https://bugzilla.wikimedia.org/show_bug.cgi?id=49803
Web browser: ---
Bug ID: 49803
Summary: Calculated Age can become outdated
Product: Wikimedia
Version: wmf-deployment
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: trivial
Priority: Unprioritized
Component: General/Unknown
Assignee: wikibugs-l@lists.wikimedia.org
Reporter: alexei.rude...@gmail.com
Classification: Unclassified
Mobile Platform: ---
Pages about persons where age is calculated automatically are saved in the
cache until the next cache purge or the page change happens. Calculated value
of the age is also saved.
After the date of birth of a person passes the saved age does not change.
Example: Paul McCartney has birthday on 18.06.1942. His wiki page was edited
before 18.06.2013 and his age of 70 was saved in cache (which is correct). Then
after 18.06.2013 no one changed his page or invalidated cache, that's why his
age was 70 while it had to be 71 (which is not correct).
Notes: This can happen for all pages with calculated age. Possible, other
calculated fields are also affected.
Possible solution: invalidate cache on some conditions met. For example,
invalidate the cache of Paul McCartney's page on 18.06 of every year by
settings Expires header.
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