你能不能帮我弄清楚为什么我的代码不会显示setmessage:
$this->form_validation->set_message('Sorry %s is not correct.');
验证很高兴地表明它们是必需的:
home.php - >控制器
<?php
ob_start();
if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Home extends CI_Controller {
function __construct(){
parent::__construct();
}
function index(){
$this->login();
}
public function login()
{
//Loads The Page Template
$this->template->set('title','Admin Login');
//Validation Check
$this->form_validation->set_rules('username','Username','required|trim|max_length[50]|xss_clean');
$this->form_validation->set_rules('password','Password','required|trim|max_length[200]|xss_clean|callback_checkUsernamePassword');
if($this->form_validation->run() == FALSE){
$this->template->load('template','admin/admin_login');
}else{
extract($_POST); // Gets data from form and creates vars
$user_id = $this->login_model->check_login($username,$password);
if(! $user_id || $password){ // != If username or password are not correct
$this->session->set_flashdata('login_error',TRUE); //does not add the non valid login to the session
$this->form_validation->set_message('Sorry %s is not correct.');
redirect('admin');
}else{
$this->session->set_userdata('logged_in',TRUE);
$this->session->set_userdata('user_id',$user_id);
redirect('admin/dashboard');
}
}
}
function logout(){
$this->session->unset_userdata('logged_in');
echo 'You have now been logged out';
redirect('admin');
}
}
//End of file home.php
//Location: ./application/controllers/admin/home.php
login_model.php - &gt;模型
<?php
class Login_model extends CI_Model
{
function __construct()
{
parent::__construct();
}
function Login_model(){
parent::Model();
}
function check_login($username,$password){
$MD5_password = md5($password); // Tells the db that the password is a MD5 #
$query_str ="SELECT id FROM users WHERE email = ? and password = ?"; // Tells the db that this is a query
$result = $this->db->query($query_str, array($username, $MD5_password)); // Result
//If it is all correct
if($result->num_rows() == 1){
return $result->row(0)->id;
}else{
return false;
}
}
}
?>
我尝试了以下内容:
$lang['error'] = "Sorry your %s is incorrect.";
- This is set in the lang file
和
$this->form_validation->set_message('error','Sorry %s is not correct.');
答案 0 :(得分:5)
你真的应该阅读user_guide。你的逻辑不正确。例如,您没有使用回调。这就是您的错误消息未显示的原因。我已经为您提供了一些评论。
public function login()
{
$this->template->set('title','Admin Login');
$this->form_validation->set_rules('username','Username', 'required|trim|max_length[50]|xss_clean');
// You aren't using the callback here.
$this->form_validation->set_rules('password','Password', 'required|trim|max_length[200]|xss_clean|callback_checkUsernamePassword');
if($this->form_validation->run() == FALSE){
$this->template->load('template','admin/admin_login');
}else{
// You shouldn't be adding messages when the validation has already passed. The setting should be when the validation is false.
extract($_POST);
$user_id = $this->login_model->check_login($username,$password);
if(! $user_id || $password){
$this->session->set_flashdata('login_error',TRUE); //does not add the non valid login to the session
$this->form_validation->set_message('Sorry %s is not correct.');
redirect('admin');
}else{
$this->session->set_userdata('logged_in',TRUE);
$this->session->set_userdata('user_id',$user_id);
redirect('admin/dashboard');
}
}
}
这是你应该做的。我不打算对所有内容进行编码,但会给你一个想法。
public function login()
{
$this->template->set('title','Admin Login');
$this->form_validation->set_rules('username','Username', 'required|trim|max_length[50]|xss_clean');
$this->form_validation->set_rules('password','Password', 'required|trim|max_length[200]|xss_clean|callback_checkUsernamePassword');
if($this->form_validation->run() == TRUE){
$this->session->set_userdata('logged_in',TRUE);
$this->session->set_userdata('user_id',$user_id);
redirect('admin/dashboard');
}
$this->template->load('template','admin/admin_login');
}
public function checkUsernamePassword() {
extract($_POST); // Gets data from form and creates vars
$user_id = $this->login_model->check_login($username,$password);
if(! $user_id || $password){ // != If username or password are not correct
$this->session->set_flashdata('login_error',TRUE); //does not add the non valid login to the session
$this->form_validation->set_message('checkUsernamePassword', 'Sorry %s is not correct.');
return FALSE
}else{
$this->session->set_userdata('logged_in',TRUE);
$this->session->set_userdata('user_id',$user_id);
redirect('admin/dashboard');
}
}
答案 1 :(得分:0)
CodeIgniter的Form Validation类的set_message函数有两个参数 - 第一个是您要修改消息的验证规则的名称,第二个是修改后的消息本身。
http://codeigniter.com/user_guide/libraries/form_validation.html
因此,如果您想修改所需字段的消息,请使用:
$this->form_validation->set_message('required', 'Sorry %s is not correct.');
答案 2 :(得分:0)
$this->form_validation->set_message();
当您尝试创建自己的验证函数或设置新的错误消息时使用
如果您正在尝试制作自己的验证功能,那么您应该按照以下文章
进行操作http://codeigniter.com/user_guide/libraries/form_validation.html
您可以做的是根据返回的值,您可以设置$ this-&gt; session-&gt; set_flashdata();并在管理页面上显示。