http://www.mediawiki.org/wiki/Special:Code/MediaWiki/67372

Revision: 67372
Author:   liangent
Date:     2010-06-05 02:12:01 +0000 (Sat, 05 Jun 2010)

Log Message:
-----------
Initial code

Added Paths:
-----------
    trunk/extensions/CategoryMultisort/COPYING
    trunk/extensions/CategoryMultisort/CategoryMultisort.class.php
    trunk/extensions/CategoryMultisort/CategoryMultisort.hooks.php
    trunk/extensions/CategoryMultisort/CategoryMultisort.i18n.php
    trunk/extensions/CategoryMultisort/CategoryMultisort.php
    trunk/extensions/CategoryMultisort/README
    trunk/extensions/CategoryMultisort/tables.mysql.sql
    trunk/extensions/CategoryMultisort/tables.postgres.sql

Added: trunk/extensions/CategoryMultisort/COPYING
===================================================================
--- trunk/extensions/CategoryMultisort/COPYING                          (rev 0)
+++ trunk/extensions/CategoryMultisort/COPYING  2010-06-05 02:12:01 UTC (rev 
67372)
@@ -0,0 +1,340 @@
+                   GNU GENERAL PUBLIC LICENSE
+                      Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                           Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                   GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
+    machine-readable copy of the corresponding source code, to be
+    distributed under the terms of Sections 1 and 2 above on a medium
+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable.  However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+                           NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+                    END OF TERMS AND CONDITIONS
+
+           How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.

Added: trunk/extensions/CategoryMultisort/CategoryMultisort.class.php
===================================================================
--- trunk/extensions/CategoryMultisort/CategoryMultisort.class.php              
                (rev 0)
+++ trunk/extensions/CategoryMultisort/CategoryMultisort.class.php      
2010-06-05 02:12:01 UTC (rev 67372)
@@ -0,0 +1,102 @@
+<?php
+
+if ( !defined( 'MEDIAWIKI' ) ) {
+       die();
+}
+
+class CategoryMultisortViewer extends CategoryViewer {
+
+       function __construct( $title, $skn, $from = '', $until = '' ) {
+               global $wgCategoryMultisortSortkeyNames;
+               parent::__construct( $title, $from, $until );
+               $this->sortkeyName = $skn;
+               $this->sortkeySettings = $wgCategoryMultisortSortkeyNames[$skn];
+       }
+       
+       function doCategoryQuery() {
+               $dbr = wfGetDB( DB_SLAVE, 'category' );
+               if ( $this->from != '' ) {
+                       $pageCondition = 'clms_sortkey >= ' . $dbr->addQuotes( 
$this->from );
+                       $this->flip = false;
+               } elseif ( $this->until != '' ) {
+                       $pageCondition = 'clms_sortkey < ' . $dbr->addQuotes( 
$this->until );
+                       $this->flip = true;
+               } else {
+                       $pageCondition = '1 = 1';
+                       $this->flip = false;
+               }
+
+               $res = $dbr->select(
+                       array( 'page', 'categorylinks_multisort', 'category' ),
+                       array( 'page_title', 'page_namespace', 'page_len', 
'page_is_redirect', 'clms_sortkey',
+                               'cat_id', 'cat_title', 'cat_subcats', 
'cat_pages', 'cat_files' ),
+                       # Doesn't support sortkey_name aliases
+                       array( $pageCondition, 'clms_to' => 
$this->title->getDBkey(), 'clms_sortkey_name' => $this->sortkeyName ),
+                       __METHOD__,
+                       array( 'ORDER BY' => $this->flip ? 'clms_sortkey DESC' 
: 'clms_sortkey',
+                               'USE INDEX' => array( 'categorylinks_multisort' 
=> 'clms_sortkey' ),
+                               'LIMIT'    => $this->limit + 1 ),
+                       array( 'categorylinks_multisort'  => array( 'INNER 
JOIN', 'clms_from = page_id' ),
+                               'category' => array( 'LEFT JOIN', 'cat_title = 
page_title AND page_namespace = ' . NS_CATEGORY ) )
+               );
+
+               $count = 0;
+               $this->nextPage = null;
+
+               while ( $x = $dbr->fetchObject ( $res ) ) {
+                       if ( ++$count > $this->limit ) {
+                               // We've reached the one extra which shows that 
there are
+                               // additional pages to be had. Stop here...
+                               $this->nextPage = $x->clms_sortkey;
+                               break;
+                       }
+
+                       $title = Title::makeTitle( $x->page_namespace, 
$x->page_title );
+
+                       if ( $title->getNamespace() == NS_CATEGORY ) {
+                               $cat = Category::newFromRow( $x, $title );
+                               $this->addSubcategoryObject( $cat, 
$x->clms_sortkey, $x->page_len );
+                       } elseif ( $this->showGallery && $title->getNamespace() 
== NS_FILE ) {
+                               $this->addImage( $title, $x->clms_sortkey, 
$x->page_len, $x->page_is_redirect );
+                       } else {
+                               $this->addPage( $title, $x->clms_sortkey, 
$x->page_len, $x->page_is_redirect );
+                       }
+               }
+       }
+       
+       function getSubcategorySortChar( $title, $sortkey ) {
+               global $wgContLang;
+               
+               if ( !array_key_exists( 'firstChar', $this->sortkeySettings ) 
|| $this->sortkeySettings['firstChar'] ) {
+                       $sortkey = $wgContLang->firstChar( $sortkey );
+               }
+
+               return $wgContLang->convert( $sortkey );
+       }
+       
+       function addPage( $title, $sortkey, $pageLength, $isRedirect = false ) {
+               global $wgContLang;
+               $this->articles[] = $isRedirect
+                       ? '<span class="redirect-in-category">' .
+                               $this->getSkin()->link(
+                                       $title,
+                                       null,
+                                       array(),
+                                       array(),
+                                       array( 'known', 'noclasses' )
+                               ) . '</span>'
+                       : $this->getSkin()->makeSizeLinkObj( $pageLength, 
$title );
+               
+               if ( !array_key_exists( 'firstChar', $this->sortkeySettings ) 
|| $this->sortkeySettings['firstChar'] ) {
+                       $sortkey = $wgContLang->firstChar( $sortkey );
+               }
+               
+               $this->articles_start_char[] = $wgContLang->convert( $sortkey );
+       }
+       
+       function pagingLinks( $title, $first, $last, $limit, $query = array() ) 
{
+               return parent::pagingLinks( $title, $first, $last, $limit, 
array_merge( $query, array(
+                       'sortkey' => $this->sortkeyName,
+               ) ) );
+       }
+}

Added: trunk/extensions/CategoryMultisort/CategoryMultisort.hooks.php
===================================================================
--- trunk/extensions/CategoryMultisort/CategoryMultisort.hooks.php              
                (rev 0)
+++ trunk/extensions/CategoryMultisort/CategoryMultisort.hooks.php      
2010-06-05 02:12:01 UTC (rev 67372)
@@ -0,0 +1,320 @@
+<?php
+
+if ( !defined( 'MEDIAWIKI' ) ) {
+       die();
+}
+
+class CategoryMultisortHooks {
+
+       function __construct() {
+               global $wgHooks;
+               
+               foreach ( array(
+                       'LoadExtensionSchemaUpdates',
+                       'ParserFirstCallInit',
+                       'LanguageGetMagic',
+                       'ParserClearState',
+                       'ParserBeforeTidy',
+                       'LinksUpdate',
+                       'CategoryPageView',
+               ) as $hook ) {
+                       $wgHooks[$hook][] = $this;
+               }
+       }
+
+       function onLoadExtensionSchemaUpdates() {
+               global $wgExtNewTables, $wgDBtype;
+               
+               $sql = dirname( __FILE__ ) . "/tables.$wgDBtype.sql";
+               if ( file_exists( $sql ) ) {
+                       $wgExtNewTables[] = array( 'categorylinks_multisort', 
$sql );
+               }
+               
+               return true;
+       }
+       
+       function onParserFirstCallInit( $parser ) {
+               $parser->setFunctionHook(
+                       'CategoryMultisort',
+                       array( $this, 'parserCategoryMultisort' )
+               );
+               $parser->setFunctionHook(
+                       'CategoryDefaultMultisort',
+                       array( $this, 'parserCategoryDefaultMultisort' )
+               );
+               return true;
+       }
+       
+       function onLanguageGetMagic( &$magicWords, $langCode ) {
+               $magicWords['CategoryMultisort'] = array( 0, 
'CategoryMultisort' );
+               $magicWords['CategoryDefaultMultisort'] = array( 0, 
'CategoryDefaultMultisort' );
+               return true;
+       }
+       
+       function onParserClearState( $parser ) {
+               $parser->getOutput()->mCategoryMultisorts = array();
+               $parser->getOutput()->mCategoryDefaultMultisorts = array();
+               return true;
+       }
+       
+       function onParserBeforeTidy( $parser, $text ) {
+               $categoryMultisorts = 
&$parser->getOutput()->mCategoryMultisorts;
+               $categoryMultisorts = array_intersect_key( $categoryMultisorts, 
$parser->getOutput()->getCategories() );
+               $categoryDefaultMultisorts = 
$parser->getOutput()->mCategoryDefaultMultisorts;
+               foreach ( $parser->getOutput()->getCategories() as $cat => $sk 
) {
+                       if ( !array_key_exists( $cat, $categoryMultisorts ) ) {
+                               $categoryMultisorts[$cat] = array();
+                       }
+                       foreach ( $categoryDefaultMultisorts as $dskn => $dskv 
) {
+                               if ( !array_key_exists( $dskn, 
$categoryMultisorts[$cat] ) ) {
+                                       $categoryMultisorts[$cat][$dskn] = 
$dskv;
+                               }
+                       }
+                       wfRunHooks( 'CategoryMultisortSortkeys', array( 
$parser, $cat, &$categoryMultisorts[$cat] ) );
+               }
+               return true;
+       }
+       
+       function onLinksUpdate( $linksUpdate ) {
+               global $wgUseDumbLinkUpdate;
+               
+               $categoryMultisorts = 
$linksUpdate->mParserOutput->mCategoryMultisorts;
+               
+               $invalidates = array();
+               
+               $existing = $this->onLinksUpdate_getExistingCategoryMultisorts( 
$linksUpdate );
+               
+               if ( $wgUseDumbLinkUpdate ) {
+                       $invalidates = array_merge( $invalidates, array_keys( 
$existing ) );
+                       $insertions = 
$this->onLinksUpdate_getCategoryMultisortInsertions( $linksUpdate, 
$categoryMultisorts, $invalidates );
+                       $linksUpdate->dumbTableUpdate( 
'categorylinks_multisort', $insertions, 'clms_from' );
+               } else {
+                       $categoryDeletes = 
$this->onLinksUpdate_getCategoryMultisortDeletions( $categoryMultisorts, 
$invalidates, $existing );
+                       $categoryInserts = 
$this->onLinksUpdate_getCategoryMultisortInsertions( $linksUpdate, 
$categoryMultisorts, $invalidates, $existing );
+                       
+                       # incrTableUpdate
+                       $to = array();
+                       foreach ( $categoryDeletes as $cat => $sk ) {
+                               foreach ( $sk as $skn => $skv ) {
+                                       $to[] = $linksUpdate->mDb->makeList( 
array(
+                                               'clms_to' => $cat,
+                                               'clms_sortkey_name' => $skn,
+                                       ), LIST_AND );
+                               }
+                       }
+                       if ( count( $to ) ) {
+                               $where = array( 'clms_from' => 
$linksUpdate->mId );
+                               $where[] = $linksUpdate->mDb->makeList( $to, 
LIST_OR );
+                               $linksUpdate->mDb->delete( 
'categorylinks_multisort' , $where, __METHOD__ );
+                       }
+                       
+                       if ( count( $categoryInserts ) ) {
+                               $linksUpdate->mDb->insert( 
'categorylinks_multisort', $categoryInserts, __METHOD__, 'IGNORE' );
+                       }
+               }
+               
+               # No need to update count. It will be done in LinksUpdate.php.
+               # This affects only its associated information in categories, 
not whether it's in them.
+
+               $linksUpdate->invalidatePages( NS_CATEGORY, array_unique( 
$invalidates ) );
+
+               return true;
+       }
+       
+       function onLinksUpdate_getExistingCategoryMultisorts( $linksUpdate ) {
+               $res = $linksUpdate->mDb->select( 'categorylinks_multisort',
+                       array( 'clms_to', 'clms_sortkey_name', 'clms_sortkey' ),
+                       array( 'clms_from' => $linksUpdate->mId ), __METHOD__, 
$linksUpdate->mOptions );
+               $arr = array();
+               while ( $row = $linksUpdate->mDb->fetchObject( $res ) ) {
+                       $arr[$row->clms_to][$row->clms_sortkey_name] = 
$row->clms_sortkey;
+               }
+               $linksUpdate->mDb->freeResult( $res );
+               return $arr;
+       }
+               
+       function onLinksUpdate_getCategoryMultisortInsertions( $linksUpdate, 
&$categoryMultisorts, &$invalidates, $existing = array() ) {
+               $arr = array();
+               
+               foreach ( $categoryMultisorts as $cat => $sk ) {
+                       if ( !array_key_exists( $cat, $existing ) ) {
+                               $invalidates[] = $cat;
+                               foreach ( $sk as $skn => $skv ) {
+                                       
$this->onLinksUpdate_getCategoryMultisortInsertions_addCategoryInsertion( 
$linksUpdate, $arr, $cat, $skn, $skv );
+                               }
+                       } else {
+                               $exsk = $existing[$cat];
+                               foreach ( $sk as $skn => $skv ) {
+                                       if ( !array_key_exists( $skn, $exsk ) 
|| $exsk[$skn] != $skv ) {
+                                               $invalidates[] = $cat;
+                                               
$this->onLinksUpdate_getCategoryMultisortInsertions_addCategoryInsertion( 
$linksUpdate, $arr, $cat, $skn, $skv );
+                                       }
+                               }
+                       }
+               }
+               
+               return $arr;
+       }
+       
+       function 
onLinksUpdate_getCategoryMultisortInsertions_addCategoryInsertion( 
$linksUpdate, &$arr, $cat, $skn, $skv ) {
+               global $wgContLang;
+               
+               $nt = Title::makeTitleSafe( NS_CATEGORY, $cat );
+               $wgContLang->findVariantLink( $cat, $nt, true );
+               $arr[] = array(
+                       'clms_from'         => $linksUpdate->mId,
+                       'clms_to'           => $cat,
+                       'clms_sortkey_name' => $skn,
+                       'clms_sortkey'      => $skv,
+               );
+       }
+       
+       function onLinksUpdate_getCategoryMultisortDeletions( 
&$categoryMultisorts, &$invalidates, $existing ) {
+               $arr = array();
+               foreach ( $existing as $cat => $sk ) {
+                       if ( !array_key_exists( $cat, $categoryMultisorts ) ) {
+                               $invalidates[] = $cat;
+                               $arr[$cat] = $sk;
+                       } else {
+                               $cmsk = $categoryMultisorts[$cat];
+                               foreach ( $sk as $skn => $skv ) {
+                                       if ( !array_key_exists( $skn, $cmsk ) 
|| $cmsk[$skn] != $skv ) {
+                                               $invalidates[] = $cat;
+                                               $arr[$cat][$skn] = $skv;
+                                       }
+                               }
+                       }
+               }
+               return $arr;
+       }
+       
+       function parserCategoryMultisort() {
+               $args = func_get_args();
+               $parser = array_shift( $args );
+               $category = Title::newFromText( array_shift( $args ), 
NS_CATEGORY );
+               if ( is_null( $category ) ) {
+                       return '';
+               }
+               $category = $category->getDBkey();
+               $categoryMultisorts = 
&$parser->getOutput()->mCategoryMultisorts;
+               
+               foreach ( $this->parseMultisortArgs( $args ) as $skn => $skv ) {
+                       $categoryMultisorts[$category][$skn] = $skv;
+               }
+               
+               return '';
+       }
+       
+       function parserCategoryDefaultMultisort() {
+               $args = func_get_args();
+               $parser = array_shift( $args );
+               $categoryDefaultMultisorts = 
&$parser->getOutput()->mCategoryDefaultMultisorts;
+                               
+               foreach ( $this->parseMultisortArgs( $args ) as $skn => $skv ) {
+                       $categoryDefaultMultisorts[$skn] = $skv;
+               }
+               
+               return '';
+       }
+       
+       function onCategoryPageView( $categoryArticle ) {
+               global $wgRequest, $wgOut, $wgUser, 
$wgCategoryMultisortSortkeyNames;
+               
+               wfLoadExtensionMessages( 'CategoryMultisort' );
+               
+               $title = $categoryArticle->getTitle();
+               $skn = $wgRequest->getText( 'sortkey' );
+               
+               if ( $title->getNamespace() != NS_CATEGORY ) {
+                       return true;
+               } else {
+                       $wgOut->addHTML( 
$this->onCategoryPageView_buildSortkeySelectForm( $skn ) );
+                       
+                       if ( !$skn || !array_key_exists( $skn, 
$wgCategoryMultisortSortkeyNames ) ) {
+                               return true;
+                       } else {
+                               $article = new Article( $title );
+                               $article->view();
+                       
+                               $from = $wgRequest->getVal( 'from' );
+                               $until = $wgRequest->getVal( 'until' );
+                               $viewer = new CategoryMultisortViewer( $title, 
$skn, $from, $until );
+                               $wgOut->addHTML( $viewer->getHTML() );
+                               
+                               return false;
+                       }
+               }
+       }
+       
+       function onCategoryPageView_buildSortkeySelectForm( $current = '' ) {
+               global $wgCategoryMultisortSortkeyNames, $wgArticle, $wgScript;
+               
+               $html = '';
+               
+               if ( count( $wgCategoryMultisortSortkeyNames ) ) {
+                       wfLoadExtensionMessages( 'CategoryMultisort' );
+                       $html = Html::element( 'option',
+                               array_merge( array( 'value' => '' ), ( $current 
== '' ? array( 'selected' ) : array() ) ),
+                               wfMsgNoTrans( 
'categorymultisort-defaultsortkey-name' )
+                       );
+                       
+                       foreach ( $wgCategoryMultisortSortkeyNames as $skn => 
$sks ) {
+                               $html .= Html::element( 'option',
+                                       array_merge( array( 'value' => $skn ), 
( $current == $skn ? array( 'selected' ) : array() ) ),
+                                       wfMsgNoTrans( 
"categorymultisort-sortkey-name-$skn" )
+                               );
+                       }
+                       $html = Html::rawElement( 'select', array(
+                               'name' => 'sortkey',
+                               'id' => 'categorymultisort-select',
+                               'onchange' => 'this.parentNode.submit();',
+                       ), $html );
+                       $html = Html::element( 'label', array(
+                               'for' => 'categorymultisort-select',
+                       ), wfMsgExt( 'categorymultisort-sortkey', 'parseinline' 
) ) . $html;
+                       $html .= Html::input( '', wfMsgNoTrans( 
'categorymultisort-go' ), 'submit' , array(
+                               'id' => 'categorymultisort-select-go',
+                       ) );
+                       $html = Html::hidden( 'title', 
$wgArticle->getTitle()->getPrefixedDBkey() ) . $html;
+                       $html = Html::rawElement( 'form', array(
+                               'action' => $wgScript,
+                               'method' => 'get',
+                               'id' => 'categorymultisort-select-form',
+                               'style' => 'float: right;',
+                       ), $html );
+                       $html .= Html::inlineScript( 'addOnloadHook(function() {
+                               
document.getElementById("categorymultisort-select-go").style.display = "none";
+                       });' );
+               }
+               
+               return $html;
+       }
+       
+       function parseMultisortArgs( $args ) {
+               $arr = array();
+               
+               while ( !is_null( $sk = array_shift( $args ) ) ) {
+                       $sk = explode( '=', $sk, 2 );
+                       if ( count( $sk ) != 2 ) {
+                               continue;
+                       }
+                       list( $skn, $skv ) = $sk;
+                       $skn = $this->cleanSortkey( trim( $skn ) );
+                       $skv = $this->cleanSortkey( $skv );
+                       if ( $skn ) {
+                               $arr[$skn] = $skv;
+                       }
+               }
+               
+               return $arr;
+       }
+       
+       function cleanSortkey( $skx ) {
+               global $wgContLang;
+               
+               $skx = Sanitizer::decodeCharReferences( $skx );
+               $skx = str_replace( "\n", '', $skx );
+               $skx = $wgContLang->convertCategoryKey( $skx );
+               return $skx;
+       }
+}

Added: trunk/extensions/CategoryMultisort/CategoryMultisort.i18n.php
===================================================================
--- trunk/extensions/CategoryMultisort/CategoryMultisort.i18n.php               
                (rev 0)
+++ trunk/extensions/CategoryMultisort/CategoryMultisort.i18n.php       
2010-06-05 02:12:01 UTC (rev 67372)
@@ -0,0 +1,14 @@
+<?php
+
+if ( !defined( 'MEDIAWIKI' ) ) {
+       die();
+}
+
+$messages = array();
+
+$messages['en'] = array(
+       'categorymultisort-desc' => 'An extension allowing categories to be 
viewed with different sortkeys.',
+       'categorymultisort-defaultsortkey-name' => 'Default',
+       'categorymultisort-sortkey' => 'Sortkey: ',
+       'categorymultisort-go' => 'Go',
+);

Added: trunk/extensions/CategoryMultisort/CategoryMultisort.php
===================================================================
--- trunk/extensions/CategoryMultisort/CategoryMultisort.php                    
        (rev 0)
+++ trunk/extensions/CategoryMultisort/CategoryMultisort.php    2010-06-05 
02:12:01 UTC (rev 67372)
@@ -0,0 +1,21 @@
+<?php
+
+if ( !defined( 'MEDIAWIKI' ) ) {
+       die();
+}
+
+$wgExtensionCredits['other'][] = array(
+       'name' => 'CategoryMultisort',
+       'author' => 'Liangent',
+       'descriptionmsg' => 'categorymultisort-desc',
+       'url' => 'http://www.mediawiki.org/wiki/Extension:CategoryMultisort',
+);
+
+$wgAutoloadClasses['CategoryMultisortHooks'] = dirname( __FILE__ ) . 
'/CategoryMultisort.hooks.php';
+$wgAutoloadClasses['CategoryMultisortViewer'] = dirname( __FILE__ ) . 
'/CategoryMultisort.class.php';
+
+$wgExtensionMessagesFiles['CategoryMultisort'] = dirname( __FILE__ ) . 
'/CategoryMultisort.i18n.php';
+
+new CategoryMultisortHooks();
+
+$wgCategoryMultisortSortkeyNames = array();

Added: trunk/extensions/CategoryMultisort/README
===================================================================
--- trunk/extensions/CategoryMultisort/README                           (rev 0)
+++ trunk/extensions/CategoryMultisort/README   2010-06-05 02:12:01 UTC (rev 
67372)
@@ -0,0 +1 @@
+An extension of MediaWiki allowing categories to be viewed with different 
sortkeys.

Added: trunk/extensions/CategoryMultisort/tables.mysql.sql
===================================================================
--- trunk/extensions/CategoryMultisort/tables.mysql.sql                         
(rev 0)
+++ trunk/extensions/CategoryMultisort/tables.mysql.sql 2010-06-05 02:12:01 UTC 
(rev 67372)
@@ -0,0 +1,25 @@
+--
+-- Track category inclusions with more than one sortkey defined
+-- If an inclusion is recorded here, it must be recorded in categorylinks 
table as well
+--
+CREATE TABLE /*_*/categorylinks_multisort (
+  -- Key to page_id of the page defined as a category member.
+  clms_from int unsigned NOT NULL default 0,
+  
+  -- Name of the category.
+  -- This is also the page_title of the category's description page;
+  -- all such pages are in namespace 14 (NS_CATEGORY).
+  clms_to varchar(255) binary NOT NULL default '',
+  
+  -- clms_sortkey_name is A and clms_sortkey is B when [[Category:C|A=B]] is 
used
+  clms_sortkey_name varchar(70) binary NOT NULL default '',
+  
+  -- Truncate so that the clms_sortkey key fits in 1000 bytes 
+  -- (MyISAM 5 with server_character_set=utf8)
+  clms_sortkey varchar(70) binary NOT NULL default ''
+) /*$wgDBTableOptions*/;
+
+CREATE UNIQUE INDEX /*i*/clms_from ON /*_*/categorylinks_multisort 
(clms_from,clms_to,clms_sortkey_name);
+
+-- We always sort within a given category...
+CREATE INDEX /*i*/clms_sortkey ON /*_*/categorylinks_multisort 
(clms_to,clms_sortkey,clms_sortkey_name,clms_from);

Added: trunk/extensions/CategoryMultisort/tables.postgres.sql
===================================================================
--- trunk/extensions/CategoryMultisort/tables.postgres.sql                      
        (rev 0)
+++ trunk/extensions/CategoryMultisort/tables.postgres.sql      2010-06-05 
02:12:01 UTC (rev 67372)
@@ -0,0 +1,8 @@
+CREATE TABLE categorylinks_multisort (
+  clms_from         INTEGER      NOT NULL  REFERENCES page(page_id) ON DELETE 
CASCADE DEFERRABLE INITIALLY DEFERRED,
+  clms_to           TEXT         NOT NULL,
+  clms_sortkey_name TEXT         NOT NULL,
+  clms_sortkey      TEXT
+);
+CREATE UNIQUE INDEX clms_from ON categorylinks_multisort (clms_from, clms_to, 
clms_sortkey_name);
+CREATE INDEX clms_sortkey     ON categorylinks_multisort (clms_to, 
clms_sortkey, clms_sortkey_name, clms_from);



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