CodeIgniter登录所有页面 [英] CodeIgniter login across all pages

问题描述

我对CI的MVC模型很新。

我有一个简单的页面，由3个视图组成。标题，内容和页脚。

在我的标题中，我有一个登录 >形式。因此，整个网站都会有一个登录表单。因为它出现在每个具有差异模型的页面上：

我将如何编写脚本以记录用户，因为我不喜欢写作

也许是另一个例子：
$ b

如果还不清楚，我试试另一个例子。假设我有一个网站。在我加载一个视图，在我的所有页面的页脚。并且页脚包含一个表单。现在，当我使用该表单发布数据时，应该将数据放在哪里？

显示它去处理表单中的所有帖子的专用PHP文件，它去到当前页面的控制器？

我希望我很清楚。再次，我刚开始使用CI和MVC一天前。

解决方案

当我使用该表单发布数据时，

您不应在每个页面（控制器）上写入逻辑。您应该做的是创建一个用于管理用户日志记录的不同的控制器（如 Accounts ）。

登录表单将数据发布到 accounts / login URL。但要返回上一页，我们应该将当前网址存储在 referer 。

，只需在每个需要的页面上的会话中存储 uri_string（）; 。

  $ this-> session-> set_userdata（array（
'referer'=> $ this-> uri-> uri_string（）
））; 
  

如果您不需要将用户重定向到上一页，请忽略它。

下面的示例说明如何实现目标：

  {
 
 public function login（）
 {
 $ config = array（
 //这里写你的验证规则
）; 
 
 $ this-> load-> library（'form_validation'）; 
 $ this-> form_validation-> set_rules（$ config）; 
 
 //检查表单是否提交
 if（isset（$ _ POST ['submit']））{
 
 if（$ this-> form_validation- > run（）== FALSE）{
 $ data ['login_errors'] = validation_errors（）; 
 //在会话中存储验证错误
 //在每个需要的页面上显示
 $ this-> session-> set_userdata（$ data）; 
} else {
 
 //登录过程
 //在会话中设置用户详细信息
 
 //登录后重定向到上一页
 if（$ referer = $ this-> session-> userdata（'referer'））{
 $ this-> session-> unset_userdata（'referer'）; 
} else {
 $ referer =''; 
} 
 
 redirect（base_url（）。$ referer）; 
} 
 
} 
} 
 
 public function logout（）
 {
 //销毁会话
 $ this-> session-> sess_destroy（）; 
 redirect（base_url（））; 
} 
} 
  

I'm am very new to CI the MVC model.

I have a simple page which is made of up 3 views. Header, Content and Footer. The content will be unique across the site but header and footer will be the same, no matter what page.

In my header I have a login form. So there will be a login form across the whole site. since it appears on every page which has diff models:

how will or where will I write the script for logging in a user as I don't fancy writing a login script on every model the header is used on...

Maybe another example:

If that's not clear, I try another example. Suppose I have a site. In that I load a view which is a footer in all my pages. and the footer contains a form. Now when I post data using that form, where should that data it go?

Show it go to a dedicated PHP file which handles all the posts from that form, or should it go to the current page' controller?

I hope I was clear. Again I Just started using CI and MVC a day ago. It would be nice if you could guide me.

解决方案

When i post data using that form, where should that data it go?

You shouldn't write the logic on every page (controller). What you should do is creating a distinct controller (like Accounts) for managing user logging.

The login form should post the data to accounts/login URL. but to get back to the previous page, we should store current URL in session as referer.

To do that, just store uri_string(); in the session on each page you need.

$this->session->set_userdata(array(
    'referer' => $this->uri->uri_string()
));

If you don't need to redirect the user to the previous page, ignore it.

The example below indicates how to achieve the goal:

class Accounts extends CI_Controller {

    public function login()
    {
        $config = array(
            // Write your validation rules here
        );

        $this->load->library('form_validation');
        $this->form_validation->set_rules($config);

        // Check whether form is submitted
        if (isset($_POST['submit'])) {

            if ($this->form_validation->run() == FALSE) {
                $data['login_errors'] = validation_errors();
                // Store validation errors in session
                // to display on every page needed
                $this->session->set_userdata($data);
            } else {

                // Login process
                // Set user detail in session

                // Redirect to previous page after login
                if ($referer = $this->session->userdata('referer')) {
                    $this->session->unset_userdata('referer');
                } else {
                    $referer='';
                }

                redirect(base_url().$referer);  
            }

        }
    }

    public function logout()
    {
        // Destroy the session
        $this->session->sess_destroy();
        redirect(base_url());
    }
}

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