public function add_address($id, Customer $obj)
{
$data = $obj->address();
$sqlEx = $this->sql->update();
$sqlEx->table($this->table);
$sqlEx->set($data);
$sqlEx->where(array('id' => $id));
$pst = $this->sql->prepareStatementForSqlObject($sqlEx);
$result = $pst->execute();
if ($result != null) {
return TRUE;
} else {
return FALSE;
}
}