public function render()
 {
     $question = $this->question;
     $viewer = $this->getViewer();
     $authors = mpull($question->getAnswers(), null, 'getAuthorPHID');
     if (isset($authors[$viewer->getPHID()])) {
         $view = id(new PHUIInfoView())->setSeverity(PHUIInfoView::SEVERITY_NOTICE)->setTitle(pht('Already Answered'))->appendChild(pht('You have already answered this question. You can not answer ' . 'twice, but you can edit your existing answer.'));
         return phutil_tag_div('ponder-add-answer-view', $view);
     }
     $info_panel = null;
     if ($question->getStatus() != PonderQuestionStatus::STATUS_OPEN) {
         $info_panel = id(new PHUIInfoView())->setSeverity(PHUIInfoView::SEVERITY_NOTICE)->appendChild(pht('This question has been marked as closed,
          but you can still leave a new answer.'));
     }
     $box_style = null;
     $header = id(new PHUIHeaderView())->setHeader(pht('New Answer'))->addClass('ponder-add-answer-header');
     $form = new AphrontFormView();
     $form->setViewer($viewer)->setAction($this->actionURI)->setWorkflow(true)->addHiddenInput('question_id', $question->getID())->appendChild(id(new PhabricatorRemarkupControl())->setName('answer')->setLabel(pht('Answer'))->setError(true)->setID('answer-content')->setViewer($viewer))->appendChild(id(new AphrontFormSubmitControl())->setValue(pht('Add Answer')));
     if (!$viewer->isLoggedIn()) {
         $login_href = id(new PhutilURI('/auth/start/'))->setQueryParam('next', '/Q' . $question->getID());
         $form = id(new PHUIFormLayoutView())->addClass('login-to-participate')->appendChild(id(new PHUIButtonView())->setTag('a')->setText(pht('Login to Answer'))->setHref((string) $login_href));
     }
     $box = id(new PHUIObjectBoxView())->appendChild($form)->setHeaderText('Answer')->addClass('ponder-add-answer-view');
     if ($info_panel) {
         $box->setInfoView($info_panel);
     }
     return array($header, $box);
 }