163 lines
4.3 KiB
PHP
163 lines
4.3 KiB
PHP
<?php
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/**
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*
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*/
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/**
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*
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*/
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class WatchedItem {
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var $mTitle, $mUser;
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/**
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* Create a WatchedItem object with the given user and title
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* @todo document
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* @access private
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*/
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static function fromUserTitle( $user, $title ) {
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$wl = new WatchedItem;
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$wl->mUser = $user;
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$wl->mTitle = $title;
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$wl->id = $user->getId();
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# Patch (also) for email notification on page changes T.Gries/M.Arndt 11.09.2004
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# TG patch: here we do not consider pages and their talk pages equivalent - why should we ?
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# The change results in talk-pages not automatically included in watchlists, when their parent page is included
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# $wl->ns = $title->getNamespace() & ~1;
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$wl->ns = $title->getNamespace();
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$wl->ti = $title->getDBkey();
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return $wl;
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}
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/**
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* Is mTitle being watched by mUser?
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*/
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function isWatched() {
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# Pages and their talk pages are considered equivalent for watching;
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# remember that talk namespaces are numbered as page namespace+1.
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$fname = 'WatchedItem::isWatched';
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$dbr = wfGetDB( DB_SLAVE );
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$res = $dbr->select( 'watchlist', 1, array( 'wl_user' => $this->id, 'wl_namespace' => $this->ns,
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'wl_title' => $this->ti ), $fname );
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$iswatched = ($dbr->numRows( $res ) > 0) ? 1 : 0;
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return $iswatched;
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}
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/**
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* @todo document
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*/
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function addWatch() {
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$fname = 'WatchedItem::addWatch';
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wfProfileIn( $fname );
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// Use INSERT IGNORE to avoid overwriting the notification timestamp
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// if there's already an entry for this page
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$dbw = wfGetDB( DB_MASTER );
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$dbw->insert( 'watchlist',
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array(
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'wl_user' => $this->id,
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'wl_namespace' => ($this->ns & ~1),
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'wl_title' => $this->ti,
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'wl_notificationtimestamp' => NULL
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), $fname, 'IGNORE' );
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// Every single watched page needs now to be listed in watchlist;
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// namespace:page and namespace_talk:page need separate entries:
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$dbw->insert( 'watchlist',
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array(
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'wl_user' => $this->id,
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'wl_namespace' => ($this->ns | 1 ),
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'wl_title' => $this->ti,
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'wl_notificationtimestamp' => NULL
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), $fname, 'IGNORE' );
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wfProfileOut( $fname );
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return true;
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}
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function removeWatch() {
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$fname = 'WatchedItem::removeWatch';
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$success = false;
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$dbw = wfGetDB( DB_MASTER );
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$dbw->delete( 'watchlist',
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array(
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'wl_user' => $this->id,
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'wl_namespace' => ($this->ns & ~1),
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'wl_title' => $this->ti
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), $fname
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);
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if ( $dbw->affectedRows() ) {
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$success = true;
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}
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# the following code compensates the new behaviour, introduced by the
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# enotif patch, that every single watched page needs now to be listed
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# in watchlist namespace:page and namespace_talk:page had separate
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# entries: clear them
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$dbw->delete( 'watchlist',
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array(
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'wl_user' => $this->id,
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'wl_namespace' => ($this->ns | 1),
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'wl_title' => $this->ti
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), $fname
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);
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if ( $dbw->affectedRows() ) {
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$success = true;
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}
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return $success;
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}
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/**
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* Check if the given title already is watched by the user, and if so
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* add watches on a new title. To be used for page renames and such.
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*
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* @param Title $ot Page title to duplicate entries from, if present
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* @param Title $nt Page title to add watches on
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*/
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static function duplicateEntries( $ot, $nt ) {
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WatchedItem::doDuplicateEntries( $ot->getSubjectPage(), $nt->getSubjectPage() );
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WatchedItem::doDuplicateEntries( $ot->getTalkPage(), $nt->getTalkPage() );
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}
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private static function doDuplicateEntries( $ot, $nt ) {
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$fname = "WatchedItem::duplicateEntries";
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$oldnamespace = $ot->getNamespace();
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$newnamespace = $nt->getNamespace();
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$oldtitle = $ot->getDBkey();
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$newtitle = $nt->getDBkey();
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$dbw = wfGetDB( DB_MASTER );
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$res = $dbw->select( 'watchlist', 'wl_user',
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array( 'wl_namespace' => $oldnamespace, 'wl_title' => $oldtitle ),
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$fname, 'FOR UPDATE'
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);
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# Construct array to replace into the watchlist
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$values = array();
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while ( $s = $dbw->fetchObject( $res ) ) {
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$values[] = array(
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'wl_user' => $s->wl_user,
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'wl_namespace' => $newnamespace,
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'wl_title' => $newtitle
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);
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}
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$dbw->freeResult( $res );
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if( empty( $values ) ) {
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// Nothing to do
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return true;
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}
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# Perform replace
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# Note that multi-row replace is very efficient for MySQL but may be inefficient for
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# some other DBMSes, mostly due to poor simulation by us
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$dbw->replace( 'watchlist', array(array( 'wl_user', 'wl_namespace', 'wl_title')), $values, $fname );
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return true;
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}
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}
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?>
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