CodeIgniter条件验证

Question

有人可以帮我在CodeIgniter中进行条件字段验证吗？

试图收集一些客户数据，如果用户在邮件单选按钮中选择“是”，则某些字段（如地址，城市，邮政编码等）变为强制性。

我有笨形式验证代码在配置/ form_Validation.php如下：

$config = array ('customer/new_customer' => array 
(
    array ('field' => 'firstName', 'label' => 'First Name', 'rules' => 'required'), 
    array ('field' => 'lastName', 'label' => 'Last Name', 'rules' => 'required'), 
    array ('field' => 'mail', 'label' => 'Mail', 'rules' => 'required'), 
    array ('field' => 'address', 'label' => 'Address','rules' => ''), 
    //other fields here 
) 

）;

我在控制器下面的代码添加/编辑顾客：

function new_customer() 
{ 
$customer_id = $this->input->post('customer_id'); 
if ($this->form_validation->run() == FALSE) 
{ 
    if(($customer_id != "X") && ($customer_id != "")){ 
    $data['add_or_edit'] = "add"; 
    return $this->edit_customer($customer_id, 'add'); 
    }else { 
    $data['title'] = "New Customer"; 
    $data['add_or_edit'] = 'add'; 
    $this->load->view('customer_form_view',$data); 
    } 

}else{ 
    $data['firstName'] = $this->input->post('firstName'); 
    $data['lastName'] = $this->input->post('lastName'); 
    if($this->input->post('mail') == "Yes") 
    { 
    $data['address'] = $this->input->post('address'); 
    $data['city'] = $this->input->post('city'); 
     //other fields 
    } 
    if(($customer_id == 'X') || ($customer_id == '')) 
    { 
    //add new customer 
    $customer_id = $this->customers_model->insertCustomer($data); 
    redirect("/customer/customerList"); 
    }else{ 
    //edit the customer matching the customerID 
    $this->customers_model->editCustomer($customer_id, $data); 
    redirect("/customer/customerlist"); 
    }    
}//end validation if 
}//end function 

我不知道如何使地址，邮政编码等领域的“必要”，如果用户选择“是”为在邮件选项中。

如果有人能帮助我，这将是一件好事。

非常感谢

问候， PS

Answer 1

你可以使用回调函数，如邮件选项验证规则...类似

$this->form_validation->set_rules('mail', 'Mail', 'callback_mail_check'); 

然后在回调函数，你可以有类似

function mail_check($str) 
{ 
    if ($str == 'YES') 
    { 
     $this->form_validation->set_message('mail_check', 'You need to fill other fields.'); 
     return FALSE; 
    } 
    else 
    { 
     return TRUE; 
    } 
}