Drupal-在确认页面上进行取消链接一个按钮

Question

当我按某些内容上的删除按钮时，我将被带到确认页面。删除选项是一个按钮，而取消选项是链接。看起来很奇怪。我发现Drupal中有一个Form_Confirm（）函数，但我不明白如何使用它。有人知道如何将取消链接放入按钮吗？

Answer 1

或使用no JavaScript（并用preg_match（）替换Eregi（）...

  if ( $form['#theme'] == 'confirm_form' ) {
    $no = $form['actions']['cancel']['#value'];
    if (!is_null($no)) {
      // Get the text to put on the cancel button
      $value = preg_replace('/(<\/?)(\w+)([^>]*>)/e', '', $no);
      preg_match('/href\s*=\s*\"([^\"]+)\"/', $no, $href);
      $form['actions']['cancel']['#value'] = '';
      $form['href']=array(
        '#type'=>'value',
        '#value'=>$href[1],
      );

      // Add our own button
      $form['actions']['docancel'] = array(
        '#type' => 'submit',
        '#name' => 'cancel',
        '#submit' => array('mymodule_confirm_form_cancel'),
        '#value' => $value,
      );

    }
  }

和

function mymodule_confirm_form_cancel(&$form,&$form_state) {
  $href=$form['href']['#value'];
  if ( !is_null($href) ) {
    $form['#redirect']=$href;
  }
}

Answer 2

取消链接看起来像链接的原因是因为它是链接 <a>, ，而确认按钮是表单提交元素 <input type="submut>.

如果您想制作取消链接，看起来像一个提交按钮，可以使用纯CSS进行操作。

Answer 3

使用hook_form_alter（），请尝试以下操作：

if($form['#theme'] == 'confirm_form') {
    $no = $form['actions']['cancel']['#value'];
    if (!is_null($no)) {
      // Get the text to put on the cancel button
      $value = preg_replace('/(<\/?)(\w+)([^>]*>)/e', '', $no);
      eregi('m|href\s*=\s*\"([^\"]+)\"|ig', $no, $href);

      $form['actions']['cancel']['#value'] = '';

      // Add our own button
      $form['actions']['docancel'] = array(
        '#type' => 'button',
        '#button_type' => 'reset',
        '#name' => 'cancel',
        '#submit' => 'false',
        '#value' => $value,
        '#attributes' => array(
          'onclick' => '$(this).parents("form").attr("allowSubmission", "false");window.location = "'.$href[1].'";',
        ),
      );
      // Prevent the form submission via our button
      $form['#attributes']['onsubmit'] = 'if ($(this).attr("allowSubmission") == "false") return false;';
    }
  }

Answer 4

对于Drupal 7，我使用：

/**
 * Implements hook_form_alter().
 */
function yourmodule_form_alter(&$form, $form_state, $form_id) {
  // Change 'cancel' link to 'cancel' button. 
  if ( $form['#theme'] == 'confirm_form' ) {
    if ($form['actions']['cancel']['#type'] == 'link') {
      $title = $form['actions']['cancel']['#title'];
      $href = $form['actions']['cancel']['#href'];
      if (!is_null($title) and !is_null($href)) {
        // Disable Cancel link.
        $form['actions']['cancel']['#title'] = '';
        // Add our own Cancel button.
        $form['actions']['docancel'] = array(
          '#type' => 'submit',
          '#name' => 'cancel',
          '#submit' => array('yourmodule_confirm_form_cancel'),
          '#value' => $title,
        );
      }
    }
  }
}

/**
 * Redirect to previous page after confirm form cancel().
 */
function yourmodule_confirm_form_cancel(&$form, &$form_state) {
  $href = $form['actions']['cancel']['#href'];
  if (!is_null($href)) {
    $form_state['redirect'] = $href;
  }
}

Drupal 8也报道了问题，但Drupal Core团队无意以核心解决该问题。请参阅Drupal支持请求 更改确认表取消链接到按钮.

最好的问候，巴索。