[Drupal] Drupal7 How to theme a table with pager.

As we know, Drupal7 has changed a lot, and we have to be familiar with it.

Here is an example to theme a table with pager.

  $output = '';
  $header = array(
    array(
      'data'=>t('Title'),
      'field'=>'n.title',
    ),
    array(
      'data' => '',
    ),
  );

  $query = db_select('node', 'n')->extend('PagerDefault')->extend('TableSort');
  $query->fields('n', array('nid', 'title'));
  $ua_alias = $query->leftJoin('users_act' ,'ua', '%alias.nid = n.nid');
  $query->addField($ua_alias, 'uid', 'ua_uid');
  $query->addField($ua_alias, 'status', 'ua_status');
  $query->condition('n.type', 'activity');
  $objects = $query->limit(50)
    ->orderByHeader($header)
    ->execute()
    ->fetchAll();
  $rows = array();
  foreach ($objects as $key=>$object) {
    $row = array();
    $nid = $object->nid;
    $row[] = l(check_plain($object->title), 'node/'.$object->nid, array('attributes'=>array('target'=>'_blank')));
    $row[] = '<a href="?nid='.$nid.'" title='.$object->title.' target="_blank">my link</a>';
    $rows[] = $row;
  }
  $output .= theme('table', array('header'=>$header, 'rows'=>$rows, 'empty'=>t('No result found.')));
  $output .= theme('pager');

  return $output; 

It is just an example, any details, please see in drupal.org

Have fun with Drupal7!