function deleteQBByCourseId($courseId)
{
$list = Comman::convertArrayToSingle($this->getList(array('id'), $courseId), 'id');
foreach ($list as $item) {
$this->delete($item);
}
return true;
}
function getNEList($type = null, $limit = null)
{
$columns = array(0 => 'uid');
$wh = "uid!=0 ";
if ($type != null) {
$wh = "type='{$type}' ";
}
$wh .= "ORDER BY `date` DESC";
if ($limit != null) {
$wh .= " LIMIT {$limit}";
}
return Comman::convertArrayToSingle($this->db->getDataGrid($this->table, $columns, $wh), 'uid');
}
function getReferers()
{
$where = "admin!=1 GROUP BY `ref`";
return Comman::convertArrayToSingle($this->db->getDataGrid($this->table, array('ref'), $where), 'ref');
}
