CodeIgniter + hmvc form_validation 规则 "is_unique" 未应用

Question

我似乎无法弄清楚我的问题希望有人能提供帮助。我正在使用 codeigniter 3 +HMVC，在我的表单验证中我使用规则 is_unique 它工作完美，除了如果我想使用回调，我需要扩展 CI_form_validation 像这样：

https://bitbucket.org/wiredesignz/codeigniter-modular-extensions-hmvc

"When using form validation with MX you will need to extend the CI_Form_validation class as shown below,"

<?php
/** application/libraries/MY_Form_validation **/ 
class MY_Form_validation extends CI_Form_validation 
{
    public $CI;
}

"before assigning the current controller as the $CI variable to the form_validation library. This will allow your callback methods to function properly. (This has been discussed on the CI forums also)."

<?php
class Xyz extends MX_Controller 
{
    function __construct()
    {
        parent::__construct();

        $this->load->library('form_validation');
        $this->form_validation->CI =& $this;
    }
}

当我进行此修改时，规则 "is_unique" 停止工作。有谁知道它是什么？这是一个错误吗？

这是我的代码：

class Prod_parent extends MY_Controller {

    function __construct() {
        parent::__construct();
        $this->load->library('form_validation');
        $this->form_validation->CI =& $this;
    }

 function submit() {
        $this->form_validation->set_error_delimiters('<p style="color:red;">', '</p>');     
        $this->form_validation->set_rules('grupo', 'nombre del grupo', 'trim|required|is_unique[prod_parent.product]');
        if ($this->form_validation->run() == FALSE) {
            $this->session->set_flashdata('error', validation_errors());
            $this->new();
            die();
        } else {
            die('works great');
        }

感谢大家的帮助....我需要休息一下！

Answer 1

你可以参考这段代码。

if($this->input->post('user_name') != $original_value) {
   $is_unique =  '|is_unique[users.user_name]'
} else {
   $is_unique =  ''
}

$this->form_validation->set_rules('user_name', 'User Name', 'required|trim|xss_clean'.$is_unique);

Answer 2

system/libraries/Form_validation.php 在第 1127 行

将 isset() 更改为 is_object()

public function is_unique($str, $field)
{
    sscanf($field, '%[^.].%[^.]', $table, $field);
    return is_object($this->CI->db)
        ? ($this->CI->db->limit(1)->get_where($table, array($field => $str))->num_rows() === 0)
        : FALSE;
}

Answer 3

在application/libraries/MY_Form_validation中只需使用下面的代码：

<?php
class MY_Form_validation extends CI_Form_validation {

public $CI;

/**
 * Is Unique
 *
 * Check if the input value doesn't already exist
 * in the specified database field.
 *
 * @param   string  $str
 * @param   string  $field
 * @return  bool
 */
public function is_unique($str, $field)
{
    sscanf($field, '%[^.].%[^.]', $table, $field);
    //return isset($this->CI->db)
    return is_object($this->CI->db)
        ? ($this->CI->db->limit(1)->get_where($table, array($field => $str))->num_rows() === 0)
        : FALSE;
}
}

这将覆盖 form_validation class

的 is_unique 方法

CodeIgniter + hmvc form_validation 规则 "is_unique" 未应用

CodeIgniter + hmvc form_validation rule "is_unique" not applied

php

codeigniter

hmvc

codeigniter-3