Question

我正在为CodeIgniter中的验证设置回调函数，但是出现错误，显示“无法访问与您的字段名称对应的错误消息”。希望有人能帮我解决问题。

这是我的控制器：

<?php class User_Registration extends CI_Controller {

    public function __construct()
    {
        parent::__construct();
        $this->load->model('UserRegistration');
    }

    public function index()
    {
        $this->load->helper('form');
        $this->load->library('form_validation');
        $data['results'] = $this->UserRegistration->get_record();

        $this->load->view('templates/header');
        $this->load->view('User_Registration', $data);
        $this->load->view('templates/footer');
    }

    public function register()
    {
        $this->load->helper('form');
        $this->load->library('form_validation');

        $this->form_validation->set_rules('Ins_ID', 'Ins_ID', 'trim|required|xss_clean|callback_check_Ins_ID');
        $this->form_validation->set_rules('Ins_Name', 'Ins_Name', 'required');
        $this->form_validation->set_rules('Gender', 'Gender', 'required');
        $this->form_validation->set_rules('Address', 'Address', 'required');
        $this->form_validation->set_rules('Contact_No', 'Contact_No', 'required');
        $this->form_validation->set_rules('Email', 'Email', 'required');
        $this->form_validation->set_rules('Education_Level', 'Education_Level', 'required');
        $this->form_validation->set_rules('Commence_Date', 'Commence_Date', 'required');
        $this->form_validation->set_rules('User_Name', 'User_Name', 'trim|required|xss_clean|callback_check_User_Name');
        $this->form_validation->set_rules('Password', 'Password', 'required');

        if ($this->form_validation->run() === FALSE) {
            $data['results'] = $this->UserRegistration->get_record();

            $this->load->view('templates/header');
            $this->load->view('User_Registration', $data);
            $this->load->view('templates/footer');
        } else {
            $my_action = $this->input->post('submit');
            if ($my_action == 'submit') {
                $this->UserRegistration->insert_record();
            }

            $data['results'] = $this->UserRegistration->get_record();

            $this->load->view('templates/header');
            $this->load->view('Registration_Done');
            $this->load->view('templates/footer');
        }
    }


    function check_Ins_ID($Ins_ID)
    {
        //Field validation succeeded.  Validate against database
        $Ins_ID = $this->input->post('Ins_ID');
        $result = $this->UserRegistration->check_ins_id($Ins_ID);
        //query the database

        if ($result) {
            return TRUE;
        } else {
            $this->form_validation->set_message('check_Ins_ID', 'Invalid Instructor ID.Please contact to the administration.');
            return false;
        }
    }

    function check_User_Name($User_Name)
    {
        //Field validation succeeded.  Validate against database
        $User_Name = $this->input->post('User_Name');
        $result = $this->UserRegistration->check_user_name($User_Name);
        //query the
        database

        if ($result) {
            $this->form_validation->set_message('check_User_Name', 'The User_Name already exist.Please use other User_Name.Thank you.');
            return TRUE;
        } else {
            return FALSE;

        }
    }
}
?>

这是我的模特：

function check_ins_id($Ins_ID)
{
    $this -> db -> select('Ins_ID');
    $this -> db -> from('user');
    $this -> db -> where('Ins_ID',$Ins_ID);
    $this -> db -> limit(1);
    $query = $this -> db -> get();

    if ($query -> num_rows() == 1) {
        return $query->result();
    } else {
        return false;
    }
}

function check_user_name($User_Name)
{
    $this -> db -> select('User_Name');
    $this -> db -> from('login');
    $this -> db -> where('User_Name',$User_Name);
    $this -> db -> limit(1);
    $query = $this -> db -> get();

    if ($query -> num_rows() == 1) {
        return $query->result();
    } else {
        return false;
    }
}

Answer 1

看看是否有帮助：

function check_Ins_ID($Ins_ID)
{
     //Field validation succeeded.  Validate against database
     //$Ins_ID = $this->input->post('Ins_ID');                     //you are already getting this in your parameters
     $result = $this->UserRegistration->check_ins_id($Ins_ID);//query the database

     if($result)
     {
         return TRUE;
     }
     else
     {
        $this->form_validation->set_message('check_Ins_ID', 'Invalid Instructor ID.Please contact to the administration.');
        return false;
     }
 }

当您调用验证函数时，您将获得回调函数参数中的字段值，而不是来自$_POST。

CodeIgniter中的回调函数

1 个答案: