“没有为`I_Display_Type_Controller`注册实用程序”在nextgen图库ajax上调用wordpress

Question

我试图通过ajax加载nextgen Gallery，但是我得到了这个错误

我试了很多方法，现在离我更近了

function noix_galeria_click() {
  // check nonce
  $nonce = $_POST['nextNonce'];
  if ( ! wp_verify_nonce( $nonce, 'myajax-next-nonce' ) )
    die ( 'Busted!');

  $cobertura = get_post_meta($_POST['postId'], 'id_da_galeria', true);;
  echo nggShowGallery($galeria);
  exit;
}

这将作为响应返回

<h1>Exception thrown</h1><p>No utilities registered for `I_Display_Type_Controller`</p>

ajax起作用了，用wp_queries试过了，还有一堆东西，都起作用了，除了nextgen画廊相关的东西

我认为这是一段报告错误的代码

function _retrieve_utility_class($interface, $context='all')
    {
        $class = FALSE;

        if (!$context) $context = 'all';
        if (isset($this->_utilities[$interface])) {
            if (isset($this->_utilities[$interface][$context])) {
                $class = $this->_utilities[$interface][$context];
            }

            // No utility defined for the specified interface
            else {
                if ($context == 'all') $context = 'default';
                $class = $this->_retrieve_utility_class($interface, FALSE);
                if (!$class)
                    throw new Exception("No utility registered for `{$interface}` with the `{$context}` context.");

            }
        }
        else throw new Exception("No utilities registered for `{$interface}`");

        return $class;
    }

我还能尝试什么呢？

编辑--我试图查找这些方法调用，并将此文件更改为wp-content/plugins/nextgen-gallery/products/photocrati_nextgen/modules/nextgen_gallery_display/module.nextgen_gallery_display.php，查找!is_admin()，更改为真(用于测试)，错误更改为：

<h1>Default Gallery Type Template</h1>
<p>
    This is the default gallery type template, located in:<br/>
    <b>/home/ian/Sites/portalsabores/wp-content/plugins/nextgen-gallery/products/photocrati_nextgen/modules/nextgen_gallery_display/templates/index.php</b>.
</p>
<p>

我尝试指定模板：echo nggShowGallery($galeria, 'coberturas', 8);，但没有任何更改

这似乎与wordpress ajax api进行管理调用https://wordpress.stackexchange.com/questions/53309/why-might-a-plugins-do-shortcode-not-work-in-an-ajax-request有关

有办法改变这一点吗？

Answer 1

这个答案使我能够做到：https://wordpress.stackexchange.com/questions/96026/nextgen-gallery-how-to-get-picture-url-by-gallery-id

我使用SMK theme view将ajax返回更改为模板部件，ajax操作变为：

function noix_galeria_click() {
  // check nonce
  $nonce = $_POST['nextNonce'];
  if ( ! wp_verify_nonce( $nonce, 'myajax-next-nonce' ) )
    die ( 'Busted!');

  $cobertura = get_post_meta($_POST['postId'], 'id_da_galeria', true);

  ob_start();
?>
<?php smk_get_template_part('parts/coberturas/galeria-principal.php', array(
              'galeria' => $cobertura,
              'post_id' => $_POST['postId']
              )); ?>
<?php
  $output = ob_get_contents();
  ob_end_clean();
  echo $output;
  die();
}

使用smk，您可以通过get_template_part函数发送变量

在galeria-principal.php上，我有

<?php
global $nggdb;

$gall_ids = $nggdb->get_ids_from_gallery($this->galeria); // smk allow you to return the variables as properties of $this
$images = $nggdb->find_images_in_list($gall_ids); // see these methods at
// wp-content/plugins/nextgen-gallery/products/photocrati_nextgen/modules/ngglegacy/lib/ngg-db.php
// then build the template
$evento = get_post($this->post_id);
?>
<...>
      <?php foreach ($images as $image): ?>
        <?php
          // I build this path because imageURL was empty, not sure why
          $file_path = get_home_url() .$image->_ngiw->_cache['path'] . '/' . $image->_ngiw->_cache['filename'];
          $file_desc = $image->_ngiw->_cache['description'];
          ?>
        <li>
          <img src="<?php echo $file_path ?>" alt="<?php echo $file_desc ?>">
        </li>
      <?php endforeach ?>

<...>

这将在ajax中正常工作