Drupal 7 - 带有自定义表的自定义视图，没有显示数据

Question

我使用 Drupal 7 编写了一个与 Views 3 交互的模块，但是当我使用自定义表作为数据源创建视图时，没有数据显示。这是我的 MySQL 模式：

+-------------+------------+------+-----+---------+----------------+
| Field       | Type       | Null | Key | Default | Extra          |
+-------------+------------+------+-----+---------+----------------+
| id          | int(11)    | NO   | PRI | NULL    | auto_increment |
| title       | mediumtext | NO   |     | NULL    |                |
| Department  | text       | NO   |     | NULL    |                |
| credits     | int(10)    | NO   |     | NULL    |                |
| description | longtext   | NO   |     | NULL    |                |
+-------------+------------+------+-----+---------+----------------+

这是 my_module.views.inc 中的钩子覆盖：

function my_module_views_data() {
  $tableName = 'My_Awesome_Table';
  $data = array();
  $data[$tableName]['table']['group'] = t('Courses');

  $data[$tableName]['table']['base'] = array(
    'field' => 'id', 
    'title' => t('Courses'), 
    'help' => t("Contains courses, departments, and descriptions.")
  );

  $data[$tableName]['title'] = array(
    'title' => t('Course name'), 
    'help' => t('Course name'), 
    'field' => array(
      'handler' => 'views_handler_field', 
      'click sortable' => TRUE,
    ), 
    'sort' => array(
      'handler' => 'views_handler_sort',
    ), 
    'filter' => array(
      'handler' => 'views_handler_filter_string',
    ), 
    'argument' => array(
      'handler' => 'views_handler_argument_string',
    ),
  );

  $data[$tableName]['Department'] = array(
    'title' => t('Course department'), 
    'help' => t('Course department'), 
    'field' => array(
      'handler' => 'views_handler_field', 
      'click sortable' => TRUE,
    ), 
    'sort' => array(
      'handler' => 'views_handler_sort',
    ), 
    'filter' => array(
      'handler' => 'views_handler_filter_string',
    ), 
    'argument' => array(
      'handler' => 'views_handler_argument_string',
    ),
  );

  $data[$tableName]['credits'] = array(
    'title' => t('Credits'), 
    'help' => t('Number of credit hours'), 
    'field' => array(
      'handler' => 'views_handler_field', 
      'click sortable' => TRUE,
    ),
    'argument' => array('handler' => 'views_handler_argument_numeric'),
    'filter' => array('handler' => 'views_handler_filter_numeric'),
    'sort' => array('handler' => 'views_handler_sort_numeric')
  );

  $data[$tableName]['description'] = array(
    'title' => t('Course description'), 
    'help' => t('Course description'), 
    'field' => array(
      'handler' => 'views_handler_field', 
      'click sortable' => TRUE,
    ), 
    'sort' => array(
      'handler' => 'views_handler_sort',
    ), 
    'filter' => array(
      'handler' => 'views_handler_filter_string',
    ), 
    'argument' => array(
      'handler' => 'views_handler_argument_string',
    ),
  );

  $data[$tableName]['id'] = array(
    'title' => t('Unique identifier'),
    'help' => t('Primary key for table'),
    'field' => array('handler' => 'views_handler_field'),
    'argument' => array('handler' => 'views_handler_argument_numeric'),
    'filter' => array('handler' => 'views_handler_filter_numeric'),
    'sort' => array('handler' => 'views_handler_sort_numeric'));

  return $data;
}

我的映射看起来有问题吗？当我创建视图时，我正在尝试一个简单的无格式列表，并仅使用标签显示每个字段。唯一显示数据的字段是 id，我的表中的所有 id 值都在那里。我尝试向视图添加过滤器，以便课程部门 != blank 和课程名称 != blank，这并没有消除任何结果（基于 显示的 id）。以下是 Views 生成的查询：

SELECT My_Awesome_Table.title AS My_Awesome_Table_title,
  My_Awesome_Table.Department AS My_Awesome_Table_Department,
  My_Awesome_Table.description AS My_Awesome_Table_description,
  My_Awesome_Table.credits AS My_Awesome_Table_credits,
  My_Awesome_Table.id AS id
FROM {My_Awesome_Table} My_Awesome_Table
WHERE (( (My_Awesome_Table.Department NOT LIKE '' ESCAPE '\\') AND
  (My_Awesome_Table.title NOT LIKE '' ESCAPE '\\') ))

当我在 phpMyAdmin 中运行此查询时，只需从 My_Awesome_Table 周围删除 { 和 } ，它就会返回结果，并在那里是每列中的数据。

编辑：也许可以说，我为同一数据库中的不同表制作了另一个自定义视图模块，并且它工作得很好。我使用该模块作为该模块的基础，更改了模块名称、函数前缀等。

Answer 1

清除缓存，禁用模块“my_module”，保存，然后重新启用它，保存

在我的开发中，我必须添加这个钩子才能使其工作

function my_module_views_api() {
    return array('api'=>2.0);
}