Last modified: 2009-11-03 09:11:15 UTC
In SMW you can state a property as subproperty of a more general property. E.g. you can state for Property:HasProjectLeader: [[subproperty of::Property:HasResponsiblePerson]]. Now assume you want to query for all things having a responsible person and print out the responsible person: {{#ask: [[HasResponsiblePerson::+]] | ?HasResponsiblePerson}} You also get pages using more specialized properties (e.g. HasProjectLeader); however the printout does not work if a more specialized property is used.
Another example would be: {{#ask:[[Category:Task]] |?Assignee.Firstname}} The printout of a chained property value might be e.g. useful, when ?Assignee does not contain a meaningful name, but e.g. a person ID.
aaah ignore my last comment, it was meant for the enhancement of printing out chained property values (see https://bugzilla.wikimedia.org/show_bug.cgi?id=21232).
*** This bug has been marked as a duplicate of bug 12822 ***
