverse of property Y. We are adding a new datatype for that. It'll come soon. The ticket for that is https://phabricator.wikimedia.org/T75302
- Constraint violation reports currently don't take these statements
into account. They will continue to use the templates on the property's talk page. A team of students is currently working on overhauling the whole constraint system. It'll take them a while still though.
Unrelated but also important for you to know: If a page is deleted on Wikipedia/Commons/... that has a sitelink in an item on Wikidata that link will be removed automatically now.
Cheers Lydia
-- Lydia Pintscher - http://about.me/lydia.pintscher Product Manager for Wikidata
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