Change 502516 had a related patch set uploaded (by Matthias Mullie; owner: Matthias Mullie):
[mediawiki/extensions/WikibaseMediaInfo@master] Handle statements with unsupported data types

https://gerrit.wikimedia.org/r/502516

Change 502516 merged by jenkins-bot:
[mediawiki/extensions/WikibaseMediaInfo@master] Handle statements with unsupported data types

https://gerrit.wikimedia.org/r/502516

This seems to be working fine on beta, @matthiasmullie I couldn't figure out how to test on test-commons though - couldn't get the wbsetclaim correct in the Api Sandbox. What is an example claim JSON I should submit to get into this state on some file in test commons?

Below is an example call for adding a claim with 'globecoordinate' datatype:

(new mw.Api()).postWithEditToken({
	action: 'wbsetclaim',
	format: 'json',
        claim: JSON.stringify({"type":"statement","mainsnak":{"snaktype":"value","property":"P625","datavalue":{"type":"globecoordinate","value":{"latitude":36.025155,"longitude":-113.788809,"globe":"http://www.wikidata.org/entity/Q2","precision":0.000001}}},"id":"M23$f49ddd73-4bb5-5e42-f132-6819d56773f4","rank":"normal"})
});

Let's break down that 'claim' thing a bit:

• "property":"P625": P625 is the id of the wikidata property that expects a globecoordinate value (I'm not aware of any convenient way to find properties by supported datatype, so I just try my luck searching for a property name that I'd expect to have such datatype, like 'coordinate')
• "id":"M64624$f49ddd72-4bb4-5e41-f131-6819d56773f3"
  • M23 is the MediaInfo id for this page ('M' + page id). Can easily be fetched by executing this in console while on the page: 'M' + mw.config.get( 'wgArticleId');
  • $: delimiter, must be there to separate entity id from unique key
  • f49ddd72-4bb4-5e41-f131-6819d56773f3: just a unique key - this can be anything, as long as it's unique
• "datavalue":{"type":"globecoordinate","value":{"latitude":36.025155,"longitude":-113.788809,"globe":"http://www.wikidata.org/entity/Q2","precision":0.000001}}: the value - this one's a little annoying to craft by hand, since this varies wildly per datatype. I usually just go to one of the wikidata items on my local wiki (or a test/labs wikidata instance) and add a value for a certain datatype, inspect the request, and copy & adjust the value it submitted - it's faster than combing through the wikidata code and figuring out what that datatype looks like :)

So:

• browse to the file you want to add such statement to
• copy the above snippet into your console
• make sure to substitute M23 for the MediaInfo id of the page you're on ('M' + mw.config.get( 'wgArticleId');)
• make sure to change the hash to something unique
• execute that snipper, it'll submit an API call
• once the API call has completed, refresh the page
• unsupported statement is there, you should see it on the page and have a decent enough interface (that allows you to delete it)

tested on beta

Tested on test-commons- works there as well. @matthiasmullie your instructions were what I needed i was formatting the datavalue wrong