使用自定义Drupal模块创建RTF文件

Question

我希望能够将节点ID传递给路径并生成RTF文件。我在加载库时遇到问题。我正在使用Libraries 2方法。错误是：

PHP Fatal error: Class 'PHPRtfLite' not found in [redacted]/sites/all/modules/custom/ain_export/ain_export.module on line 22 request_id="245a0131-9519-4fa9-a512-3b60d0b91ad8"

所以我一直在确保这些文件应该在哪里。在我的/ sites / all / libraries目录中，我有一个名为'phprtflite'的文件夹，设置如下：

-- phprtflite
----PHPRtfLite.php

下面是我的代码，现在根据下面的评论进行编辑，以便在我的回调中加载库。我仍然得到错误，除了现在第41行。似乎没有加载库？

<?php

/**
* Implements hook_libraries_info().
*/
function ain_export_libraries_info() {
    $libraries['phprtflite'] = array(
      'name' => 'PHPRtfLite',
      'vendor url' => 'http://sourceforge.net/projects/phprtf/',
      'download url' => 'http://sourceforge.net/projects/phprtf/',
      'files' => array(
        'php' => array('PHPRtfLite.php'),
      ),
    );
    return $libraries;
}


/**
* Implements hook_menu().
*/
function ain_export_menu() {
    $items = array();    
    $items['admin/ain_export/%'] = array(
        'title' => 'Export Node',
        'page callback' => 'ain_export_page',
        'page arguments' => array(2),
        'access arguments' => array('access administration pages'),
      );

    return $items;
}

// spit out node
function ain_export_page($nid) {

    // load library
    libraries_load('phprtflite');

    // register PHPRtfLite class loader
    PHPRtfLite::registerAutoloader();

  if (isset($nid) ) {
      try {

          $rtf = new PHPRtfLite();

          // set page properties
          $rtf->setMargins(2.54, 2.54, 2.54, 2.54);
          $rtf->setPaperFormat(PHPRtfLite::PAPER_LETTER);

          // define fonts
          $fontH1 = new PHPRtfLite_Font(16, 'Arial', '#000000');
          $fontH2 = new PHPRtfLite_Font(14, 'Arial', '#000000');
          $fontP = new PHPRtfLite_Font(12, 'Arial', '#000000');

          // vertical space
          $formatH1 = new PHPRtfLite_ParFormat();
          $formatH1->setSpaceAfter(8);
          $formatH2 = new PHPRtfLite_ParFormat();
          $formatH2->setSpaceAfter(6);
          $formatP = new PHPRtfLite_ParFormat();
          $formatP->setSpaceAfter(3);

          // page content
          $node = node_load($nid); // load the node

          // headline
          $section = $rtf->AddSection();
          $section->writeText($node->title, $fontH1, $formatH1);


          // output file
          $rtf->SendRtf( $nid . '.rtf' );


      } catch (Exception $e) {
          $error = $e->getMessage();
      }
  }

}