login extends controller

class login extends controller{

    function login()
    {
        parent::controller();
    }

    function index()
    {
        $this->load->view("login");
    }

    function chklogin()
    {
        $this->culogin->login($_POST["account"],$_POST["password"]);
        $this->culogin->islogin();
    }

    function logout(){
        $this->session->unset_userdata("login");
        redirect("main","location");
    }
}

CuLogin -- Login base on CodeIgniter Library

class CuLogin {

    function CuLogin()
    {
        $this->Login_Information();
    }

    function Login_Information(){
        $this->login_account = "useric";
        $this->login_password = "password";
    }

    function chk_login($account,$password){
        if (($account == $this->login_account) && ($password == $this->login_password))
            return true;
        return false;
    }

    function login($account = "",$password = ""){
        $CI = &get_instance();
        $CI->session->set_userdata("login",$this->chk_login($account,$password));
    }

    function islogin(){
        $CI = &get_instance();
        if ($CI->session->userdata("login"))
            redirect("bulletin","location");
        redirect("login","location");
    }

    function onlogin(){
        $CI = &get_instance();
        if (!$CI->session->userdata("login"))
            redirect("main","location");
    }


}

weblink -- view

# delete_form.php

<a href="javascript:history.go(-1)"><?=lang("BACK")?></a> <?=anchor("weblink/delete_link/".$row->id,lang("DELETE"))?>
<table>
    <tr>
        <td><?=lang("LINK").lang("DESCRIPTION")?></td>
        <td><?=$row->link_des?></td>
    </tr>
    <tr>
        <td><?=lang("LINK").lang("WEB")?></td>
        <td>http://<?=$row->weblink?></td>
    </tr>
</table>

# edit_form.php

<?=form_open("weblink/{$action}")?>
<table>
    <tr>
        <td><?=lang("LINK").lang("DESCRIPTION")?></td>
        <td><input type="text" name="link_des" size="40" maxlength="64" value="<?=$row->link_des?>" /></td>
    </tr>
    <tr>
        <td><?=lang("LINK").lang("WEB")?></td>
        <td>http://<input type="text" name="weblink" size="40" maxlength="256" value="<?=$row->weblink?>" /></td>
    </tr>
    <tr>
        <td colspan="2" align="center"><input type="submit" value="<?=lang("SUBMIT")?>"></td>
    </tr>
</table>
</form>

# showlink.php

<table border="1">
    <tr>
        <td width="150"><?=lang("LINK").lang("DESCRIPTION")?></td>
        <td width="250"><?=lang("LINK").lang("WEB")?></td>
        <td width="50"><?=lang("EDIT")?></td>
    </tr>
    <?php foreach($query->result() as $row):?>
    <tr>
        <td><?=anchor_popup("http://".$row->weblink,$row->link_des,$atts)?></td>
        <td>http://<?=$row->weblink?></td>
        <td><?=anchor("weblink/edit_form/".$row->id,lang("EDIT"))?> <?=anchor("weblink/delete_form/".$row->id,lang("DELETE"))?></td>
    </tr>
    <?php endforeach;?>
</table>

# submenu.php

<table border="0">
    <tr>
        <td><?=anchor("weblink",lang("VIEW").lang("LINK"))?></td>
        <td><?=anchor("weblink/insert_link_form",lang("INSERT").lang("LINK"))?></td>
    </tr>
</table>

weblink_sql -- model

class weblink_sql extends model{

    function weblink_sql()
    {
        parent::model();
        $database_table = $this->config->item("database_table_name");
        $this->table_name = $database_table."weblink";
    }

    function load_post()
    {
        return array(
            "link_des" => $_POST["link_des"],
            "weblink" => $_POST["weblink"]
        );
    }

    function select($id = ""){
        if($id != "")
            return $this->db->get_where($this->table_name,array("id"=>$id));
        $this->db->order_by("id","desc");
        return $this->db->get($this->table_name);

    }

    function insert()
    {
        $this->db->insert($this->table_name,$this->load_post());
    }

    function update($id)
    {
        $this->db->where("id",$id);
        $this->db->update($this->table_name,$this->load_post());
    }

    function delete($id){
        $this->db->where("id",$id);
        $this->db->delete($this->table_name);
    }

}

weblink - modify web link

class weblink extends controller{

    function weblink()
    {
        parent::controller();
        $this->culogin->onlogin();
        $this->load->model("weblink_sql","WLINK",TRUE);
    }

    function index()
    {
        $data["atts"] = array("width" => "1024");
        $data["query"] = $this->WLINK->select();
        $frame["body"] = $this->load->view("showlink",$data,TRUE);
        $this->_MainFrame($frame);
    }

    function insert_link_form(){
        $data["row"] = array();
        $data["action"] = "insert_link";
        $frame["body"] = $this->load->view("edit_form",$data,TRUE);
        $this->_MainFrame($frame);
    }

    function edit_form($id){
        $query = $this->WLINK->select($id);
        $data["action"] = "update_link/".$id;
        $data["row"] = $query->row();
        $frame["body"] = $this->load->view("edit_form",$data,TRUE);
        $this->_MainFrame($frame);
    }

    function delete_form($id){
        $query = $this->WLINK->select($id);
        $data["row"] = $query->row();
        $frame["body"] = $this->load->view("delete_form",$data,TRUE);
        $this->_MainFrame($frame);
    }

    function insert_link(){
        $this->WLINK->insert();
        $this->_Redirect();
    }

    function update_link($id){
        $this->WLINK->update($id);
        $this->_Redirect();
    }

    function delete_link($id){
        $this->WLINK->delete($id);
        $this->_Redirect();
    }

    function _Redirect(){
        redirect("weblink","location");
    }

    function _MainFrame($frame = ""){
        $frame["submenu"] = $this->load->view("submenu","",TRUE);
        $frame["leftmenu"] ="";
        $this->cuciload->view("mainframework",$frame);
    }
}