首先你系統擴展類是放在application/core下面的，本來系統核心類是CI_Controller，所以你不能以CI_開頭了，你需要打開 application/config/config.php 修改 $config['subclass_prefix'] = 'MY_'; 為你的前綴!
一些公共的模塊就可以卸載自己的核心類裡面了！
這幾天讀了Dilicms（輕量級的後台架構），比如說他的後台擴展類是這樣的：
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
abstract class Admin_Controller extends CI_Controller
{
/**
* _admin
* 保存當前登錄用戶的信息
*
* @var object
* @access public
**/
public $_admin = NULL;
/**
* 構造函數
*
* @access public
* @return void
*/
public function __construct()
{
parent::__construct();
$this->load->library('session');
$this->settings->load('backend');
$this->load->switch_theme(setting('backend_theme'));
$this->_check_login();
$this->load->library('acl');
$this->load->library('plugin_manager');
}
// ------------------------------------------------------------------------
/**
* 檢查用戶是否登錄
*
* @access protected
* @return void
*/
protected function _check_login()
{
if ( ! $this->session->userdata('uid'))
{
redirect(setting('backend_access_point') . '/login');
}
else
{
$this->_admin = $this->user_mdl->get_full_user_by_username($this->session->userdata('uid'), 'uid');
if ($this->_admin->status != 1)
{
$this->session->set_flashdata('error', "此帳號已被凍結,請聯系管理員!");
redirect(setting('backend_access_point') . '/login');
}
}
}
// ------------------------------------------------------------------------
/**
* 加載視圖
*
* @access protected
* @param string
* @param array
* @return void
*/
protected function _template($template, $data = array())
{
$data['tpl'] = $template;
$this->load->view('sys_entry', $data);
}
// ------------------------------------------------------------------------
/**
* 檢查權限
*
* @access protected
* @param string
* @return void
*/
protected function _check_permit($action = '', $folder = '')
{
if ( ! $this->acl->permit($action, $folder))
{
$this->_message('對不起，你沒有訪問這裡的權限！', '', FALSE);
}
}
// ------------------------------------------------------------------------
/**
* 信息提示
*
* @access public
* @param string
* @param string
* @param bool
* @param string
* @return void
*/
public function _message($msg, $goto = '', $auto = TRUE, $fix = '')
{
if($goto == '')
{
$goto = isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : site_url();
}
else
{
$goto = strpos($goto, 'http') !== false ? $goto : backend_url($goto);
}
$goto .= $fix;
$this->_template('sys_message', array('msg' => $msg, 'goto' => $goto, 'auto' => $auto));
echo $this->output->get_output();
exit();
}
}
它就把一些公共信息入驗證，登陸，跳轉放在Admin_Controller裡面，於是我在寫前台的時候也是這樣操作，擴展了Font_Controller:
abstract class Font_Controller extends CI_Controller{
public function __construct() {
parent::__construct();
}
//前台加載視圖方法
public function _template($template, $data = array()){
$data['nav'] = $this->get_nav();
$data['tpl'] = $template;
$this->load->view('default',$data);
}
//公共導航信息
public function get_nav(){
}
//公共友情鏈接信息
public function get_friendlink(){
}
}
abstract class Font_Controller extends CI_Controller{
public function __construct() {
parent::__construct();
}
//前台加載視圖方法
public function _template($template, $data = array()){
$data['nav'] = $this->get_nav();
$data['tpl'] = $template;
$this->load->view('default',$data);
}
//公共導航信息
public function get_nav(){
}
//公共友情鏈接信息
public function get_friendlink(){
}
}
abstract class Font_Controller extends CI_Controller{
public function __construct() {
parent::__construct();
}
//前台加載視圖方法
public function _template($template, $data = array()){
$data['nav'] = $this->get_nav();
$data['tpl'] = $template;
$this->load->view('default',$data);
}
//公共導航信息
public function get_nav(){
}
//公共友情鏈接信息
public function get_friendlink(){
}
}
提示,一些經常用到得工具和函數可以放在helper中！
*
