从Drupal6迁移到Drupal7index钩子抛出了一个错误-注意: sport_utils_form_alter()中未定义的form_alter : buttons

Question

我正在从Drupal 6升级到Drupal 7。我在更新后启用了此模块。

下面是我的函数：

function sport_utils_form_alter($form, $form_state, $form_id) {
    if (strpos($form_id, '_node_form') !== FALSE) {
        $form['#validate'][] = 'byu_sport_utils_verify_valid_author';
        $form['#validate'][] = 'byu_sport_utils_remove_first_line_break';

        $form['top_buttons'] = $form['buttons'];
        $form['top_buttons']['#weight'] = -500;
        $form['top_buttons']['#prefix'] = $form['buttons']['#prefix'] = '<div class="button-bar">';
        $form['top_buttons']['#suffix'] = $form['buttons']['#suffix'] = '</div><div class="clear"></div>';
    }
}

它在这一行抛出一个错误：

$form['top_buttons'] = $form['buttons'];

我不知道是否需要用其他可以在Drupal7中工作的东西来替换$form['buttons']。

有什么建议吗？

Answer 1

在Drupal7中，表单按钮被分组到$form['actions']下。因此，您需要修改代码以支持如下所示。

function sport_utils_form_alter($form, $form_state, $form_id) {
    if (strpos($form_id, '_node_form') !== FALSE) {
      $form['#validate'][] = 'byu_sport_utils_verify_valid_author';
      $form['#validate'][] = 'byu_sport_utils_remove_first_line_break';

      /**
        * Copy the action buttons (submit, preview, etc ..)
        * and place them at the top of the form
        */
      if(!empty($form['actions'])) {
        $actions = element_children($form['actions'], TRUE);
        foreach($actions as $name) {
          $form['top_buttons']["$name-top"] = $form['actions'][$name];
        }
      }

      $form['top_buttons']['#weight'] = -500;
      $form['top_buttons']['#prefix'] = $form['actions']['#prefix'] = '<div class="button-bar">';
      $form['top_buttons']['#suffix'] = $form['actions']['#suffix'] = '</div><div class="clear"></div>';
    }
}