去掉Drupal搜索結果頁中的表單

Drupal搜索結果頁面中會出現一個搜索表單，與置頂的表單有重複的不好之處，另外，我也想在AMP頁面等特殊情況下去掉搜索結果頁中的表單。

以前好些在網上搜過有修改CSS的辦法來隐藏表單的顯示，今天又找到Drupal的hook_form_alter這個API調用辦法，測試有效，記錄如下：

function my_module_name_form_alter(&$form, &$form_state, $form_id) {
// We have to be careful to alter only the contact site form,
// as this hook is used for every form the system uses.
  if($form_id == 'contact_site_form'){//修改聯系我們表單
    $form['referer'] = array(
      '#type' => 'hidden',
      '#title' => t('REFERER'),
      '#required' => FALSE,
      '#maxlength' => 255,
      '#default_value' => $_SERVER['HTTP_REFERER'],
    );
  }
  if ($form_id == 'search_form' && $_GET['q'] != 'search') {//隐藏搜索表單
    unset($form['basic']);
    unset($form['advanced']);
  }
}

還有帖子說調用其它的API，例如：

function mytheme_page_alter(&$page) {
  // This assumes everything being output in the "content" page region.

  // Logged in
  if (!empty($page['content']['system_main']['content']['search_form'])) {
    unset($page['content']['system_main']['content']['search_form']);
  }

  // Not logged in
  if (!empty($page['content']['system_main']['search_form'])) {
    unset($page['content']['system_main']['search_form']);
  }
}

這個辦法沒有試過，記錄下來備用。
 

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