function onSubmit(array $data)
 {
     if (!isset($data['username'])) {
         $this->showCurrentRenames();
         return false;
     }
     $name = User::getCanonicalName($data['username'], 'usable');
     if (!$name) {
         $this->showCurrentRenames();
         return false;
     }
     $out = $this->getOutput();
     $this->renameuserStatus = new GlobalRenameUserStatus($name);
     $names = $this->renameuserStatus->getNames();
     if (!$names) {
         $this->checkCachePurge($name);
         $out->addWikiMsg('centralauth-rename-notinprogress', $name);
         $this->getForm()->displayForm(false);
         $this->showLogExtract($name);
         return true;
     }
     list($oldName, $newName) = $names;
     $statuses = $this->renameuserStatus->getStatuses();
     $this->getForm()->displayForm(false);
     // $newname will always be defined since we check
     // for 0 result rows above
     $caUser = new CentralAuthUser($newName);
     $attached = $caUser->listAttached();
     foreach ($attached as $wiki) {
         // If it's not in the db table, and there is
         // an attached acount, assume it's done.
         if (!isset($statuses[$wiki])) {
             $statuses[$wiki] = 'done';
         }
     }
     ksort($statuses);
     $table = Html::openElement('table', array('class' => 'wikitable sortable'));
     $table .= Html::openElement('tr');
     $table .= Html::element('th', array(), $this->msg('centralauth-rename-table-domain')->text());
     $table .= Html::element('th', array(), $this->msg('centralauth-rename-table-status')->text());
     $table .= Html::closeElement('tr');
     foreach ($statuses as $wiki => $status) {
         $table .= Html::openElement('tr');
         $table .= Html::element('td', array(), WikiMap::getWiki($wiki)->getDisplayName());
         // Messages used: centralauth-rename-table-status-inprogress
         // centralauth-rename-table-status-queued, centralauth-rename-table-status-done
         $table .= Html::rawElement('td', array(), $this->msg("centralauth-rename-table-status-{$status}")->parse());
         $table .= Html::closeElement('tr');
     }
     $table .= Html::closeElement('table');
     $fieldset = Xml::fieldset($this->msg('centralauth-rename-progress-fieldset')->text(), $table);
     $this->showLogExtract($newName);
     $out->addHTML($fieldset);
     return true;
 }