唯一的电子邮件地址验证

Question

我一直在调整我从教程和其他帖子看到的唯一的电子邮件验证代码。然而，对我的代码来说，没有任何东西可以完美工作

public function register_client($post_obj) 
{ 
    //client registration 
    $record = array 
    (
     'first_name'  => $post_obj['c_fname'], 
     'last_name'   => $post_obj['c_lname'], 
     'email_address'  => $post_obj['c_eadd'], 
     'password'   => $post_obj['c_pword'], 
     'address'   => $post_obj['c_add'], 
     'tagline'   => $post_obj['c_tagline'], 
     'profile'   => $post_obj['c_profile'], 
     'interests'   => $post_obj['c_interest'], 
     'billing_mode'  => $post_obj['c_bmode'] 
    ); 
    $this->db->insert('client', $record); 
} 

在我的控制器

我有这样的：

public function client_signup_submit() 
{ 
    // completes client registration 

    /*$post_email = $this->input->post('c_eadd'); 
    $this->form_validation->set_rules('c_eadd', 'Email Address', 'required|trim|xss_clean|valid_email|callback_check_duplicate_email[' . $post_email . ']'); 
    $this->form_validation->set_message('check_duplicate_email', 'This email already exits. Please write a new email.'); 

    if ($this->form_validation->run() == FALSE) { 
    // validation failed then do that 
    $this->load->view('client_signup'); 
    } else */ 
    //$this->form_validation->set_rules('c_eadd',Email,'trim|xss_clean|required|valid_email|callback_check_email_exists'); 
    $this->inspire_model->register_client($_POST); 
    redirect("in/client?message=Client Account Registration Completed."); 
} 

我评论过的几行，因为他们并没有无论如何工作。我检查了我的系统/库/ form_validation，它似乎是正确设置。

Answer 1

为什么不做什么文档说：is_unique[users.email]其中users是表和email是您正在检查的字段。 http://ellislab.com/codeigniter/user-guide/libraries/form_validation.html

$this->form_validation->set_rules('c_eadd', 
    'Email Address', 
    'required|trim|xss_clean|valid_email|is_unique[users.email]');