MediaWiki-l November 2004

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99 participants
120 discussions

MySQL 4.1 & MediaWiki backup corruption warning
by Brion Vibber 18 Nov '04

18 Nov '04

Just a note of warning for those of you using MySQL 4.1: changes in the new charset options may result in mysqldump outputting bogus data into backups which can't be restored without data loss.* This may affect some Unicode text, and certainly can irretrievably corrupt compressed old revision text (using $wgCompressRevisions option). If you're using MySQL 4.1, you should probably examine and test your backup dumps to make sure they can be restored and used successfully. Passing an option like --default-character-set=latin1 may stop mysqldump from trying to 'convert' (and thus corrupt) your data. (If your server is not set to the defaults, this may or may not be the correct value for you.) In the future hopefully we'll be able to play nicer with the new character set settings, but for now MediaWiki follows prior practice for older versions of MySQL where there was (and remains) no ability to correctly indicate the charset used in a particular database, table, or field. * Specifically, a default "latin-1" to UTF-8 conversion silently corrupts all bytes with the values 0x81, 0x8d, 0x8f, 0x90, or 0x9d by turning them into literal question marks. The question marks cannot be returned to their original byte values when the data is re-imported. -- brion vibber (brion @ pobox.com)

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Help with "Tables Contents"
by pm823 18 Nov '04

18 Nov '04

Dear all, I am a beginner with PHP and Javascripts, I have interested in MediaWiki . I want to build it for sharing linux knowledge. But I do not know to build the "Table contents" of each page. For example: *Contents* [showhide <javascript:toggleToc()>] 1 Overview and history of mathematics <http://en.wikipedia.org/wiki/Mathematics#Overview_and_history_of_mathematics> 2 Topics in mathematics <http://en.wikipedia.org/wiki/Mathematics#Topics_in_mathematics> 2.1 Quantity <http://en.wikipedia.org/wiki/Mathematics#Quantity> 2.2 Change <http://en.wikipedia.org/wiki/Mathematics#Change> 2.3 Structure <http://en.wikipedia.org/wiki/Mathematics#Structure> 2.4 Space <http://en.wikipedia.org/wiki/Mathematics#Space> 2.5 Discrete mathematics <http://en.wikipedia.org/wiki/Mathematics#Discrete_mathematics> I have found all of information, but there is no more information about it. I only know "Table contents" are some javascripts. I have found the MediaWiki (wiki) page source, there is not include any javascrtips code. How can I insert these code in my "wiki" page ? Anybody could give me some tips or information ? Thank you very much. :-) Thanks a lot, Pete Fong

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odd network problem with installation of mediawiki
by John Fink 17 Nov '04

17 Nov '04

Hey folks, I've installed Mediawiki a few times now with great success; kudos to the folks that made the install so painless. I'm faced with installing Mediawiki on a machine which has a slightly strange network topology. Basically, there are two interfaces on the machine: one answers to machine.net1.example.com and the other to machine.net2.example.com. Computers on the net1 local subnet are blocked from accessing the machine over the net2 interface; same goes for net2 machines trying to get to net1. Apache considers the machine.net1 address to be canonical, so after Mediawiki installs a machine that tries to reach the Mediawiki install from net2 has their URL redirected to the canonical net1 address, and therefore is blocked. What I want to know is there a reasonably simple way to get Mediawiki to disregard the canonical address and just use http://machine.net2.example.com/ when referred to as such? Is there a sane and safe way to disable the redirect? Thanks much for any information, jf

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table appearance in the mediawiki browser
by vanibhat＠comcast.net 17 Nov '04

17 Nov '04

HI, I have installed Mediwiki 1.3.8 on Solaris. I am very new to MediWiki. I have created table called "environment" and also loaded the data in to the table which is in the Database called "wikidb". Now how can I view ir from my mediawiki browser. what are the steps do I need to take inorder to appear my table in mediawiki browser. Thanks, Vani

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Access rights for Categories/Namespaces
by Luigi Montanez 17 Nov '04

17 Nov '04

Hello, I recently started tinkering with MediaWiki, and I have a special case that I couldn't find a solution to on the MetaWiki: http://meta.wikimedia.org/wiki/Preventing_Access I want to make a "HOWTOs" section on my wiki, and I want all anonymous users to be able to read just that section, but not other sections' pages. One method I thought would work was to create a "Category:HOWTOs" and add pages into there, and then specify that category be world readable: # Pages anonymous (not-logged-in) users may see $wgWhitelistRead = array ("Main Page", "Special:Userlogin", "Wikipedia:Help", "Category:HOWTOs"); However this doesn't allow pages in the HOWTOs category to be seen anonymously. I tried using a wildcard operator ' * ', but that didn't work either. Thanks for any help.

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Extensions using Wiki syntax
by Ralph 17 Nov '04

17 Nov '04

Are there any plans for being able to write extensions that could generate wiki syntax instead of straight HTML? Ralph

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Problems installing MediaWiki 1.3.7 on RH AS2.1 Linux
by Jot Powers 17 Nov '04

17 Nov '04

I've beaten my head against the wall for a few days, and give up, so I'm requesting help. Here is the config screen: Please include all of the lines below when reporting installation problems. Checking environment... * PHP 4.3.2: ok * PHP server API is apache2filter; using ugly URLs (index.php?title=Page_Title) * Have XML / Latin1-UTF-8 conversion support. * PHP's memory_limit is 20M. If this is too low, installation may fail! * Have zlib support; enabling output compression. * Found GD graphics library built-in, image thumbnailing will be enabled if you enable uploads. * Installation directory: /var/www/html/wiki * Script URI path: /wiki * Connected as root (automatic) * Connected to database... 4.1.7-standard; enabling MySQL 4 enhancements * Database wikidb exists * There are already MediaWiki tables in this database. Checking if updates are needed... ...ipblocks is up to date. ...already have interwiki table ...indexes seem up to 20031107 standards ...have linkscc table. ...linkscc is up to date, or does not exist. Good. ...have hitcounter table. Converting links table to ID-ID... Sorry! The wiki is experiencing some technical difficulties, and cannot contact the database server. [XX@XX wiki]# uname -a Linux XX 2.4.21-15.ELsmp #1 SMP Thu Apr 22 00:18:24 EDT 2004 i686 i686 i386 GNU/Linux Relevant packages: MySQL-client-4.1.7-0 php-mysql-4.3.2-11.ent MySQL-server-4.1.7-0 httpd-2.0.46-32.ent php-4.3.2-11.ent php-mysql-4.3.2-11.ent I've googled the mailing list archives and attempted to fix any problems I see there. As you can see the database is getting created and I've made sure that the wikiuser id has db grant access: [XX@XX wiki]# mysqlshow +-----------+ | Databases | +-----------+ | mysql | | test | | wikidb | +-----------+ mysql> grant all privileges on db.* to wikiuser@'localhost'; mysql> flush privileges; I also attempted to get around what might be a problem with the authentication scheme mentioned in the mailling list archives: mysql> update mysql.user set password = OLD_PASSWORD('XXXXXX') -> where host = 'localhost' and user = 'wikiuser'; mysql 3286 0.0 0.2 32148 12248 pts/0 S 13:06 0:00 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --pid-file=/var/lib/mysql/XX.pid --skip-locking --socket=/var/lib/mysql/mysql.sock --old-passwords I've opened permission on the config directory, there is nothing of value in the httpd server logs or the mysqld log file. Any other ideas? I'm really hoping for something easy I'm overlooking. Thanks. -Jot -- Jot Powers <misc(a)bofh.com> http://www.bofh.com Bumper Sticker: Time flies like an arrow. Fruit flies like a banana.

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SEO extension
by Michael 17 Nov '04

17 Nov '04

I didn't know if anybody else would be interested in this or possibly adding it into the MediaWiki source tree but figured I'd toss this out for people to use or not use as they may. It enhances the keyword and description meta tags of the wiki by first allowing you to set the number of link text keywords by setting $wgKeywordsX. You can set the default keywords and description with $wgKeywords and $wgDescription. If either the keywords or description aren't set otherwise then they'll get filled in with the link text (as keywords did before). If you also use the extension then users can edit the page's keywords and description when editing the wiki using the keywords and description tags. This can be useful for more fine grained control over how search engines index your wiki pages. Change to includes/OutputPage.php. --- # This function takes the existing and broken links for the page # and uses the first 10 of them for META keywords function addMetaTags () { global $wgLinkCache, $wgOut; global $wgKeywordsX, $wgKeywords, $wgDescription; $good = array_keys ( $wgLinkCache->mGoodLinks ) ; $bad = array_keys ( $wgLinkCache->mBadLinks ) ; if ( ! ( $wgKeywords && $wgDescription ) ) { $a = array_merge ( $good , $bad ) ; $wgKeywordsX ? $wgKeywordsX : 10; $a = array_slice ( $a , 0 , $wgKeywordsX ) ; # keywords max $a = implode ( "," , $a ) ; $strip = array( "/<.*?>/" => '', "/[_]/" => ' ' ); $a = htmlspecialchars(preg_replace(array_keys($strip), array_values($strip),$a )); } $wgKeywords = $wgKeywords ? $wgKeywords : $a; $wgOut->addMeta ( "keywords" , $wgKeywords ); $wgDescription = $wgDescription ? $wgDescription : $a; $wgOut->addMeta ( "description" , $wgDescription ); } --- New file, extensions/SEO.php. --- /* MediaWiki extension to allow wiki users to change the page's keyword and description meta tags. Introduces the description and keywords tags. */ $wgExtensionFunctions[] = "SEO_DescriptionExtension"; $wgExtensionFunctions[] = "SEO_KeywordsExtension"; function SEO_DescriptionExtension () { global $wgParser; $wgParser->setHook( 'description', '_SEO_Description' ); } function _SEO_Description ( $input ) { global $wgDescription; $wgDescription = $input; return ''; } function SEO_KeywordsExtension () { global $wgParser; $wgParser->setHook( 'keywords', '_SEO_Keywords' ); } function _SEO_Keywords ( $input ) { global $wgKeywords; $wgKeywords = $input; return ''; } --- -- Michael <mogmios(a)mlug.missouri.edu> http://kavlon.org

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Fwd: presentation on Wikipedia goes well!
by ilooy 17 Nov '04

17 Nov '04

The first of the two conferences went quite well. I only ran into a couple of problems and these could perhaps be solved for the next conference. It was held at Wentworth-by-the-Sea in Newcastle NH, right next to Rye and Hampton Beach... the place was gorgeous! And the facilities were awesome, the AV folks there were very helpful in getting the equipment all connected and very accomodating. However the costs were pricey, an internet live connect went for $150. A live AV support person was $500 for the day... I didn't need an AV person but even so, they were helpful anyway... no charge for getting the connectors and making sure I was ok to start the presentation, they were very helpful indeed and very friendly! All in all I presented on Friday and Saturday and the headcount totals were over 100 educators, school admins and staff from Northern New England area. The presentation on Wikipedia was well received... the major objection, or should I say concern, is the question that "how can Wikipedia content be accurate without 'experts' writing the articles?" My response is that the articles could be checked against other online ecyclopedia content and thus one could be reassured of the quality of content. Also that there are safeguards like 'peer editing' and 'npov' which help make the articles both accurate and non-biased, or as much as a npov objective can guarantee. If there are other good points to counteract this objection I'd be interested in putting this into the next presentation... although for this next one at McAuliffe Center Tech Conference I'll have a fraction of the time I had at the NHAWLT presentation. One of the problems I ran into was that I lost 'mousage', I lost the mouse pointer, when I projected the laptop screen. I used two different projectors and also tried an attached USB mouse instead of the glidepoint. But the instance of MediaWiki running on the Linspire laptop was flawless of itself... a really good example of how powerful and yet easy to use and learn to edit the wiki engine is... OpenOffice was very handy as a presentation tool. I used the suggested presentation from French and edited it and thinned it down for the time I had to work with... I also used the screen shots of the different language Wikipedias (that was done around February)... And I incorporated the Alexa charts to compare with Britannica, Groliers, Ecyclopedia.com and refer.com so as to give some idea of Wikipedia's growth and expansion. I also briefly explained some of the other sister projects and highlighted why the wiki software lends itself so well to collaborative projects... The next conference is in December. With thanks to all who helped get me get MediaWiki running on Linspire and also those that gave me good suggestions on what to say during the presentation! Best regards, Jay Bowks [[w:en:User:ILVI]] On Wed, 27 Oct 2004 18:42:54 +0200, Ashar Voultoiz <hashar(a)altern.org> wrote: > ilooy wrote: > > > > Hi fellow Wikipedians, > > > > I'll be doing a presentation on Wikipedia for > > the McAuliffe Conference and the NHAWLT > > Teachers' Conference in the coming weeks > > and was wondering if anyone else has done > > a presentation to a large group... what features > > would be good to highlight... and what seems > > to work well with a group that has not heard > > much about the project yet. > > > > If you have some ideas as to what might > > be good points to bring out please let me > > know. I appreciate any insights you may > > offer on this subject. > > > > with sincere regards, > > Jay B. > > [[w:en:User:ILVI]] > -- -- ilooy.gaon(a)gmail.com

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Warning: imagejpeg()...: Unable to open thumb
by Markus Klaus Schäffauer 16 Nov '04

16 Nov '04

Hi, we get the following error message on http://www.vdr-wiki.de/wiki/index.php/Sysinfo-plugin : Warning: imagejpeg() [function.imagejpeg <http://www.php.net/function.imagejpeg>]: Unable to open '/www/htdocs/v101777/wiki/images/thumb/8/89/180px-Sysinfo-plugin.jpg' for writing in /www/htdocs/v101777/wiki/includes/Image.php on line 232 How can we avoid that error? Thank you, Markus

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MediaWiki-l November 2004