Last modified: 2012-11-01 18:28:56 UTC

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Bug 37038 - issue with the way special type Date treats pre-1582 years


Summary:	issue with the way special type Date treats pre-1582 years

Status:	RESOLVED FIXED

Product:	MediaWiki extensions
Classification:	Unclassified
Component:	Semantic MediaWiki (Other open bugs)
Version:	unspecified
Hardware:	All Linux

Importance:	Normal normal (vote)
Target Milestone:	---
Assigned To:	Nobody - You can work on this!

URL:
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Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2012-05-23 07:12 UTC by contrafibularity
Modified:	2012-11-01 18:28 UTC (History)
CC List:	3 users (show)

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

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Description contrafibularity 2012-05-23 07:12:57 UTC

There appears to be an issue with the way that special Type:Date handles pre-1582 (pre-Gregorian) dates. For instance, when the value specified is "1500", SMW somehow translates this as "1499". Perhaps 1500 gets interpreted as 1 January minus one day = 31 December, 1499? 

Btw, this is not a new issue. In fact, I remember the exact same problem occurring on a different system about a year ago. 

Specifications: MW 1.17, MySQL 5.5.23, Php 5.3.10, SMW 1.7.1

Comment 1 contrafibularity 2012-05-23 08:21:20 UTC

Update. I just got a different (related?) error: some of the values are instead set to 1 January 1970, for no apparent reason.

Comment 2 contrafibularity 2012-06-07 18:49:55 UTC

You can probably safely ignore the second comment, which does appear to be unrelated. 

I've looked at some 'SMWs of the month' and noticed that Familypedia is having the same issue. Is it perhaps a PHP problem?

Comment 3 contrafibularity 2012-06-26 09:31:27 UTC

Could it be that "1500" is shown as "1499" because it is interpreted as "1 January 1500" and the year didn't necessarily start on 1 January?

Comment 4 Markus Krötzsch 2012-11-01 18:28:56 UTC

The problem should be fixed in the current development version with change https://gerrit.wikimedia.org/r/#/c/28666/ See also the comments for Bug 41126.

Wikimedia Bugzilla is closed!

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