创建一个drupal区块(4)

通过使用Drupal自带的变量系统的函数variable_set()，你将区块中显示的待定评论的数目保存了下来。注意这里使用了类型转换，将其转换为了整数，目的是对数据进行明智检查。最后添加view操作，当区块显示时，返回一个待定评论列表。

 

function approval_block($op = 'list', $delta = 0, $edit = array()) {

    switch ($op) {

        case 'list':

            $blocks[0]['info'] = t('Pending comments');

            return $blocks;

 

        case 'configure':

            $form['approval_block_num_posts'] = array(

                '#type' => 'textfield',

                '#title' => t('Number of pending comments to display'),

                '#default_value' => variable_get('approval_block_num_posts', 5),

            );

            return $form;

 

        case 'save':

            variable_set('approval_block_num_posts',

                (int)$edit['approval_block_num_posts']);

            break;

 

        case 'view':

            if (user_access('administer comments')) {

               // Retrieve the number of pending comments to display that

               // we saved earlier in the 'save' op, defaulting to 5.

               $num_posts = variable_get('approval_block_num_posts', 5);

 

               // Query the database for unpublished comments.

               $result = db_query_range('SELECT c.* FROM {comments} c WHERE

               c.status = %d ORDER BY c.timestamp', COMMENT_NOT_PUBLISHED, 0,

               $num_posts);

 

               // Preserve our current location so user can return after editing.

               $destination = drupal_get_destination();

               $items = array();

               while ($comment = db_fetch_object($result)) {

                   $items[] = l($comment->subject, 'node/'. $comment->nid,

                      array('fragment' => 'comment-'. $comment->cid)) .' '.

                      l(t('[edit]'), 'comment/edit/'. $comment->cid,

                      array('query' => $destination));

               }

 

               $block['subject'] = t('Pending comments');

               // We theme our array of links as an unordered list.

               $block['content'] = theme('item_list', $items);

            }

            return $block;

    }

}