HTMLForm: Use <button> and allow differing label and value
[lhc/web/wiklou.git] / includes / specials / SpecialActiveusers.php
index 2c00175..70c7a8b 100644 (file)
@@ -212,10 +212,20 @@ class ActiveUsersPager extends UsersPager {
                $out .= Xml::fieldset( $this->msg( 'activeusers' )->text() ) . "\n";
                $out .= Html::hidden( 'title', $self->getPrefixedDBkey() ) . $limit . "\n";
 
-               # Username field
-               $out .= Xml::inputLabel( $this->msg( 'activeusers-from' )->text(),
-                       'username', 'offset', 20, $this->requestedUser,
-                       array( 'class' => 'mw-ui-input-inline', 'tabindex' => 1 ) ) . '<br />';
+               # Username field (with autocompletion support)
+               $this->getOutput()->addModules( 'mediawiki.userSuggest' );
+               $out .= Xml::inputLabel(
+                       $this->msg( 'activeusers-from' )->text(),
+                       'username',
+                       'offset',
+                       20,
+                       $this->requestedUser,
+                       array(
+                               'class' => 'mw-ui-input-inline mw-autocomplete-user',
+                               'tabindex' => 1,
+                               'autofocus' => $this->requestedUser === '',
+                       )
+               ) . '<br />';
 
                $out .= Xml::checkLabel( $this->msg( 'activeusers-hidebots' )->text(),
                        'hidebots', 'hidebots', $this->opts->getValue( 'hidebots' ), array( 'tabindex' => 2 ) );
@@ -230,7 +240,7 @@ class ActiveUsersPager extends UsersPager {
 
                # Submit button and form bottom
                $out .= Xml::submitButton(
-                       $this->msg( 'allpagessubmit' )->text(),
+                       $this->msg( 'activeusers-submit' )->text(),
                        array( 'tabindex' => 4 )
                ) . "\n";
                $out .= Xml::closeElement( 'fieldset' );
@@ -267,12 +277,24 @@ class SpecialActiveUsers extends SpecialPage {
                $out->wrapWikiMsg( "<div class='mw-activeusers-intro'>\n$1\n</div>",
                        array( 'activeusers-intro', $this->getLanguage()->formatNum( $days ) ) );
 
-               // Occasionally merge in new updates
-               $seconds = min( self::mergeActiveUsers( 300, $days ), $days * 86400 );
-               if ( $seconds > 0 ) {
-                       // Mention the level of staleness
-                       $out->addWikiMsg( 'cachedspecial-viewing-cached-ttl',
-                               $this->getLanguage()->formatDuration( $seconds ) );
+               // Mention the level of cache staleness...
+               $dbr = wfGetDB( DB_SLAVE, 'recentchanges' );
+               $rcMax = $dbr->selectField( 'recentchanges', 'MAX(rc_timestamp)' );
+               if ( $rcMax ) {
+                       $cTime = $dbr->selectField( 'querycache_info',
+                               'qci_timestamp',
+                               array( 'qci_type' => 'activeusers' )
+                       );
+                       if ( $cTime ) {
+                               $secondsOld = wfTimestamp( TS_UNIX, $rcMax ) - wfTimestamp( TS_UNIX, $cTime );
+                       } else {
+                               $rcMin = $dbr->selectField( 'recentchanges', 'MIN(rc_timestamp)' );
+                               $secondsOld = time() - wfTimestamp( TS_UNIX, $rcMin );
+                       }
+                       if ( $secondsOld > 0 ) {
+                               $out->addWikiMsg( 'cachedspecial-viewing-cached-ttl',
+                               $this->getLanguage()->formatDuration( $secondsOld ) );
+                       }
                }
 
                $up = new ActiveUsersPager( $this->getContext(), null, $par );
@@ -295,163 +317,6 @@ class SpecialActiveUsers extends SpecialPage {
        protected function getGroupName() {
                return 'users';
        }
+}
 
-       /**
-        * @param int $period Seconds (do updates no more often than this)
-        * @param int $days How many days user must be idle before he is considered inactive
-        * @return int How many seconds old the cache is
-        */
-       public static function mergeActiveUsers( $period, $days ) {
-               $dbr = wfGetDB( DB_SLAVE, 'recentchanges' );
-               $cTime = $dbr->selectField( 'querycache_info',
-                       'qci_timestamp',
-                       array( 'qci_type' => 'activeusers' )
-               );
-
-               if ( !wfReadOnly() ) {
-                       if ( !$cTime || ( time() - wfTimestamp( TS_UNIX, $cTime ) ) > $period ) {
-                               $dbw = wfGetDB( DB_MASTER );
-                               $cond = $cTime
-                                       ? array( 'rc_timestamp > ' . $dbw->addQuotes( $cTime ) )
-                                       : array();
-                               if ( $dbw->estimateRowCount( 'recentchanges', '*', $cond ) <= 10000 ) {
-                                       $window = $days * 86400; // small wiki
-                               } else {
-                                       $window = $period * 2;
-                               }
-                               $cTime = self::doQueryCacheUpdate( $dbw, $days, $window ) ?: $cTime;
-                       }
-               }
-
-               return ( time() -
-                       ( $cTime ? wfTimestamp( TS_UNIX, $cTime ) : $days * 86400 ) );
-       }
-
-       /**
-        * @param IDatabase $dbw Passed in from updateSpecialPages.php
-        * @return void
-        */
-       public static function cacheUpdate( IDatabase $dbw ) {
-               global $wgActiveUserDays;
-
-               self::doQueryCacheUpdate( $dbw, $wgActiveUserDays, $wgActiveUserDays * 86400 );
-       }
-
-       /**
-        * Update the query cache as needed
-        *
-        * @param IDatabase $dbw
-        * @param int $days How many days user must be idle before he is considered inactive
-        * @param int $window Maximum time range of new data to scan (in seconds)
-        * @return int|bool UNIX timestamp the cache is now up-to-date as of (false on error)
-        */
-       protected static function doQueryCacheUpdate( IDatabase $dbw, $days, $window ) {
-               $dbw->startAtomic( __METHOD__ );
-
-               $lockKey = wfWikiID() . '-activeusers';
-               if ( !$dbw->lock( $lockKey, __METHOD__, 1 ) ) {
-                       return false; // exclusive update (avoids duplicate entries)
-               }
-
-               $nowUnix = time();
-               // Get the last-updated timestamp for the cache
-               $cTime = $dbw->selectField( 'querycache_info',
-                       'qci_timestamp',
-                       array( 'qci_type' => 'activeusers' )
-               );
-               $cTimeUnix = $cTime ? wfTimestamp( TS_UNIX, $cTime ) : 1;
-
-               // Pick the date range to fetch from. This is normally from the last
-               // update to till the present time, but has a limited window for sanity.
-               // If the window is limited, multiple runs are need to fully populate it.
-               $sTimestamp = max( $cTimeUnix, $nowUnix - $days * 86400 );
-               $eTimestamp = min( $sTimestamp + $window, $nowUnix );
-
-               // Get all the users active since the last update
-               $res = $dbw->select(
-                       array( 'recentchanges' ),
-                       array( 'rc_user_text', 'lastedittime' => 'MAX(rc_timestamp)' ),
-                       array(
-                               'rc_user > 0', // actual accounts
-                               'rc_type != ' . $dbw->addQuotes( RC_EXTERNAL ), // no wikidata
-                               'rc_log_type IS NULL OR rc_log_type != ' . $dbw->addQuotes( 'newusers' ),
-                               'rc_timestamp >= ' . $dbw->addQuotes( $dbw->timestamp( $sTimestamp ) ),
-                               'rc_timestamp <= ' . $dbw->addQuotes( $dbw->timestamp( $eTimestamp ) )
-                       ),
-                       __METHOD__,
-                       array(
-                               'GROUP BY' => array( 'rc_user_text' ),
-                               'ORDER BY' => 'NULL' // avoid filesort
-                       )
-               );
-               $names = array();
-               foreach ( $res as $row ) {
-                       $names[$row->rc_user_text] = $row->lastedittime;
-               }
-
-               // Rotate out users that have not edited in too long (according to old data set)
-               $dbw->delete( 'querycachetwo',
-                       array(
-                               'qcc_type' => 'activeusers',
-                               'qcc_value < ' . $dbw->addQuotes( $nowUnix - $days * 86400 ) // TS_UNIX
-                       ),
-                       __METHOD__
-               );
-
-               // Find which of the recently active users are already accounted for
-               if ( count( $names ) ) {
-                       $res = $dbw->select( 'querycachetwo',
-                               array( 'user_name' => 'qcc_title' ),
-                               array(
-                                       'qcc_type' => 'activeusers',
-                                       'qcc_namespace' => NS_USER,
-                                       'qcc_title' => array_keys( $names ) ),
-                               __METHOD__,
-                               // See the latest data (ignoring trx snapshot) to avoid
-                               // duplicates if this method was called in a transaction
-                               array( 'LOCK IN SHARE MODE' )
-                       );
-                       foreach ( $res as $row ) {
-                               unset( $names[$row->user_name] );
-                       }
-               }
-
-               // Insert the users that need to be added to the list (which their last edit time
-               if ( count( $names ) ) {
-                       $newRows = array();
-                       foreach ( $names as $name => $lastEditTime ) {
-                               $newRows[] = array(
-                                       'qcc_type' => 'activeusers',
-                                       'qcc_namespace' => NS_USER,
-                                       'qcc_title' => $name,
-                                       'qcc_value' => wfTimestamp( TS_UNIX, $lastEditTime ),
-                                       'qcc_namespacetwo' => 0, // unused
-                                       'qcc_titletwo' => '' // unused
-                               );
-                       }
-                       foreach ( array_chunk( $newRows, 500 ) as $rowBatch ) {
-                               $dbw->insert( 'querycachetwo', $rowBatch, __METHOD__ );
-                               if ( !$dbw->trxLevel() ) {
-                                       wfWaitForSlaves();
-                               }
-                       }
-               }
-
-               // If a transaction was already started, it might have an old
-               // snapshot, so kludge the timestamp range back as needed.
-               $asOfTimestamp = min( $eTimestamp, (int)$dbw->trxTimestamp() );
-
-               // Touch the data freshness timestamp
-               $dbw->replace( 'querycache_info',
-                       array( 'qci_type' ),
-                       array( 'qci_type' => 'activeusers',
-                               'qci_timestamp' => $dbw->timestamp( $asOfTimestamp ) ), // not always $now
-                       __METHOD__
-               );
-
-               $dbw->unlock( $lockKey, __METHOD__ );
-               $dbw->endAtomic( __METHOD__ );
 
-               return $eTimestamp;
-       }
-}