New constraint type "Unused"
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	Bugreporter
	Jan 19 2019, 6:02 PM

Description

There should be a new constraint type "Unused". All statements (within specific scope) using "unused" properties will be constraint violation.

Use cases:

Properties that should not be used for now (e.g. https://www.wikidata.org/wiki/Property:P5137, before senses are deployed)
Properties that are deprecated (with T214243: new constraint level for deprecated usage)
Properties that should be only used by a small number of items (which are flagged as exceptions)
Sandbox properties.

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		Status	Subtype	Assigned	Task
		Open		None	T213803 [Tracking] Request for new constraint types
		Open		None	T214244 New constraint type "Unused"

Event Timeline

Bugreporter created this task.Jan 19 2019, 6:02 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptJan 19 2019, 6:02 PM

@Bugreporter, do you think we could get the same with the already existing "property scope" constraint by not using any qualifier to specify a scope or by specifying the scope as "no value"?

why not just no value for them?

In https://www.wikidata.org/wiki/Wikidata:Property_proposal/replacement_property, another use case is provided.

matej_suchanek updated the task description. (Show Details)Feb 15 2019, 11:13 AM

Can you please clarify if/how this is different from T214243? And why is using "property scope: no value" not an option?

Lydia_Pintscher mentioned this in T214243: new constraint level for deprecated usage.Jun 5 2019, 8:35 AM

I think it can be solved with existing property constraints, e.g. allowed entity types constraint (Q52004125)

Esc3300 moved this task from incoming to incoming (new or improved constraint types) on the Wikibase-Quality-Constraints board.Jun 15 2021, 12:36 PM