Wrong keys of Title::$titleCache as result of Title::newFromText() is not canonical
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	• bzimport
	Apr 16 2013, 12:53 PM

Description

Author: twinchic

Description:
When Title::newFromText() called, $text variable used as key for $titleCache array. But every title can created from many text variants. For example "tEST", "Test" and "TEST" direct to one canonical title key "Test". However result of calling Title::newFromText() will different for this three variants because new Title instance will create for each variant and stored to $titleCache. Property $mDbkeyform will the same.

Continue work with system with this wrong $titleCache state create unexpected behaviour (Article::exists() results for example) when develop complicated extensions.

Version: 1.22.0
Severity: normal
URL: мит
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=36233

Details

Reference: bz47282

Event Timeline

• bzimport raised the priority of this task from to Medium.Nov 22 2014, 1:41 AM

• bzimport added a project: MediaWiki-Parser.

• bzimport set Reference to bz47282.

• bzimport added a subscriber: Unknown Object (MLST).

• bzimport created this task.Apr 16 2013, 12:53 PM

guadalupeocampo01 wrote:

content hidden as private in Bugzilla

(In reply to Sergey Nevmerzhitsky from comment #0)

"tEST", "Test" and "TEST" direct to one canonical title key "Test".

This isn't the case. "tEST" and "TEST" are the same, but "Test" isn't, since titles are case-sensitive except for the first letter.

This cache is for caching the parsing of titles and processing of various rules. One of those rules is first-letter case-sensitivity. So them being cached separately is on purpose as we can't know this ahead of time.

As mentioned, aside from the first character, the other characters are very much case-sensitive. Test and TEST are separate page titles and do not correlate to the same dbkey.

For example, https://en.wikipedia.org/wiki/Gui is a disambiguation page about various places and entities named "Gui". Whereas https://en.wikipedia.org/wiki/GUI is a redirect to Graphical User Interface, as the editors considered that the most notable meaning of the abbreviation (Most others were names, not abbreviations).

Wrong keys of Title::$titleCache as result of Title::newFromText() is not canonicalClosed, DeclinedPublicActions

Description

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Wrong keys of Title::$titleCache as result of Title::newFromText() is not canonical
Closed, DeclinedPublic
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