问CI2语言类和模型

EN

//fetch topic data.
$this->db->select('id, Name, Description, Level');
$this->db->from('groups');
$this->db->where('id', $gid);
$query = $this->db->get();
$GroupData = $query->row();

//see if we have any records to show.
if($query->num_rows() > 0) {
    $this->setId($GroupData->id);
    $this->setName($GroupData->Name);
    $this->setDescription($GroupData->Description);
    $this->setLevel($GroupData->Level);
} else {
    //no record was found, throw an error.
    show_error($this->lang->line('invalidgid').'<hr />File:'.__FILE__.'<br />Line:'.__LINE__, 500, $this->lang->line('error'));
    log_message('error', 'invalid GroupID was provided.'); //log error in error log.
}