MediaWiki REL1_28
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27require_once __DIR__ . '/Maintenance.php';
35 public $reportingInterval = 100;
36 public $pageCount = 0;
37 public $revCount = 0;
38 public $dryRun = false;
39 public $uploads = false;
40 protected $uploadCount = 0;
41 public $imageBasePath = false;
42 public $nsFilter = false;
44 function __construct() {
45 parent::__construct();
46 $gz = in_array( 'compress.zlib', stream_get_wrappers() )
47 ? 'ok'
48 : '(disabled; requires PHP zlib module)';
49 $bz2 = in_array( 'compress.bzip2', stream_get_wrappers() )
50 ? 'ok'
51 : '(disabled; requires PHP bzip2 module)';
53 $this->addDescription(
54 <<<TEXT
55This script reads pages from an XML file as produced from Special:Export or
56dumpBackup.php, and saves them into the current wiki.
58Compressed XML files may be read directly:
59 .gz $gz
60 .bz2 $bz2
61 .7z (if 7za executable is in PATH)
63Note that for very large data sets, importDump.php may be slow; there are
64alternate methods which can be much faster for full site restoration:
67 );
68 $this->stderr = fopen( "php://stderr", "wt" );
69 $this->addOption( 'report',
70 'Report position and speed after every n pages processed', false, true );
71 $this->addOption( 'namespaces',
72 'Import only the pages from namespaces belonging to the list of ' .
73 'pipe-separated namespace names or namespace indexes', false, true );
74 $this->addOption( 'rootpage', 'Pages will be imported as subpages of the specified page',
75 false, true );
76 $this->addOption( 'dry-run', 'Parse dump without actually importing pages' );
77 $this->addOption( 'debug', 'Output extra verbose debug information' );
78 $this->addOption( 'uploads', 'Process file upload data if included (experimental)' );
79 $this->addOption(
80 'no-updates',
81 'Disable link table updates. Is faster but leaves the wiki in an inconsistent state'
82 );
83 $this->addOption( 'image-base-path', 'Import files from a specified path', false, true );
84 $this->addArg( 'file', 'Dump file to import [else use stdin]', false );
85 }
87 public function execute() {
88 if ( wfReadOnly() ) {
89 $this->error( "Wiki is in read-only mode; you'll need to disable it for import to work.", true );
90 }
92 $this->reportingInterval = intval( $this->getOption( 'report', 100 ) );
93 if ( !$this->reportingInterval ) {
94 $this->reportingInterval = 100; // avoid division by zero
95 }
97 $this->dryRun = $this->hasOption( 'dry-run' );
98 $this->uploads = $this->hasOption( 'uploads' ); // experimental!
99 if ( $this->hasOption( 'image-base-path' ) ) {
100 $this->imageBasePath = $this->getOption( 'image-base-path' );
101 }
102 if ( $this->hasOption( 'namespaces' ) ) {
103 $this->setNsfilter( explode( '|', $this->getOption( 'namespaces' ) ) );
104 }
106 if ( $this->hasArg() ) {
107 $this->importFromFile( $this->getArg() );
108 } else {
109 $this->importFromStdin();
110 }
112 $this->output( "Done!\n" );
113 $this->output( "You might want to run rebuildrecentchanges.php to regenerate RecentChanges\n" );
114 }
117 if ( count( $namespaces ) == 0 ) {
118 $this->nsFilter = false;
120 return;
121 }
122 $this->nsFilter = array_unique( array_map( [ $this, 'getNsIndex' ], $namespaces ) );
123 }
125 private function getNsIndex( $namespace ) {
127 $result = $wgContLang->getNsIndex( $namespace );
128 if ( $result !== false ) {
129 return $result;
130 }
131 $ns = intval( $namespace );
132 if ( strval( $ns ) === $namespace && $wgContLang->getNsText( $ns ) !== false ) {
133 return $ns;
134 }
135 $this->error( "Unknown namespace text / index specified: $namespace", true );
136 }
142 private function skippedNamespace( $obj ) {
143 $title = null;
144 if ( $obj instanceof Title ) {
145 $title = $obj;
146 } elseif ( $obj instanceof Revision ) {
147 $title = $obj->getTitle();
148 } elseif ( $obj instanceof WikiRevision ) {
149 $title = $obj->title;
150 } else {
151 throw new MWException( "Cannot get namespace of object in " . __METHOD__ );
152 }
154 if ( is_null( $title ) ) {
155 // Probably a log entry
156 return false;
157 }
159 $ns = $title->getNamespace();
161 return is_array( $this->nsFilter ) && !in_array( $ns, $this->nsFilter );
162 }
164 function reportPage( $page ) {
165 $this->pageCount++;
166 }
171 function handleRevision( $rev ) {
172 $title = $rev->getTitle();
173 if ( !$title ) {
174 $this->progress( "Got bogus revision with null title!" );
176 return;
177 }
179 if ( $this->skippedNamespace( $title ) ) {
180 return;
181 }
183 $this->revCount++;
184 $this->report();
186 if ( !$this->dryRun ) {
187 call_user_func( $this->importCallback, $rev );
188 }
189 }
195 function handleUpload( $revision ) {
196 if ( $this->uploads ) {
197 if ( $this->skippedNamespace( $revision ) ) {
198 return false;
199 }
200 $this->uploadCount++;
201 // $this->report();
202 $this->progress( "upload: " . $revision->getFilename() );
204 if ( !$this->dryRun ) {
205 // bluuuh hack
206 // call_user_func( $this->uploadCallback, $revision );
207 $dbw = $this->getDB( DB_MASTER );
209 return $dbw->deadlockLoop( [ $revision, 'importUpload' ] );
210 }
211 }
213 return false;
214 }
216 function handleLogItem( $rev ) {
217 if ( $this->skippedNamespace( $rev ) ) {
218 return;
219 }
220 $this->revCount++;
221 $this->report();
223 if ( !$this->dryRun ) {
224 call_user_func( $this->logItemCallback, $rev );
225 }
226 }
228 function report( $final = false ) {
229 if ( $final xor ( $this->pageCount % $this->reportingInterval == 0 ) ) {
230 $this->showReport();
231 }
232 }
234 function showReport() {
235 if ( !$this->mQuiet ) {
236 $delta = microtime( true ) - $this->startTime;
237 if ( $delta ) {
238 $rate = sprintf( "%.2f", $this->pageCount / $delta );
239 $revrate = sprintf( "%.2f", $this->revCount / $delta );
240 } else {
241 $rate = '-';
242 $revrate = '-';
243 }
244 # Logs dumps don't have page tallies
245 if ( $this->pageCount ) {
246 $this->progress( "$this->pageCount ($rate pages/sec $revrate revs/sec)" );
247 } else {
248 $this->progress( "$this->revCount ($revrate revs/sec)" );
249 }
250 }
252 }
254 function progress( $string ) {
255 fwrite( $this->stderr, $string . "\n" );
256 }
258 function importFromFile( $filename ) {
259 if ( preg_match( '/\.gz$/', $filename ) ) {
260 $filename = 'compress.zlib://' . $filename;
261 } elseif ( preg_match( '/\.bz2$/', $filename ) ) {
262 $filename = 'compress.bzip2://' . $filename;
263 } elseif ( preg_match( '/\.7z$/', $filename ) ) {
264 $filename = 'mediawiki.compress.7z://' . $filename;
265 }
267 $file = fopen( $filename, 'rt' );
269 return $this->importFromHandle( $file );
270 }
272 function importFromStdin() {
273 $file = fopen( 'php://stdin', 'rt' );
274 if ( self::posix_isatty( $file ) ) {
275 $this->maybeHelp( true );
276 }
278 return $this->importFromHandle( $file );
279 }
281 function importFromHandle( $handle ) {
282 $this->startTime = microtime( true );
284 $source = new ImportStreamSource( $handle );
285 $importer = new WikiImporter( $source, $this->getConfig() );
287 if ( $this->hasOption( 'debug' ) ) {
288 $importer->setDebug( true );
289 }
290 if ( $this->hasOption( 'no-updates' ) ) {
291 $importer->setNoUpdates( true );
292 }
293 if ( $this->hasOption( 'rootpage' ) ) {
294 $statusRootPage = $importer->setTargetRootPage( $this->getOption( 'rootpage' ) );
295 if ( !$statusRootPage->isGood() ) {
296 // Die here so that it doesn't print "Done!"
297 $this->error( $statusRootPage->getMessage()->text(), 1 );
298 return false;
299 }
300 }
301 $importer->setPageCallback( [ $this, 'reportPage' ] );
302 $this->importCallback = $importer->setRevisionCallback(
303 [ $this, 'handleRevision' ] );
304 $this->uploadCallback = $importer->setUploadCallback(
305 [ $this, 'handleUpload' ] );
306 $this->logItemCallback = $importer->setLogItemCallback(
307 [ $this, 'handleLogItem' ] );
308 if ( $this->uploads ) {
309 $importer->setImportUploads( true );
310 }
311 if ( $this->imageBasePath ) {
312 $importer->setImageBasePath( $this->imageBasePath );
313 }
315 if ( $this->dryRun ) {
316 $importer->setPageOutCallback( null );
317 }
319 return $importer->doImport();
320 }
323$maintClass = 'BackupReader';
324require_once RUN_MAINTENANCE_IF_MAIN;
and(b) You must cause any modified files to carry prominent notices stating that You changed the files
Apache License January AND DISTRIBUTION Definitions License shall mean the terms and conditions for and distribution as defined by Sections through of this document Licensor shall mean the copyright owner or entity authorized by the copyright owner that is granting the License Legal Entity shall mean the union of the acting entity and all other entities that control are controlled by or are under common control with that entity For the purposes of this definition control direct or to cause the direction or management of such whether by contract or including but not limited to software source documentation and configuration files Object form shall mean any form resulting from mechanical transformation or translation of a Source including but not limited to compiled object generated and conversions to other media types Work shall mean the work of whether in Source or Object made available under the as indicated by a copyright notice that is included in or attached to the whether in Source or Object that is based or other modifications as a an original work of authorship For the purposes of this Derivative Works shall not include works that remain separable from
has been added to your &Future changes to this page and its associated Talk page will be listed there
wfWaitForSlaves( $ifWritesSince=null, $wiki=false, $cluster=false, $timeout=null)
Waits for the replica DBs to catch up to the master position.
Check whether the wiki is in read-only mode.
Maintenance script that imports XML dump files into the current wiki.
getNsIndex( $namespace)
importFromFile( $filename)
handleRevision( $rev)
Do the actual work.
report( $final=false)
Default constructor.
reportPage( $page)
handleUpload( $revision)
handleLogItem( $rev)
importFromHandle( $handle)
skippedNamespace( $obj)
progress( $string)
setNsfilter(array $namespaces)
Imports a XML dump from a file (either from file upload, files on disk, or HTTP)
MediaWiki exception.
Abstract maintenance class for quickly writing and churning out maintenance scripts with minimal effo...
error( $err, $die=0)
Throw an error to the user.
addArg( $arg, $description, $required=true)
Add some args that are needed.
hasArg( $argId=0)
Does a given argument exist?
getDB( $db, $groups=[], $wiki=false)
Returns a database to be used by current maintenance script.
hasOption( $name)
Checks to see if a particular param exists.
getArg( $argId=0, $default=null)
Get an argument.
addDescription( $text)
Set the description text.
maybeHelp( $force=false)
Maybe show the help.
addOption( $name, $description, $required=false, $withArg=false, $shortName=false, $multiOccurrence=false)
Add a parameter to the script.
getOption( $name, $default=null)
Get an option, or return the default.
Represents a title within MediaWiki.
Definition Title.php:36
XML file reader for the page data importer.
Represents a revision, log entry or upload during the import process.
The ContentHandler facility adds support for arbitrary content types on wiki pages
The ContentHandler facility adds support for arbitrary content types on wiki instead of relying on wikitext for everything It was introduced in MediaWiki Each kind of and so on Built in content types are
Use of locking reads(e.g. the FOR UPDATE clause) is not advised. They are poorly implemented in InnoDB and will cause regular deadlock errors. It 's also surprisingly easy to cripple the wiki with lock contention. Instead of locking reads
We use the convention $dbr for read and $dbw for write to help you keep track of whether the database object is a the world will explode Or to be a subsequent write query which succeeded on the master may fail when replicated to the slave due to a unique key collision Replication on the slave will stop and it may take hours to repair the database and get it back online Setting read_only in my cnf on the slave will avoid this but given the dire we prefer to have as many checks as possible We provide a but the wrapper functions like please read the documentation for except in special pages derived from QueryPage It s a common pitfall for new developers to submit code containing SQL queries which examine huge numbers of rows Remember that COUNT * is(N), counting rows in atable is like counting beans in a bucket.------------------------------------------------------------------------ Replication------------------------------------------------------------------------The largest installation of MediaWiki, Wikimedia, uses a large set ofslave MySQL servers replicating writes made to a master MySQL server. Itis important to understand the issues associated with this setup if youwant to write code destined for Wikipedia.It 's often the case that the best algorithm to use for a given taskdepends on whether or not replication is in use. Due to our unabashedWikipedia-centrism, we often just use the replication-friendly version, but if you like, you can use wfGetLB() ->getServerCount() > 1 tocheck to see if replication is in use.===Lag===Lag primarily occurs when large write queries are sent to the master.Writes on the master are executed in parallel, but they are executed inserial when they are replicated to the slaves. The master writes thequery to the binlog when the transaction is committed. The slaves pollthe binlog and start executing the query as soon as it appears. They canservice reads while they are performing a write query, but will not readanything more from the binlog and thus will perform no more writes. Thismeans that if the write query runs for a long time, the slaves will lagbehind the master for the time it takes for the write query to complete.Lag can be exacerbated by high read load. MediaWiki 's load balancer willstop sending reads to a slave when it is lagged by more than 30 seconds.If the load ratios are set incorrectly, or if there is too much loadgenerally, this may lead to a slave permanently hovering around 30seconds lag.If all slaves are lagged by more than 30 seconds, MediaWiki will stopwriting to the database. All edits and other write operations will berefused, with an error returned to the user. This gives the slaves achance to catch up. Before we had this mechanism, the slaves wouldregularly lag by several minutes, making review of recent editsdifficult.In addition to this, MediaWiki attempts to ensure that the user seesevents occurring on the wiki in chronological order. A few seconds of lagcan be tolerated, as long as the user sees a consistent picture fromsubsequent requests. This is done by saving the master binlog positionin the session, and then at the start of each request, waiting for theslave to catch up to that position before doing any reads from it. Ifthis wait times out, reads are allowed anyway, but the request isconsidered to be in "lagged slave mode". Lagged slave mode can bechecked by calling wfGetLB() ->getLaggedSlaveMode(). The onlypractical consequence at present is a warning displayed in the pagefooter.===Lag avoidance===To avoid excessive lag, queries which write large numbers of rows shouldbe split up, generally to write one row at a time. Multi-row INSERT ...SELECT queries are the worst offenders should be avoided altogether.Instead do the select first and then the insert.===Working with lag===Despite our best efforts, it 's not practical to guarantee a low-lagenvironment. Lag will usually be less than one second, but mayoccasionally be up to 30 seconds. For scalability, it 's very importantto keep load on the master low, so simply sending all your queries tothe master is not the answer. So when you have a genuine need forup-to-date data, the following approach is advised:1) Do a quick query to the master for a sequence number or timestamp 2) Run the full query on the slave and check if it matches the data you gotfrom the master 3) If it doesn 't, run the full query on the masterTo avoid swamping the master every time the slaves lag, use of thisapproach should be kept to a minimum. In most cases you should just readfrom the slave and let the user deal with the delay.------------------------------------------------------------------------ Lock contention------------------------------------------------------------------------Due to the high write rate on Wikipedia(and some other wikis), MediaWiki developers need to be very careful to structure their writesto avoid long-lasting locks. By default, MediaWiki opens a transactionat the first query, and commits it before the output is sent. Locks willbe held from the time when the query is done until the commit. So youcan reduce lock time by doing as much processing as possible before youdo your write queries.Often this approach is not good enough, and it becomes necessary toenclose small groups of queries in their own transaction. Use thefollowing syntax:$dbw=wfGetDB(DB_MASTER
deferred txt A few of the database updates required by various functions here can be deferred until after the result page is displayed to the user For updating the view updating the linked to tables after a etc PHP does not yet have any way to tell the server to actually return and disconnect while still running these but it might have such a feature in the future We handle these by creating a deferred update object and putting those objects on a global then executing the whole list after the page is displayed We don t do anything smart like collating updates to the same table or such because the list is almost always going to have just one item on if that
Definition deferred.txt:13
this class mediates it Skin Encapsulates a look and feel for the wiki All of the functions that render HTML and make choices about how to render it are here and are called from various other places when and is meant to be subclassed with other skins that may override some of its functions The User object contains a reference to a and so rather than having a global skin object we just rely on the global User and get the skin with $wgUser and also has some character encoding functions and other locale stuff The current user interface language is instantiated as and the local content language as $wgContLang
Definition design.txt:57
design txt This is a brief overview of the new design More thorough and up to date information is available on the documentation wiki at etc Handles the details of getting and saving to the user table of the and dealing with sessions and cookies OutputPage Encapsulates the entire HTML page that will be sent in response to any server request It is used by calling its functions to add in any and then calling output() to send it all. It could be easily changed to send incrementally if that becomes useful
when a variable name is used in a it is silently declared as a new local masking the global
Definition design.txt:95
design txt This is a brief overview of the new design More thorough and up to date information is available on the documentation wiki at https
Definition design.txt:12
design txt This is a brief overview of the new design More thorough and up to date information is available on the documentation wiki at etc Handles the details of getting and saving to the user table of the and dealing with sessions and cookies OutputPage Encapsulates the entire HTML page that will be sent in response to any server request It is used by calling its functions to add in any and then calling but I prefer the flexibility This should also do the output encoding The system allocates a global one in $wgOut Title Represents the title of an and does all the work of translating among various forms such as plain database etc For and for historical it also represents a few features of articles that don t involve their such as access rights See also title txt Article Encapsulates access to the page table of the database The object represents a an and maintains state such as etc Revision Encapsulates individual page revision data and access to the revision text blobs storage system Higher level code should never touch text storage directly
Definition design.txt:39
This document is intended to provide useful advice for parties seeking to redistribute MediaWiki to end users It s targeted particularly at maintainers for Linux since it s been observed that distribution packages of MediaWiki often break We ve consistently had to recommend that users seeking support use official tarballs instead of their distribution s and this often solves whatever problem the user is having It would be nice if this could such as
the array() calling protocol came about after MediaWiki 1.4rc1.
The index of the header message $result[1]=The index of the body text message $result[2 through n]=Parameters passed to body text message. Please note the header message cannot receive/use parameters. 'ImportHandleLogItemXMLTag':When parsing a XML tag in a log item. Return false to stop further processing of the tag $reader:XMLReader object $logInfo:Array of information 'ImportHandlePageXMLTag':When parsing a XML tag in a page. Return false to stop further processing of the tag $reader:XMLReader object & $pageInfo:Array of information 'ImportHandleRevisionXMLTag':When parsing a XML tag in a page revision. Return false to stop further processing of the tag $reader:XMLReader object $pageInfo:Array of page information $revisionInfo:Array of revision information 'ImportHandleToplevelXMLTag':When parsing a top level XML tag. Return false to stop further processing of the tag $reader:XMLReader object 'ImportHandleUploadXMLTag':When parsing a XML tag in a file upload. Return false to stop further processing of the tag $reader:XMLReader object $revisionInfo:Array of information 'ImportLogInterwikiLink':Hook to change the interwiki link used in log entries and edit summaries for transwiki imports. & $fullInterwikiPrefix:Interwiki prefix, may contain colons. & $pageTitle:String that contains page title. 'ImportSources':Called when reading from the $wgImportSources configuration variable. Can be used to lazy-load the import sources list. & $importSources:The value of $wgImportSources. Modify as necessary. See the comment in DefaultSettings.php for the detail of how to structure this array. 'InfoAction':When building information to display on the action=info page. $context:IContextSource object & $pageInfo:Array of information 'InitializeArticleMaybeRedirect':MediaWiki check to see if title is a redirect. & $title:Title object for the current page & $request:WebRequest & $ignoreRedirect:boolean to skip redirect check & $target:Title/string of redirect target & $article:Article object 'InternalParseBeforeLinks':during Parser 's internalParse method before links but after nowiki/noinclude/includeonly/onlyinclude and other processings. & $parser:Parser object & $text:string containing partially parsed text & $stripState:Parser 's internal StripState object 'InternalParseBeforeSanitize':during Parser 's internalParse method just before the parser removes unwanted/dangerous HTML tags and after nowiki/noinclude/includeonly/onlyinclude and other processings. Ideal for syntax-extensions after template/parser function execution which respect nowiki and HTML-comments. & $parser:Parser object & $text:string containing partially parsed text & $stripState:Parser 's internal StripState object 'InterwikiLoadPrefix':When resolving if a given prefix is an interwiki or not. Return true without providing an interwiki to continue interwiki search. $prefix:interwiki prefix we are looking for. & $iwData:output array describing the interwiki with keys iw_url, iw_local, iw_trans and optionally iw_api and iw_wikiid. 'InvalidateEmailComplete':Called after a user 's email has been invalidated successfully. $user:user(object) whose email is being invalidated 'IRCLineURL':When constructing the URL to use in an IRC notification. Callee may modify $url and $query, URL will be constructed as $url . $query & $url:URL to index.php & $query:Query string $rc:RecentChange object that triggered url generation 'IsFileCacheable':Override the result of Article::isFileCacheable()(if true) & $article:article(object) being checked 'IsTrustedProxy':Override the result of IP::isTrustedProxy() & $ip:IP being check & $result:Change this value to override the result of IP::isTrustedProxy() 'IsUploadAllowedFromUrl':Override the result of UploadFromUrl::isAllowedUrl() $url:URL used to upload from & $allowed:Boolean indicating if uploading is allowed for given URL 'isValidEmailAddr':Override the result of Sanitizer::validateEmail(), for instance to return false if the domain name doesn 't match your organization. $addr:The e-mail address entered by the user & $result:Set this and return false to override the internal checks 'isValidPassword':Override the result of User::isValidPassword() $password:The password entered by the user & $result:Set this and return false to override the internal checks $user:User the password is being validated for 'Language::getMessagesFileName':$code:The language code or the language we 're looking for a messages file for & $file:The messages file path, you can override this to change the location. 'LanguageGetMagic':DEPRECATED! Use $magicWords in a file listed in $wgExtensionMessagesFiles instead. Use this to define synonyms of magic words depending of the language & $magicExtensions:associative array of magic words synonyms $lang:language code(string) 'LanguageGetNamespaces':Provide custom ordering for namespaces or remove namespaces. Do not use this hook to add namespaces. Use CanonicalNamespaces for that. & $namespaces:Array of namespaces indexed by their numbers 'LanguageGetSpecialPageAliases':DEPRECATED! Use $specialPageAliases in a file listed in $wgExtensionMessagesFiles instead. Use to define aliases of special pages names depending of the language & $specialPageAliases:associative array of magic words synonyms $lang:language code(string) 'LanguageGetTranslatedLanguageNames':Provide translated language names. & $names:array of language code=> language name $code:language of the preferred translations 'LanguageLinks':Manipulate a page 's language links. This is called in various places to allow extensions to define the effective language links for a page. $title:The page 's Title. & $links:Associative array mapping language codes to prefixed links of the form "language:title". & $linkFlags:Associative array mapping prefixed links to arrays of flags. Currently unused, but planned to provide support for marking individual language links in the UI, e.g. for featured articles. 'LanguageSelector':Hook to change the language selector available on a page. $out:The output page. $cssClassName:CSS class name of the language selector. 'LinkBegin':DEPRECATED! Use HtmlPageLinkRendererBegin instead. Used when generating internal and interwiki links in Linker::link(), before processing starts. Return false to skip default processing and return $ret. See documentation for Linker::link() for details on the expected meanings of parameters. $skin:the Skin object $target:the Title that the link is pointing to & $html:the contents that the< a > tag should have(raw HTML) $result
Definition hooks.txt:1937
namespace and then decline to actually register it & $namespaces
Definition hooks.txt:956
namespace and then decline to actually register it file or subcat img or subcat $title
Definition hooks.txt:986
null for the local wiki Added in
Definition hooks.txt:1558
We ve cleaned up the code here by removing clumps of infrequently used code and moving them off somewhere else It s much easier for someone working with this code to see what s _really_ going and make changes or fix bugs In we can take all the code that deals with the little used title reversing we can concentrate it all in an extension file
Definition hooks.txt:108
namespace are movable Hooks may change this value to override the return value of MWNamespace::isMovable(). 'NewDifferenceEngine' do that in ParserLimitReportFormat instead use this to modify the parameters of the image and a DIV can begin in one section and end in another Make sure your code can handle that case gracefully See the EditSectionClearerLink extension for an example zero but section is usually empty its values are the globals values before the output is cached $page
Definition hooks.txt:2534
presenting them properly to the user as errors is done by the caller return true use this to change the list i e etc $rev
Definition hooks.txt:1734
as see the revision history and available at free of to any person obtaining a copy of this software and associated documentation files(the "Software")
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition injection.txt:37
Prior to maintenance scripts were a hodgepodge of code that had no cohesion or formal method of action Beginning maintenance scripts have been cleaned up to use a unified class Directory structure How to run a script How to write your own DIRECTORY STRUCTURE The maintenance directory of a MediaWiki installation contains several all of which have unique purposes HOW TO RUN A SCRIPT Ridiculously just call php someScript php that s in the top level maintenance directory if not default wiki
This document describes the state of Postgres support in and is fairly well maintained The main code is very well while extensions are very hit and miss it is probably the most supported database after MySQL Much of the work in making MediaWiki database agnostic came about through the work of creating Postgres as and are nearing end of but without copying over all the usage comments General notes on the but these can almost always be programmed around *Although Postgres has a true BOOLEAN boolean columns are always mapped to as the code does not always treat the column as a and VARBINARY columns should simply be TEXT The only exception is when VARBINARY is used to store true binary data
Definition postgres.txt:43
Definition defines.php:23