Question

不要这样。我必须验证基本表格。我使用CI form_validation库，表单验证规则只设置为＆＃34; required＆＃34; ...如果表单验证失败，它只需要在登录表单中回显验证错误。我默认使用<?php echo validation_errors(); ?> Helper是自动加载的。表单功能是好的它应该如何工作，唯一的问题是框架不显示错误消息如果不填写必填字段？

login_form.php - 查看

<?php echo validation_errors(); ?> 

<?php echo form_input('email' , 'email'); ?> <br>
<?php echo form_input('password' , 'password'); ?> <br>
<?php echo form_submit('submit' , 'submit'); ?>

login.php - CONTROLLER

<?php
Class Login extends CI_Controller {

  function index () {
    $data ['content'] = "login_form";
    $this->load->view("template", $data);
  }

  function validate() {
    $this->load->library("form_validation");


    $this->form_validation->set_rules('email' , 'email' , 'trim|xss_clean|required');
    $this->form_validation->set_rules('password' , 'password' , 'md5|trim|required');

    if( $this->form_validation->run() == FALSE) {
        redirect('login/index');
    }
    else {
        redirect("user/profile");
    }
  }

}
?>

Answer 1

为什么不在控制器中使用代码，希望能帮助您将表单操作设置为login.php login.php - CONTROLLER

function index () {
    $data ['content'] = "login_form";
    $this->load->library("form_validation");
    $this->form_validation->set_rules('email' , 'email' , 'trim|xss_clean|required');
    $this->form_validation->set_rules('password' , 'password' , 'md5|trim|required');
    if( $this->form_validation->run() == FALSE) {
          $this->load->view("template", $data);
    }
    else {
        redirect("user/profile");
     }  
}

login_form.php - VIEW

<?php echo validation_errors(); ?> 

<?php echo form_input('email' , 'email'); ?> <br>
<?php echo form_input('password' , 'password'); ?> <br>
<?php echo form_submit('submit' , 'submit'); ?>

Answer 2

if( $this->form_validation->run() == FALSE) {
    redirect('login/index');
}

不要重定向，否则错误将无法使用。而不是保持

if( $this->form_validation->run() == FALSE) {
    $data ['content'] = "login_form";
    $this->load->view("template", $data);
}

检查以下链接以获取更多详细信息：
Form Validation : CodeIgniter User Guide

无法显示Codeigniter验证错误

2 个答案: