codeigniter中的set_message不起作用

Question

i am going to change the validation message for a specific rule called accept in codeigniter. it is a checkbox. i tried this code according to codeigniter's documentation:

function register()
{
    //validate form input
    $this->form_validation->set_rules('sex', $this->lang->line('create_user_validation_sex_label'), 'required|trim|xss_clean');
    $this->form_validation->set_rules('first_name', $this->lang->line('create_user_validation_fname_label'), 'required|trim|xss_clean');
    $this->form_validation->set_rules('last_name', $this->lang->line('create_user_validation_lname_label'), 'required|trim|xss_clean');
    $this->form_validation->set_rules('email', $this->lang->line('create_user_validation_email_label'), 'required|valid_email|trim|is_unique[users.email]');
    $this->form_validation->set_rules('phone', $this->lang->line('create_user_validation_phone_label'), 'required|trim|xss_clean');
    $this->form_validation->set_rules('mob', $this->lang->line('create_user_validation_mob_label'), 'required|trim|xss_clean');
    $this->form_validation->set_rules('address', $this->lang->line('create_user_validation_address_label'), 'required|trim|xss_clean');
    $this->form_validation->set_rules('company', $this->lang->line('create_user_validation_company_label'), 'required|trim|xss_clean');
    $this->form_validation->set_rules('agentcode', $this->lang->line('create_user_validation_agentcode_label'), 'required|trim|xss_clean', 'callback_ins');
    function callback_ins ($ins)
    {
        if ($ins == 0) {
            return false;
        }
        else {
            return true;
        }
    }
    $this->form_validation->set_rules('username', $this->lang->line('create_user_validation_username_label'), 'required|trim|xss_clean|is_unique[users.username]');
    $this->form_validation->set_rules('password', $this->lang->line('create_user_validation_password_label'), 'required|min_length[' . $this->config->item('min_password_length', 'ion_auth') . ']|max_length[' . $this->config->item('max_password_length', 'ion_auth') . ']|matches[password_confirm]');
    $this->form_validation->set_rules('password_confirm', $this->lang->line('create_user_validation_password_confirm_label'), 'required');
    $this->form_validation->set_rules('accept', 'Accept', 'callback_accept_check');
    function accept_check($str)
{
    if ($str == '') {
        $this->form_validation->set_message('accept_check', 'برای ایجاد یک حساب کاربری، باید قوانین سایت را مطالعه کرده و موافقت خود را با آن اعلام نمایید.');
        return FALSE;
    } else {
        return TRUE;
    }
}

    if ($this->form_validation->run() == TRUE)
    {
        $username = strtolower($this->input->post('username'));
        $email    = strtolower($this->input->post('email'));
        $password = $this->input->post('password');

        $additional_data = array(
            'sex'        => $this->input->post('sex'),
            'first_name' => $this->input->post('first_name'),
            'last_name'  => $this->input->post('last_name'),
            'phone'      => $this->input->post('phone'),
            'mob'        => $this->input->post('mob'),
            'address'    => $this->input->post('address'),
            'company'    => $this->input->post('company'),
            'agentcode'  => $this->input->post('agentcode')
        );
    }
    if ($this->form_validation->run() == true && $this->ion_auth->register($username, $password, $email, $additional_data))
    {
        //check to see if we are creating the user
        //redirect them back to the admin page
        $this->session->set_flashdata('message', $this->ion_auth->messages());
        redirect("main/users", 'refresh');
    }
    else
    {
        //display the create user form
        //set the flash data error message if there is one
        $this->data['message'] = (validation_errors() ? validation_errors() : ($this->ion_auth->errors() ? $this->ion_auth->errors() : $this->session->flashdata('message')));

        $this->_render_page('registration', $this->data);
    }
}

but it doesn't work and it shows the default message for required validation! even i cant set the message manually by callback function just for this rule whats the problem?

Answer 1

According to CI user guide, you should pass the rule as the first parameter to the set_message() method, NOT the input name:

$this->form_validation->set_message('rule', 'Error Message');

In your case, it should be:

$this->form_validation->set_message('required', 'برای ایجاد یک حساب کاربری، باید قوانین سایت را مطالعه کرده و موافقت خود را با آن اعلام نمایید.');

but just i want to set message for accept field.

Then you need to use a callback function as the validation rule, as follows:

$this->form_validation->set_rules('accept', 'Accept', 'callback_accept_check');

Then within the Controller add a method called accept_check. For instance:

public function accept_check($str)
{
    if ($str == '') {
        $this->form_validation->set_message('accept_check', 'برای ایجاد یک حساب کاربری، باید قوانین سایت را مطالعه کرده و موافقت خود را با آن اعلام نمایید.');
        return FALSE;
    } else {
        return TRUE;
    }
}