Property talk:P3026

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exceptions to open days (P3025), usually special dates

Data type	Item
Usage notes	Can be used as a qualifier with P3025 or as a standalone property.
Example	British Museum (Q6373) → December 24 (Q2705)
<complementary property>	open days (P3025)
See also	open period from (P3027), open period to (P3028), opening time (P8626), closing time (P8627)
Lists	Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Database reports/Constraint violations/P3026
Proposal discussion	Proposal discussion
Current uses	Total 1,136 Main statement 749 65.9% of uses Qualifier 387 34.1% of uses
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Value type “point in time with respect to recurrent timeframe (Q14795564), holiday (Q1445650), day of the week (Q41825), public holiday (Q1197685), range of days of the week (Q99731370)”: This property should use items as value that contain property “instance of (P31), subclass of (P279)”. On these, the value for instance of (P31), subclass of (P279) should be an item that uses subclass of (P279) with value point in time with respect to recurrent timeframe (Q14795564), holiday (Q1445650), day of the week (Q41825), public holiday (Q1197685), range of days of the week (Q99731370) (or a subclass thereof). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P3026#Value type Q14795564, Q1445650, Q41825, Q1197685, Q99731370, SPARQL

Scope is as qualifier (Q54828449), as main value (Q54828448): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P3026#Scope, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P3026#Entity types

This property is being used by: eu:Txantiloi:Eraikin infotaula automatikoa, eu:Txantiloi:Eraikin infotaula Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Qualifier?

Pinging folks who participated in the discussion of the property proposal: @Jura1, Lymantria, Pigsonthewing, ArthurPSmith, K7L: this property was intended as a qualifier for open days (P3025) on the assumption that open days (P3025) will always accept neat, single values like in the example of British Museum (Q6373). However, opening hours are usually more complex than that, as can be seen on SOJO (Q28804296), which currently indicates a constraint violation because of this. I'm wondering if we can remove the qualifier constraint and allow this to be used as a standalone property. What do you think? NMaia (talk) 03:40, 2 May 2019 (UTC)

Relaxing the constraint is ok with me. ArthurPSmith (talk) 12:31, 2 May 2019 (UTC)