/**
* 增加联系人分组,返回分组ID
* @param int $user_id 用户ID
* @param string $name 分组名
* @return int
*/
public function add($user_id, $name)
{
$id = $this->contact_mapper->add_category($user_id, $name);
if ($id) {
$this->clear_cache($user_id, array('type' => 'add', 'id' => $id, 'name' => $name));
}
return $id;
}
