Last modified: 2012-06-07 21:30:29 UTC

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Bug 11411 - can't have an n-ary relation composed of an enumerated type
can't have an n-ary relation composed of an enumerated type
Status: RESOLVED FIXED
Product: MediaWiki extensions
Classification: Unclassified
Semantic MediaWiki (Other open bugs)
unspecified
All All
: Normal minor (vote)
: ---
Assigned To: Markus Krötzsch
http://ontoworld.org/wiki/Property:Bug
:
Depends on:
Blocks:
  Show dependency tree / graph
 
Reported: 2007-09-20 20:55 UTC by S Page
Modified: 2012-06-07 21:30 UTC (History)
1 user (show)

See Also:
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Mobile Platform: ---
Assignee Huggle Beta Tester: ---

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Description S Page 2007-09-20 20:55:31 UTC 
In SMW 1.0pre-alpha3 a property can have multiple types.  But if one of those is Enumeration, the property doesn't work.  The factbox always complains "Possible values for this property are not enumerated."

Even if a compound property could find special properties of its component types on its page, how would SMW know the component type to which they apply?  E.g.  Property:Bug might have an enumerated severity and enumerated priority; where would you specify the two separate lists of "allows value".

I suspect similar problems with trying to specify primary units and desired formats of component types of n-ary relations.

For what it's worth Yaron Koren identified other issues with the current design in http://sourceforge.net/mailarchive/message.php?msg_name=55dbda5c0709102237n535a4a36ia0798029197441a7%40mail.gmail.com
Comment 1 Markus Krötzsch 2007-10-03 17:06:57 UTC 
Nary properties will not support all features of normal properties yet. It is planned to revisit earlier design decisions regarding some property settings, and to make naries compatible with the emerging design. Probably SMW1.0 will ship naries as "experimental".
Comment 2 [[kgh]] 2012-06-07 21:30:29 UTC 
We now have datatype Record since SMW 1.5.0 Thus closing this as RESOLVED FIXED.
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