MediaWiki REL1_28
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26require_once __DIR__ . '/Maintenance.php';
34 public function __construct() {
35 parent::__construct();
36 $this->addOption( "old", "Old db prefix [0 for none]", true, true );
37 $this->addOption( "new", "New db prefix [0 for none]", true, true );
38 }
40 public function getDbType() {
42 }
44 public function execute() {
47 // Allow for no old prefix
48 if ( $this->getOption( 'old', 0 ) === '0' ) {
49 $old = '';
50 } else {
51 // Use nice safe, sane, prefixes
52 preg_match( '/^[a-zA-Z]+_$/', $this->getOption( 'old' ), $m );
53 $old = isset( $m[0] ) ? $m[0] : false;
54 }
55 // Allow for no new prefix
56 if ( $this->getOption( 'new', 0 ) === '0' ) {
57 $new = '';
58 } else {
59 // Use nice safe, sane, prefixes
60 preg_match( '/^[a-zA-Z]+_$/', $this->getOption( 'new' ), $m );
61 $new = isset( $m[0] ) ? $m[0] : false;
62 }
64 if ( $old === false || $new === false ) {
65 $this->error( "Invalid prefix!", true );
66 }
67 if ( $old === $new ) {
68 $this->output( "Same prefix. Nothing to rename!\n", true );
69 }
71 $this->output( "Renaming DB prefix for tables of $wgDBname from '$old' to '$new'\n" );
72 $count = 0;
74 $dbw = $this->getDB( DB_MASTER );
75 $res = $dbw->query( "SHOW TABLES " . $dbw->buildLike( $old, $dbw->anyString() ) );
76 foreach ( $res as $row ) {
77 // XXX: odd syntax. MySQL outputs an oddly cased "Tables of X"
78 // sort of message. Best not to try $row->x stuff...
79 $fields = get_object_vars( $row );
80 // Silly for loop over one field...
81 foreach ( $fields as $table ) {
82 // $old should be regexp safe ([a-zA-Z_])
83 $newTable = preg_replace( '/^' . $old . '/', $new, $table );
84 $this->output( "Renaming table $table to $newTable\n" );
85 $dbw->query( "RENAME TABLE $table TO $newTable" );
86 }
87 $count++;
88 }
89 $this->output( "Done! [$count tables]\n" );
90 }
93$maintClass = "RenameDbPrefix";
Abstract maintenance class for quickly writing and churning out maintenance scripts with minimal effo...
error( $err, $die=0)
Throw an error to the user.
getDB( $db, $groups=[], $wiki=false)
Returns a database to be used by current maintenance script.
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.
Maintenance script that changes the prefix of database tables.
Does the script need different DB access? By default, we give Maintenance scripts normal rights to th...
Default constructor.
Do the actual work.
Definition database.txt:21
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
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
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
controlled by $wgMainCacheType controlled by $wgParserCacheType controlled by $wgMessageCacheType If you set CACHE_NONE to one of the three control default value for MediaWiki still create a but requests to it are no ops and we always fall through to the database If the cache daemon can t be it should also disable itself fairly smoothly By $wgMemc is used but when it is $parserMemc or $messageMemc this is mentioned $wgDBname
Definition defines.php:23