我的登录会话有问题。
这是我迄今为止尝试过的：
User.php 控制器
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class User extends CI_Controller{
public function __construct()
{
parent::__construct();
$this->load->model('user_model');
}
public function index()
{
//if(($this->session->userdata('logged_in') == TRUE))
if(($this->session->userdata('username') != "" ))
{
$this->welcome();
}
else {
$data['title']= 'Home';
$this->load->view('include/header',$data);
$this->load->view("frontpage", $data);
$this->load->view('include/footer',$data);
}
}
public function welcome()
{
$data['title']= 'Welcome';
$this->load->view('include/header',$data);
$this->load->view('include/navbar',$data);
$this->load->view('welcome_view', $data);
$this->load->view('include/sidebar',$data);
$this->load->view('include/footer',$data);
}
public function login()
{
$username = $this->input->post('username');
$password = $this->input->post('password');
//md5($this->input->post('password'));
//$this->input->post('password');
$result = $this->user_model->login($username, $password);
if($result)
$this->welcome();
else
$this->index();
}
public function thank()
{
$data['title']= 'Thank';
$this->load->view('include/header',$data);
$this->load->view('thank_view.php', $data);
$this->load->view('include/footer',$data);
}
public function registration()
{
$this->load->library('form_validation');
// field name, error message, validation rules
$this->form_validation->set_rules('username', 'Username', 'trim|required|min_length[4]|xss_clean');
$this->form_validation->set_rules('password', 'Password', 'trim|required|min_length[4]|max_length[32]');
$this->form_validation->set_rules('con_password', 'Password Confirmation', 'trim|required|matches[password]');
if($this->form_validation->run() == FALSE)
{
$this->index();
}
else
{
$this->user_model->add_user();
$this->thank();
}
}
public function logout()
{
$newdata = array(
//'user_id' =>'',
'username' =>'',
'logged_in' => FALSE
);
$this->session->unset_userdata($newdata);
$this->session->sess_destroy();
$this->index();
}
}
?>
user_model.php 模型
<?php
class User_Model extends CI_Model
{
public function __construct()
{
parent::__construct();
}
function login($username, $password)
{
$this->db->where("username", $username);
$this->db->where("password", md5($password));
$query = $this->db->get("users");
if($query->num_rows()>0)
{
foreach($query->result() as $rows)
{
//add all data to session
$newdata = array(
//'user_id' => $rows->id,
'username' => $rows->username,
'logged_in' => TRUE
);
}
$this->session->set_userdata($newdata);
return true;
}
return false;
}
public function add_user()
{
$data=array(
'username'=> $this->input->post('username'),
'password'=> $this->input->post('password')// md5($this->input->post('password'))
);
$this->db->insert('users',$data);
}
}
?>
frontpage.php 视图
<div class="container">
<div class="jumbotron">
<?php
$attributes = array('class' => 'form-signin');
echo form_open(base_url('login'), $attributes); ?>
<h2 class="form-signin-heading">VMS Login System</h2>
<input type="username" name="username" class="form-control" placeholder="Username" required autofocus>
<input type="password" name="password" class="form-control" placeholder="Password" required>
<button class="btn btn-primary" type="submit">Login</button>
<button class="btn btn-primary" type="reset">Cancel</button> <!-- btn btn-lg btn-primary btn-block -->
<?php echo form_close(); ?>
</div>
</div>
欢迎视图.php
<div class="container">
<div class="row row-offcanvas row-offcanvas-right">
<div class="col-xs-12 col-sm-9">
<p class="pull-right visible-xs">
<button type="button" class="btn btn-primary btn-xs" data-toggle="offcanvas">Toggle Sidebar</button>
</p>
<div class="jumbotron">
<h1>Van Management System</h1>
<p></p>
</div>
<div class="row">
<div class="col-6 col-sm-6 col-lg-4">
<h2>What's New</h2>
<p>Sample Only</p>
<p><a class="btn btn-default" href="#" role="button">View details »</a></p>
</div><!--/span-->
<div class="col-6 col-sm-6 col-lg-4">
<h2>Charts and Graphs</h2>
<p>Check out sample</p>
<p><a class="btn btn-default" href="#" role="button">View details »</a></p>
</div><!--/span-->
<div class="col-6 col-sm-6 col-lg-4">
<h2>Announcements</h2>
<p>Announcements</p>
<p><a class="btn btn-default" href="#" role="button">View details »</a></p>
</div><!--/span-->
</div><!--/row-->
</div><!--/span-->
问题是，每当我退出系统并返回登录页面时，我总是可以返回欢迎页面，我的会话没有被破坏。我想要的是，当我登录时，我当然在欢迎页面。当我返回登录页面时，系统应该将我重定向到欢迎视图，并且如果我当前已登录，系统将不允许我进入登录页面。有什么想法吗？我试过了，但什么也没发生 :( 非常感谢帮助。
更新： 这是我加载欢迎页面的方式：
public function index()
{
//if(($this->session->userdata('logged_in') == TRUE))
if(($this->session->userdata('username') != "" ))
{
$this->welcome();
}
else {
$data['title']= 'Home';
$this->load->view('include/header',$data);
$this->load->view("frontpage", $data);
$this->load->view('include/footer',$data);
}
}
public function welcome()
{
$data['title']= 'Welcome';
$this->load->view('include/header',$data);
$this->load->view('include/navbar',$data);
$this->load->view('welcome_view', $data);
$this->load->view('include/sidebar',$data);
$this->load->view('include/footer',$data);
}