filedrive - file upload download

class filedrive extends controller{

    function filedrive()
    {
        parent::controller();
        $this->load->model('filedrive_model','FileDrive',true);
        $this->load->library("cudownload");
        $this->load->library("cuupload");
        $this->culogin->onlogin();
    }

    function index($id="")
    {
        $data["downloadlist"] = "";
        if (empty($id))
                $query = $this->FileDrive->file_query();
        else
                $query = $this->FileDrive->tags_like($id);

        foreach($query->result() as $row){
                $filelist["row"] = $row;
                $data["downloadlist"] .= $this->load->view("downloadlist",$filelist,true);
        }
        $dnTable = $this->load->view("downloadtable",$data,true);
        $viewData["body"] = $dnTable;
        $this->_MainFrame($viewData);
    }

    function upload_form(){
        $tags = $this->FileDrive->get_tags();
        $upForm = array("error"=>"");
        $upForm["active_url"] = "filedrive/upload";
        $upLoadform = $this->cuciload->view("upload_form",$upForm,true);
        $tags = $this->cuciload->view("tags",array("tags"=>$tags,),true);
        $backpage = $this->cuciload->view("backpage",array("goback" => "filedrive"),true);
        $viewData["body"] = $backpage.$upLoadform.$tags;
        $this->_MainFrame($viewData);
    }

    function update_form($id){
        $data["row"] = $this->FileDrive->select_file($id);
        $viewData["body"] = $this->load->view("update_form",$data,true).$this->file_tags();
        $this->_MainFrame($viewData);
    }

    function delete_form($id){
        $data["row"] = $this->FileDrive->select_file($id);
        $viewData["body"] = $this->load->view("delete_form",$data,true);
        $this->_MainFrame($viewData);
    }
    
    function file_tags(){
        $tags = $this->FileDrive->get_tags();
        return $this->cuciload->view("tags",array("tags"=>$tags,),true);
    }

    function update($id){
        $this->FileDrive->update($id);
        redirect("filedrive","location");
    }

    function delete($id){
        $row = $this->FileDrive->select_file($id);
        $this->FileDrive->delete_file($id);
        unlink("./uploads/".$row->file_name.$row->file_ext);
        redirect("filedrive","location");
    }


    function IsUpload($result){
        $data = $this->upload->data();
        $data["true_name"] = $result["true_name"];
        $data["file_date"] = date("Y-m-d");
        $data["file_time"] = date("H:i:s");
        $data["file_tag"] = $this->FileDrive->write_sql($data);
        $data["is_img"]= lang("NO")."</li>";
        if($data["is_image"])
        {
            $data["is_img"] = $this->load->view("is_image",$data,true);
        }

        return $data;
    }

    function Upload()
    {
        if ( empty($_FILES["userfile"]["name"]) )
                redirect("filedrive/upload_form", "location");
        $result = $this->FileDrive->filename();

        $this->cuupload->InitUploadLib_($result["file_name"]);

        if ( ! $this->upload->do_upload())
        {
            $data["body"] = $this->upload->display_errors()."<br>".anchor("filedrive","return file upload!");
        }
        else
        {
            $susess_data = $this->IsUpload($result);
            redirect("filedrive","location");
        }
        $this->_MainFrame($data);
    }

    function _MainFrame($frame)
    {
        $data = $this->_Tag_List();
        $frame["leftmenu"] = $this->load->view("leftmenu",$data,true);
        $frame["submenu"] = $this->load->view("submenu","",true);
        $this->csmainframe->view($frame);
    }

    function _Tag_List(){
        $tags = array();
        $query =$this->FileDrive->get_tags();

        foreach($query->result() as $row){
                $number = $this->FileDrive->count_tags_like($row->id);
                $tags[] = anchor("filedrive/index/".$row->id, $row->tags . " ( ".$number ." ) ");
        }

        $query_all = $this->FileDrive->tags_like("");
        $data["all_num"] = $query_all->num_rows();

        $notags_num = $this->FileDrive->tags_like("null");
        $data["notags_num"] = $notags_num->num_rows();
        $data["tag"] = $tags;
        return $data;
    }

    function download($id){
        $result = $this->FileDrive->download($id);
        $this->cudownload->DownLoadEx($result, "./uploads/");
    }

}