MediaWiki  master
DatabaseInstaller.php
Go to the documentation of this file.
1 <?php
30 
37 abstract class DatabaseInstaller {
38 
44  public $parent;
45 
49  public static $minimumVersion;
50 
54  protected static $notMinimumVersionMessage;
55 
61  public $db = null;
62 
68  protected $internalDefaults = [];
69 
75  protected $globalNames = [];
76 
84  public static function meetsMinimumRequirement( $serverVersion ) {
85  if ( version_compare( $serverVersion, static::$minimumVersion ) < 0 ) {
86  return Status::newFatal(
87  static::$notMinimumVersionMessage, static::$minimumVersion, $serverVersion
88  );
89  }
90 
91  return Status::newGood();
92  }
93 
97  abstract public function getName();
98 
102  abstract public function isCompiled();
103 
109  public function checkPrerequisites() {
110  return Status::newGood();
111  }
112 
120  abstract public function getConnectForm();
121 
131  abstract public function submitConnectForm();
132 
140  public function getSettingsForm() {
141  return false;
142  }
143 
150  public function submitSettingsForm() {
151  return Status::newGood();
152  }
153 
162  abstract public function openConnection();
163 
170  abstract public function setupDatabase();
171 
181  public function getConnection() {
182  if ( $this->db ) {
183  return Status::newGood( $this->db );
184  }
185 
186  $status = $this->openConnection();
187  if ( $status->isOK() ) {
188  $this->db = $status->value;
189  // Enable autocommit
190  $this->db->clearFlag( DBO_TRX );
191  $this->db->commit( __METHOD__ );
192  }
193 
194  return $status;
195  }
196 
205  private function stepApplySourceFile(
206  $sourceFileMethod,
207  $stepName,
208  $archiveTableMustNotExist = false
209  ) {
210  $status = $this->getConnection();
211  if ( !$status->isOK() ) {
212  return $status;
213  }
214  $this->db->selectDB( $this->getVar( 'wgDBname' ) );
215 
216  if ( $archiveTableMustNotExist && $this->db->tableExists( 'archive', __METHOD__ ) ) {
217  $status->warning( "config-$stepName-tables-exist" );
218  $this->enableLB();
219 
220  return $status;
221  }
222 
223  $this->db->setFlag( DBO_DDLMODE ); // For Oracle's handling of schema files
224  $this->db->begin( __METHOD__ );
225 
226  $error = $this->db->sourceFile(
227  call_user_func( [ $this, $sourceFileMethod ], $this->db )
228  );
229  if ( $error !== true ) {
230  $this->db->reportQueryError( $error, 0, '', __METHOD__ );
231  $this->db->rollback( __METHOD__ );
232  $status->fatal( "config-$stepName-tables-failed", $error );
233  } else {
234  $this->db->commit( __METHOD__ );
235  }
236  // Resume normal operations
237  if ( $status->isOK() ) {
238  $this->enableLB();
239  }
240 
241  return $status;
242  }
243 
249  public function createTables() {
250  return $this->stepApplySourceFile( 'getSchemaPath', 'install', true );
251  }
252 
258  public function insertUpdateKeys() {
259  return $this->stepApplySourceFile( 'getUpdateKeysPath', 'updates', false );
260  }
261 
270  private function getSqlFilePath( $db, $filename ) {
271  global $IP;
272 
273  $dbmsSpecificFilePath = "$IP/maintenance/" . $db->getType() . "/$filename";
274  if ( file_exists( $dbmsSpecificFilePath ) ) {
275  return $dbmsSpecificFilePath;
276  } else {
277  return "$IP/maintenance/$filename";
278  }
279  }
280 
288  public function getSchemaPath( $db ) {
289  return $this->getSqlFilePath( $db, 'tables.sql' );
290  }
291 
299  public function getUpdateKeysPath( $db ) {
300  return $this->getSqlFilePath( $db, 'update-keys.sql' );
301  }
302 
307  public function createExtensionTables() {
308  $status = $this->getConnection();
309  if ( !$status->isOK() ) {
310  return $status;
311  }
312 
313  // Now run updates to create tables for old extensions
314  DatabaseUpdater::newForDB( $this->db )->doUpdates( [ 'extensions' ] );
315 
316  return $status;
317  }
318 
324  abstract public function getLocalSettings();
325 
331  public function getSchemaVars() {
332  return [];
333  }
334 
341  public function setupSchemaVars() {
342  $status = $this->getConnection();
343  if ( $status->isOK() ) {
344  $status->value->setSchemaVars( $this->getSchemaVars() );
345  } else {
346  $msg = __METHOD__ . ': unexpected error while establishing'
347  . ' a database connection with message: '
348  . $status->getMessage()->plain();
349  throw new MWException( $msg );
350  }
351  }
352 
358  public function enableLB() {
359  $status = $this->getConnection();
360  if ( !$status->isOK() ) {
361  throw new MWException( __METHOD__ . ': unexpected DB connection error' );
362  }
363 
364  MediaWikiServices::resetGlobalInstance();
365  $services = MediaWikiServices::getInstance();
366 
367  $connection = $status->value;
368  $services->redefineService( 'DBLoadBalancerFactory', function () use ( $connection ) {
369  return LBFactorySingle::newFromConnection( $connection );
370  } );
371  }
372 
379  public function doUpgrade() {
380  $this->setupSchemaVars();
381  $this->enableLB();
382 
383  $ret = true;
384  ob_start( [ $this, 'outputHandler' ] );
385  $up = DatabaseUpdater::newForDB( $this->db );
386  try {
387  $up->doUpdates();
388  $up->purgeCache();
389  } catch ( MWException $e ) {
390  echo "\nAn error occurred:\n";
391  echo $e->getText();
392  $ret = false;
393  } catch ( Exception $e ) {
394  echo "\nAn error occurred:\n";
395  echo $e->getMessage();
396  $ret = false;
397  }
398  ob_end_flush();
399 
400  return $ret;
401  }
402 
408  public function preInstall() {
409  }
410 
414  public function preUpgrade() {
415  }
416 
421  public function getGlobalNames() {
422  return $this->globalNames;
423  }
424 
430  public function __construct( $parent ) {
431  $this->parent = $parent;
432  }
433 
441  protected static function checkExtension( $name ) {
442  return extension_loaded( $name );
443  }
444 
449  public function getReadableName() {
450  // Messages: config-type-mysql, config-type-postgres, config-type-sqlite
451  return wfMessage( 'config-type-' . $this->getName() )->text();
452  }
453 
458  public function getGlobalDefaults() {
459  $defaults = [];
460  foreach ( $this->getGlobalNames() as $var ) {
461  if ( isset( $GLOBALS[$var] ) ) {
462  $defaults[$var] = $GLOBALS[$var];
463  }
464  }
465  return $defaults;
466  }
467 
472  public function getInternalDefaults() {
474  }
475 
482  public function getVar( $var, $default = null ) {
483  $defaults = $this->getGlobalDefaults();
484  $internal = $this->getInternalDefaults();
485  if ( isset( $defaults[$var] ) ) {
486  $default = $defaults[$var];
487  } elseif ( isset( $internal[$var] ) ) {
488  $default = $internal[$var];
489  }
490 
491  return $this->parent->getVar( $var, $default );
492  }
493 
499  public function setVar( $name, $value ) {
500  $this->parent->setVar( $name, $value );
501  }
502 
512  public function getTextBox( $var, $label, $attribs = [], $helpData = "" ) {
513  $name = $this->getName() . '_' . $var;
514  $value = $this->getVar( $var );
515  if ( !isset( $attribs ) ) {
516  $attribs = [];
517  }
518 
519  return $this->parent->getTextBox( [
520  'var' => $var,
521  'label' => $label,
522  'attribs' => $attribs,
523  'controlName' => $name,
524  'value' => $value,
525  'help' => $helpData
526  ] );
527  }
528 
539  public function getPasswordBox( $var, $label, $attribs = [], $helpData = "" ) {
540  $name = $this->getName() . '_' . $var;
541  $value = $this->getVar( $var );
542  if ( !isset( $attribs ) ) {
543  $attribs = [];
544  }
545 
546  return $this->parent->getPasswordBox( [
547  'var' => $var,
548  'label' => $label,
549  'attribs' => $attribs,
550  'controlName' => $name,
551  'value' => $value,
552  'help' => $helpData
553  ] );
554  }
555 
565  public function getCheckBox( $var, $label, $attribs = [], $helpData = "" ) {
566  $name = $this->getName() . '_' . $var;
567  $value = $this->getVar( $var );
568 
569  return $this->parent->getCheckBox( [
570  'var' => $var,
571  'label' => $label,
572  'attribs' => $attribs,
573  'controlName' => $name,
574  'value' => $value,
575  'help' => $helpData
576  ] );
577  }
578 
591  public function getRadioSet( $params ) {
592  $params['controlName'] = $this->getName() . '_' . $params['var'];
593  $params['value'] = $this->getVar( $params['var'] );
594 
595  return $this->parent->getRadioSet( $params );
596  }
597 
605  public function setVarsFromRequest( $varNames ) {
606  return $this->parent->setVarsFromRequest( $varNames, $this->getName() . '_' );
607  }
608 
619  public function needsUpgrade() {
620  $status = $this->getConnection();
621  if ( !$status->isOK() ) {
622  return false;
623  }
624 
625  try {
626  $this->db->selectDB( $this->getVar( 'wgDBname' ) );
627  } catch ( DBConnectionError $e ) {
628  // Don't catch DBConnectionError
629  throw $e;
630  } catch ( DBExpectedError $e ) {
631  return false;
632  }
633 
634  return $this->db->tableExists( 'cur', __METHOD__ ) ||
635  $this->db->tableExists( 'revision', __METHOD__ );
636  }
637 
643  public function getInstallUserBox() {
644  return Html::openElement( 'fieldset' ) .
645  Html::element( 'legend', [], wfMessage( 'config-db-install-account' )->text() ) .
646  $this->getTextBox(
647  '_InstallUser',
648  'config-db-username',
649  [ 'dir' => 'ltr' ],
650  $this->parent->getHelpBox( 'config-db-install-username' )
651  ) .
652  $this->getPasswordBox(
653  '_InstallPassword',
654  'config-db-password',
655  [ 'dir' => 'ltr' ],
656  $this->parent->getHelpBox( 'config-db-install-password' )
657  ) .
658  Html::closeElement( 'fieldset' );
659  }
660 
665  public function submitInstallUserBox() {
666  $this->setVarsFromRequest( [ '_InstallUser', '_InstallPassword' ] );
667 
668  return Status::newGood();
669  }
670 
678  public function getWebUserBox( $noCreateMsg = false ) {
679  $wrapperStyle = $this->getVar( '_SameAccount' ) ? 'display: none' : '';
680  $s = Html::openElement( 'fieldset' ) .
681  Html::element( 'legend', [], wfMessage( 'config-db-web-account' )->text() ) .
682  $this->getCheckBox(
683  '_SameAccount', 'config-db-web-account-same',
684  [ 'class' => 'hideShowRadio', 'rel' => 'dbOtherAccount' ]
685  ) .
686  Html::openElement( 'div', [ 'id' => 'dbOtherAccount', 'style' => $wrapperStyle ] ) .
687  $this->getTextBox( 'wgDBuser', 'config-db-username' ) .
688  $this->getPasswordBox( 'wgDBpassword', 'config-db-password' ) .
689  $this->parent->getHelpBox( 'config-db-web-help' );
690  if ( $noCreateMsg ) {
691  $s .= $this->parent->getWarningBox( wfMessage( $noCreateMsg )->plain() );
692  } else {
693  $s .= $this->getCheckBox( '_CreateDBAccount', 'config-db-web-create' );
694  }
695  $s .= Html::closeElement( 'div' ) . Html::closeElement( 'fieldset' );
696 
697  return $s;
698  }
699 
705  public function submitWebUserBox() {
706  $this->setVarsFromRequest(
707  [ 'wgDBuser', 'wgDBpassword', '_SameAccount', '_CreateDBAccount' ]
708  );
709 
710  if ( $this->getVar( '_SameAccount' ) ) {
711  $this->setVar( 'wgDBuser', $this->getVar( '_InstallUser' ) );
712  $this->setVar( 'wgDBpassword', $this->getVar( '_InstallPassword' ) );
713  }
714 
715  if ( $this->getVar( '_CreateDBAccount' ) && strval( $this->getVar( 'wgDBpassword' ) ) == '' ) {
716  return Status::newFatal( 'config-db-password-empty', $this->getVar( 'wgDBuser' ) );
717  }
718 
719  return Status::newGood();
720  }
721 
727  public function populateInterwikiTable() {
728  $status = $this->getConnection();
729  if ( !$status->isOK() ) {
730  return $status;
731  }
732  $this->db->selectDB( $this->getVar( 'wgDBname' ) );
733 
734  if ( $this->db->selectRow( 'interwiki', '1', [], __METHOD__ ) ) {
735  $status->warning( 'config-install-interwiki-exists' );
736 
737  return $status;
738  }
739  global $IP;
740  Wikimedia\suppressWarnings();
741  $rows = file( "$IP/maintenance/interwiki.list",
742  FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES );
743  Wikimedia\restoreWarnings();
744  $interwikis = [];
745  if ( !$rows ) {
746  return Status::newFatal( 'config-install-interwiki-list' );
747  }
748  foreach ( $rows as $row ) {
749  $row = preg_replace( '/^\s*([^#]*?)\s*(#.*)?$/', '\\1', $row ); // strip comments - whee
750  if ( $row == "" ) {
751  continue;
752  }
753  $row .= "|";
754  $interwikis[] = array_combine(
755  [ 'iw_prefix', 'iw_url', 'iw_local', 'iw_api', 'iw_wikiid' ],
756  explode( '|', $row )
757  );
758  }
759  $this->db->insert( 'interwiki', $interwikis, __METHOD__ );
760 
761  return Status::newGood();
762  }
763 
764  public function outputHandler( $string ) {
765  return htmlspecialchars( $string );
766  }
767 }
do that in ParserLimitReportFormat instead use this to modify the parameters of the image all existing parser cache entries will be invalid To avoid you ll need to handle that somehow(e.g. with the RejectParserCacheValue hook) because MediaWiki won 't do it for you. & $defaults also a ContextSource after deleting those rows but within the same transaction $rows
Definition: hooks.txt:2621
static element( $element, $attribs=[], $contents='')
Identical to rawElement(), but HTML-escapes $contents (like Xml::element()).
Definition: Html.php:231
either a plain
Definition: hooks.txt:2033
$IP
Definition: WebStart.php:41
null means default in associative array with keys and values unescaped Should be merged with default with a value of false meaning to suppress the attribute in associative array with keys and values unescaped noclasses & $ret
Definition: hooks.txt:1972
Apache License January AND DISTRIBUTION Definitions License shall mean the terms and conditions for use
__construct( $parent)
Construct and initialise parent.
div flags Integer display flags(NO_ACTION_LINK, NO_EXTRA_USER_LINKS) 'LogException' returning false will NOT prevent logging $e
Definition: hooks.txt:2147
preUpgrade()
Allow DB installers a chance to make checks before upgrade.
preInstall()
Allow DB installers a chance to make last-minute changes before installation occurs.
needsUpgrade()
Determine whether an existing installation of MediaWiki is present in the configured administrative c...
submitSettingsForm()
Set variables based on the request array, assuming it was submitted via the form return by getSetting...
getLocalSettings()
Get the DBMS-specific options for LocalSettings.php generation.
array $globalNames
Array of MW configuration globals this class uses.
static openElement( $element, $attribs=[])
Identical to rawElement(), but has no third parameter and omits the end tag (and the self-closing &#39;/&#39;...
Definition: Html.php:251
$value
getSqlFilePath( $db, $filename)
Return a path to the DBMS-specific SQL file if it exists, otherwise default SQL file.
doUpgrade()
Perform database upgrades.
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 MediaWikiServices
Definition: injection.txt:23
createTables()
Create database tables from scratch.
getTextBox( $var, $label, $attribs=[], $helpData="")
Get a labelled text box to configure a local variable.
This list may contain false positives That usually means there is additional text with links below the first Each row contains links to the first and second as well as the first line of the second redirect text
const DBO_DDLMODE
Definition: defines.php:16
getConnection()
Connect to the database using the administrative user/password currently defined in the session...
static newFatal( $message)
Factory function for fatal errors.
Definition: StatusValue.php:68
Status::newGood()` to allow deletion, and then `return false` from the hook function. Ensure you consume the 'ChangeTagAfterDelete' hook to carry out custom deletion actions. $tag:name of the tag $user:user initiating the action & $status:Status object. See above. 'ChangeTagsListActive':Allows you to nominate which of the tags your extension uses are in active use. & $tags:list of all active tags. Append to this array. 'ChangeTagsAfterUpdateTags':Called after tags have been updated with the ChangeTags::updateTags function. Params:$addedTags:tags effectively added in the update $removedTags:tags effectively removed in the update $prevTags:tags that were present prior to the update $rc_id:recentchanges table id $rev_id:revision table id $log_id:logging table id $params:tag params $rc:RecentChange being tagged when the tagging accompanies the action, or null $user:User who performed the tagging when the tagging is subsequent to the action, or null 'ChangeTagsAllowedAdd':Called when checking if a user can add tags to a change. & $allowedTags:List of all the tags the user is allowed to add. Any tags the user wants to add( $addTags) that are not in this array will cause it to fail. You may add or remove tags to this array as required. $addTags:List of tags user intends to add. $user:User who is adding the tags. 'ChangeUserGroups':Called before user groups are changed. $performer:The User who will perform the change $user:The User whose groups will be changed & $add:The groups that will be added & $remove:The groups that will be removed 'Collation::factory':Called if $wgCategoryCollation is an unknown collation. $collationName:Name of the collation in question & $collationObject:Null. Replace with a subclass of the Collation class that implements the collation given in $collationName. 'ConfirmEmailComplete':Called after a user 's email has been confirmed successfully. $user:user(object) whose email is being confirmed 'ContentAlterParserOutput':Modify parser output for a given content object. Called by Content::getParserOutput after parsing has finished. Can be used for changes that depend on the result of the parsing but have to be done before LinksUpdate is called(such as adding tracking categories based on the rendered HTML). $content:The Content to render $title:Title of the page, as context $parserOutput:ParserOutput to manipulate 'ContentGetParserOutput':Customize parser output for a given content object, called by AbstractContent::getParserOutput. May be used to override the normal model-specific rendering of page content. $content:The Content to render $title:Title of the page, as context $revId:The revision ID, as context $options:ParserOptions for rendering. To avoid confusing the parser cache, the output can only depend on parameters provided to this hook function, not on global state. $generateHtml:boolean, indicating whether full HTML should be generated. If false, generation of HTML may be skipped, but other information should still be present in the ParserOutput object. & $output:ParserOutput, to manipulate or replace 'ContentHandlerDefaultModelFor':Called when the default content model is determined for a given title. May be used to assign a different model for that title. $title:the Title in question & $model:the model name. Use with CONTENT_MODEL_XXX constants. 'ContentHandlerForModelID':Called when a ContentHandler is requested for a given content model name, but no entry for that model exists in $wgContentHandlers. Note:if your extension implements additional models via this hook, please use GetContentModels hook to make them known to core. $modeName:the requested content model name & $handler:set this to a ContentHandler object, if desired. 'ContentModelCanBeUsedOn':Called to determine whether that content model can be used on a given page. This is especially useful to prevent some content models to be used in some special location. $contentModel:ID of the content model in question $title:the Title in question. & $ok:Output parameter, whether it is OK to use $contentModel on $title. Handler functions that modify $ok should generally return false to prevent further hooks from further modifying $ok. 'ContribsPager::getQueryInfo':Before the contributions query is about to run & $pager:Pager object for contributions & $queryInfo:The query for the contribs Pager 'ContribsPager::reallyDoQuery':Called before really executing the query for My Contributions & $data:an array of results of all contribs queries $pager:The ContribsPager object hooked into $offset:Index offset, inclusive $limit:Exact query limit $descending:Query direction, false for ascending, true for descending 'ContributionsLineEnding':Called before a contributions HTML line is finished $page:SpecialPage object for contributions & $ret:the HTML line $row:the DB row for this line & $classes:the classes to add to the surrounding< li > & $attribs:associative array of other HTML attributes for the< li > element. Currently only data attributes reserved to MediaWiki are allowed(see Sanitizer::isReservedDataAttribute). 'ContributionsToolLinks':Change tool links above Special:Contributions $id:User identifier $title:User page title & $tools:Array of tool links $specialPage:SpecialPage instance for context and services. Can be either SpecialContributions or DeletedContributionsPage. Extensions should type hint against a generic SpecialPage though. 'ConvertContent':Called by AbstractContent::convert when a conversion to another content model is requested. Handler functions that modify $result should generally return false to disable further attempts at conversion. $content:The Content object to be converted. $toModel:The ID of the content model to convert to. $lossy:boolean indicating whether lossy conversion is allowed. & $result:Output parameter, in case the handler function wants to provide a converted Content object. Note that $result->getContentModel() must return $toModel. 'ContentSecurityPolicyDefaultSource':Modify the allowed CSP load sources. This affects all directives except for the script directive. If you want to add a script source, see ContentSecurityPolicyScriptSource hook. & $defaultSrc:Array of Content-Security-Policy allowed sources $policyConfig:Current configuration for the Content-Security-Policy header $mode:ContentSecurityPolicy::REPORT_ONLY_MODE or ContentSecurityPolicy::FULL_MODE depending on type of header 'ContentSecurityPolicyDirectives':Modify the content security policy directives. Use this only if ContentSecurityPolicyDefaultSource and ContentSecurityPolicyScriptSource do not meet your needs. & $directives:Array of CSP directives $policyConfig:Current configuration for the CSP header $mode:ContentSecurityPolicy::REPORT_ONLY_MODE or ContentSecurityPolicy::FULL_MODE depending on type of header 'ContentSecurityPolicyScriptSource':Modify the allowed CSP script sources. Note that you also have to use ContentSecurityPolicyDefaultSource if you want non-script sources to be loaded from whatever you add. & $scriptSrc:Array of CSP directives $policyConfig:Current configuration for the CSP header $mode:ContentSecurityPolicy::REPORT_ONLY_MODE or ContentSecurityPolicy::FULL_MODE depending on type of header 'CustomEditor':When invoking the page editor Return true to allow the normal editor to be used, or false if implementing a custom editor, e.g. for a special namespace, etc. $article:Article being edited $user:User performing the edit 'DeletedContribsPager::reallyDoQuery':Called before really executing the query for Special:DeletedContributions Similar to ContribsPager::reallyDoQuery & $data:an array of results of all contribs queries $pager:The DeletedContribsPager object hooked into $offset:Index offset, inclusive $limit:Exact query limit $descending:Query direction, false for ascending, true for descending 'DeletedContributionsLineEnding':Called before a DeletedContributions HTML line is finished. Similar to ContributionsLineEnding $page:SpecialPage object for DeletedContributions & $ret:the HTML line $row:the DB row for this line & $classes:the classes to add to the surrounding< li > & $attribs:associative array of other HTML attributes for the< li > element. Currently only data attributes reserved to MediaWiki are allowed(see Sanitizer::isReservedDataAttribute). 'DeleteUnknownPreferences':Called by the cleanupPreferences.php maintenance script to build a WHERE clause with which to delete preferences that are not known about. This hook is used by extensions that have dynamically-named preferences that should not be deleted in the usual cleanup process. For example, the Gadgets extension creates preferences prefixed with 'gadget-', and so anything with that prefix is excluded from the deletion. &where:An array that will be passed as the $cond parameter to IDatabase::select() to determine what will be deleted from the user_properties table. $db:The IDatabase object, useful for accessing $db->buildLike() etc. 'DifferenceEngineAfterLoadNewText':called in DifferenceEngine::loadNewText() after the new revision 's content has been loaded into the class member variable $differenceEngine->mNewContent but before returning true from this function. $differenceEngine:DifferenceEngine object 'DifferenceEngineLoadTextAfterNewContentIsLoaded':called in DifferenceEngine::loadText() after the new revision 's content has been loaded into the class member variable $differenceEngine->mNewContent but before checking if the variable 's value is null. This hook can be used to inject content into said class member variable. $differenceEngine:DifferenceEngine object 'DifferenceEngineMarkPatrolledLink':Allows extensions to change the "mark as patrolled" link which is shown both on the diff header as well as on the bottom of a page, usually wrapped in a span element which has class="patrollink". $differenceEngine:DifferenceEngine object & $markAsPatrolledLink:The "mark as patrolled" link HTML(string) $rcid:Recent change ID(rc_id) for this change(int) 'DifferenceEngineMarkPatrolledRCID':Allows extensions to possibly change the rcid parameter. For example the rcid might be set to zero due to the user being the same as the performer of the change but an extension might still want to show it under certain conditions. & $rcid:rc_id(int) of the change or 0 $differenceEngine:DifferenceEngine object $change:RecentChange object $user:User object representing the current user 'DifferenceEngineNewHeader':Allows extensions to change the $newHeader variable, which contains information about the new revision, such as the revision 's author, whether the revision was marked as a minor edit or not, etc. $differenceEngine:DifferenceEngine object & $newHeader:The string containing the various #mw-diff-otitle[1-5] divs, which include things like revision author info, revision comment, RevisionDelete link and more $formattedRevisionTools:Array containing revision tools, some of which may have been injected with the DiffRevisionTools hook $nextlink:String containing the link to the next revision(if any) $status
Definition: hooks.txt:1244
getSchemaVars()
Override this to provide DBMS-specific schema variables, to be substituted into tables.sql and other schema files.
checkPrerequisites()
Checks for installation prerequisites other than those checked by isCompiled()
either a unescaped string or a HtmlArmor object after in associative array form externallinks including delete and has completed for all link tables whether this was an auto creation use $formDescriptor instead default is conds Array Extra conditions for the No matching items in log is displayed if loglist is empty msgKey Array If you want a nice box with a set this to the key of the message First element is the message additional optional elements are parameters for the key that are processed with wfMessage() -> params() ->parseAsBlock() - offset Set to overwrite offset parameter in $wgRequest set to '' to unset offset - wrap String Wrap the message in html(usually something like "&lt
submitWebUserBox()
Submit the form from getWebUserBox().
getName()
Return the internal name, e.g.
Using a hook running we can avoid having all this option specific stuff in our mainline code Using the function 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:91
setupSchemaVars()
Set appropriate schema variables in the current database connection.
static configuration should be added through ResourceLoaderGetConfigVars instead can be used to get the real title e g db for database replication lag or jobqueue for job queue size converted to pseudo seconds It is possible to add more fields and they will be returned to the user in the API response after the basic globals have been set but before ordinary actions take place or wrap services the preferred way to define a new service is the $wgServiceWiringFiles array $services
Definition: hooks.txt:2205
getConnectForm()
Get HTML for a web form that configures this database.
getSchemaPath( $db)
Return a path to the DBMS-specific schema file, otherwise default to tables.sql.
getPasswordBox( $var, $label, $attribs=[], $helpData="")
Get a labelled password box to configure a local variable.
getReadableName()
Get the internationalised name for this DBMS.
static newGood( $value=null)
Factory function for good results.
Definition: StatusValue.php:81
createExtensionTables()
Create the tables for each extension the user enabled.
getInternalDefaults()
Get a name=>value map of internal variables used during installation.
$params
static closeElement( $element)
Returns "</$element>".
Definition: Html.php:315
null means default in associative array with keys and values unescaped Should be merged with default with a value of false meaning to suppress the attribute in associative array with keys and values unescaped noclasses just before the function returns a value If you return an< a > element with HTML attributes $attribs and contents $html will be returned If you return $ret will be returned and may include noclasses after processing & $attribs
Definition: hooks.txt:1972
this hook is for auditing only or null if authentication failed before getting that far or null if we can t even determine that When $user is not null
Definition: hooks.txt:767
getGlobalDefaults()
Get a name=>value map of MW configuration globals for the default values.
getWebUserBox( $noCreateMsg=false)
Get a standard web-user fieldset.
$GLOBALS['IP']
submitConnectForm()
Set variables based on the request array, assuming it was submitted via the form returned by getConne...
static string $minimumVersion
Set by subclasses.
getUpdateKeysPath( $db)
Return a path to the DBMS-specific update key file, otherwise default to update-keys.sql.
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
Definition: distributors.txt:9
submitInstallUserBox()
Submit a standard install user fieldset.
const DBO_TRX
Definition: defines.php:12
getInstallUserBox()
Get a standard install-user fieldset.
getVar( $var, $default=null)
Get a variable, taking local defaults into account.
getText()
Get the text to display when reporting the error on the command line.
static meetsMinimumRequirement( $serverVersion)
Whether the provided version meets the necessary requirements for this type.
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:35
getType()
Get the type of the DBMS, as it appears in $wgDBtype.
Database $db
The database connection.
getRadioSet( $params)
Get a set of labelled radio buttons.
setupDatabase()
Create the database and return a Status object indicating success or failure.
stepApplySourceFile( $sourceFileMethod, $stepName, $archiveTableMustNotExist=false)
Apply a SQL source file to the database as part of running an installation step.
setVar( $name, $value)
Convenience alias for $this->parent->setVar()
Base class for DBMS-specific installation helper classes.
static newForDB(IMaintainableDatabase $db, $shared=false, Maintenance $maintenance=null)
openConnection()
Open a connection to the database using the administrative user/password currently defined in the ses...
Allows to change the fields on the form that will be generated $name
Definition: hooks.txt:271
insertUpdateKeys()
Insert update keys into table to prevent running unneded updates.
populateInterwikiTable()
Common function for databases that don&#39;t understand the MySQLish syntax of interwiki.sql.
setVarsFromRequest( $varNames)
Convenience function to set variables based on form data.
WebInstaller $parent
The Installer object.
getGlobalNames()
Get an array of MW configuration globals that will be configured by this class.
getCheckBox( $var, $label, $attribs=[], $helpData="")
Get a labelled checkbox to configure a local boolean variable.
getSettingsForm()
Get HTML for a web form that retrieves settings used for installation.
static checkExtension( $name)
Convenience function.
static string $notMinimumVersionMessage
Set by subclasses.
enableLB()
Set up LBFactory so that wfGetDB() etc.
Base class for the more common types of database errors.
array $internalDefaults
Internal variables for installation.