CodeIgniter - 如何检查会话在每个方法使用 [英] CodeIgniter - How to check session to be used at every methods

问题描述

让我在控制器上命名为 Book ，我有很多方法，例如
get_book（）; read_book（）; remove_book（）;

Let say at my controller named Book, I have many methods, such as get_book(); read_book(); remove_book();

可以在没有用户登录的情况下使用，我可以从会话中获取 user_id 。

No methods in the class can be used without user logged in, and I can get the user_id from session.

strong>什么是/是否是检查 user_id 会话是否已设置，以便我可以使用方法的最佳方法？

My question is, what is/are the best ways to check the if the user_id session is set so that I can use the methods?

现在我想创建一个 is_logged_in（） 方法， if-else语句，如

As for now I am thinking of creating a is_logged_in() method, and apply it to every methods with an if-else statement, like

if($this->is_logged_in()
{
   //do something
}
else
{
   //redirect to home
}  

这是不是很长而乏味？有没有一个最终的方式来实现这个？

Isn’t it long and tedious? Is there an ultimate way to achieve this?

我读取链接

代码检查用户会话在每个控制器

但似乎我仍然必须应用 is_logged_in

But it seems that I still have to apply the is_logged_in check at every methods.

感谢您帮助我！

推荐答案

在 / application / core 中调用 MY_controller.php （前缀可以在配置文件中编辑）的文件：

Create a file called MY_controller.php (the prefix can be edited in config file) in /application/core:

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class MY_Controller extends CI_Controller {


    function __construct()
    {

        parent::__construct();

        //Initialization code that affects all controllers
    }

}


class Public_Controller extends MY_Controller {

    function __construct()
    {
        parent::__construct();

        //Initialization code that affects Public controllers. Probably not much needed because everyone can access public.
    }

}

class Admin_Controller extends MY_Controller {

    function __construct()
    {
        parent::__construct();
        //Initialization code that affects Admin controllers I.E. redirect and die if not logged in or not an admin
    }

}

class Member_Controller extends MY_Controller {

    function __construct()
    {
        parent::__construct();

        //Initialization code that affects Member controllers. I.E. redirect and die if not logged in
    }

}

    class Book extends Member_Controller {

        //Code that will be executed, no need to check anywhere if the user is logged in. 
        //The user is guaranteed to be logged in if we are executing code here.

//If you define a __construct() here, remember to call parent::__construct();
    }

这样可以减少代码重复，因为如果你需要另一个成员控制器 Book 你可以扩展 Member_Controller 。而不是必须在所有的检查。

This cuts code duplication a lot, since if you need another member controller other than Book you can just extend the Member_Controller. Instead of having to do the checks in all of them.

这篇关于CodeIgniter - 如何检查会话在每个方法使用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！