22b599e06c
$wgDeferredUpdateList[] = new HTMLCacheUpdate( $title, "sometable" ); I kept b/c with $wgDeferredUpdateList for now, but seeing as only 3 exts in svn use it (FileSearch, FlaggedRevs and WikiScripts), I'd like to deprecate it pretty soon :)
83 lines
2 KiB
PHP
83 lines
2 KiB
PHP
<?php
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/**
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* Interface that deferrable updates should implement. Basically required so we
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* can validate input on DeferredUpdates::addUpdate()
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*/
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interface DeferrableUpdate {
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/**
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* Perform the actual work
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*/
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function doUpdate();
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}
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/**
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* Class for mananging the deferred updates.
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*/
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class DeferredUpdates {
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/**
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* Store of updates to be deferred until the end of the request.
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*/
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private static $updates = array();
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/**
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* Add an update to the deferred list
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* @param $update DeferrableUpdate Some object that implements doUpdate()
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*/
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public static function addUpdate( DeferrableUpdate $update ) {
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array_push( self::$updates, $update );
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}
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/**
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* HTMLCacheUpdates are the most common deferred update people use. This
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* is a shortcut method for that.
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* @see HTMLCacheUpdate::__construct()
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*/
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public static function addHTMLCacheUpdate( $title, $table ) {
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self::addUpdate( new HTMLCacheUpdate( $title, $table ) );
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}
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/**
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* Do any deferred updates and clear the list
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*
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* @param $commit String: set to 'commit' to commit after every update to
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* prevent lock contention
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*/
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public static function doUpdates( $commit = '' ) {
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global $wgDeferredUpdateList;
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wfProfileIn( __METHOD__ );
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$updates = array_merge( $wgDeferredUpdateList, self::$updates );
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// No need to get master connections in case of empty updates array
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if ( !count( $updates ) ) {
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wfProfileOut( __METHOD__ );
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return;
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}
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$doCommit = $commit == 'commit';
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if ( $doCommit ) {
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$dbw = wfGetDB( DB_MASTER );
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}
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foreach ( $updates as $update ) {
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$update->doUpdate();
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if ( $doCommit && $dbw->trxLevel() ) {
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$dbw->commit();
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}
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}
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self::clearPendingUpdates();
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wfProfileOut( __METHOD__ );
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}
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/**
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* Clear all pending updates without performing them. Generally, you don't
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* want or need to call this. Unit tests need it though.
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*/
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public static function clearPendingUpdates() {
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global $wgDeferredUpdateList;
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$wgDeferredUpdateList = self::$updates = array();
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}
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}
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