Michael created this task.
Michael added projects: Wikidata, MediaWiki-extensions-WikibaseRepository,
DataValues, wdwb-tech, Wikidata-Campsite (Wikidata-Campsite-Iteration-∞).
Restricted Application added a subscriber: Aklapper.
TASK DESCRIPTION
While we should never have invalid data in our database, we should still
degrade somewhat gracefully if we do and provide something syntactically valid
to the user if they request RDF or ttl data.
So if we have for example invalid data like the following (notice the strange
precision):
{
"P625": [
{
"mainsnak": {
"snaktype": "value",
"property": "P625",
"datavalue": {
"value": {
"latitude": -90,
"longitude": 0,
"altitude": null,
"precision": 146706019195900,
"globe": "http://www.wikidata.org/entity/Q308";
},
"type": "globecoordinate",
"error": "$precision needs to be between -360 and 360"
},
"datatype": "globe-coordinate"
},
"type": "statement",
"id": "Q3629997$469068A1-32BD-4D93-AF94-150EEC63BD2D",
"rank": "normal",
"references": [...]
}
],
}
Then the ttl (and RDF) could look somewhat like this:
wd:Q3629997 # no wdt:P625;
p:P625 wds:Q3629997-469068A1-32BD-4D93-AF94-150EEC63BD2D.
wds:Q3629997-469068A1-32BD-4D93-AF94-150EEC63BD2D # no ps:P625;
psv:P625 _:someBlankNode.
_:someBlankNode rdf:type wikibase:Error; # look for more appropriate class
wikibase:errorMessage "$precision needs…". # TODO needed?
> that way
>
> - queries selecting `wdt:P625 ?value` silently skip the value
> - queries counting `p:P625 []` count the statement
> - queries looking at `p:P625/psv:P625 [ wikibase:geoLongitude ?lon;
wikibase:geoLatitude ?lat ]` skip the value
TASK DETAIL
https://phabricator.wikimedia.org/T285131
EMAIL PREFERENCES
https://phabricator.wikimedia.org/settings/panel/emailpreferences/
To: Michael
Cc: Aklapper, Michael, Invadibot, maantietaja, Akuckartz, Iflorez, alaa_wmde,
Nandana, lucamauri, Lahi, Gq86, GoranSMilovanovic, QZanden, LawExplorer,
_jensen, rosalieper, Scott_WUaS, Jonas, Wikidata-bugs, aude, Lydia_Pintscher,
Addshore, Mbch331
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