emergency,,,help me,,,(save ke dua table database)

//-------------- MODEL ----------------------
class Data_model extends Model{
    function add($reg_data){
        $this->db->insert('data', $reg_data);
    }
}
 
class File_model extends Model{
    function add($reg_data){
        $this->db->insert('file', $reg_data);
    }
}
 
//---------- END OF MODEL -------------------
 
//----------- CONTROLLER ------------------
class Demography extends Controller{
    function upload(){
        $this->load->library('upload');
        // other routine here
        // prepare or do something
        if($this->upload->do_upload('FILE_FORM_NAME')){
            $this->load->model('file_model');
            $this->load->model('data_model');
 
            // your routine, such as get and prepare the params
 
            $this->data_model->add($reg_data);
            $this->file_model->add($reg_file);
        }
    }
}