扩展Codeigniter中的表单验证 [英] Extending form validation in Codeigniter

问题描述

我把这个名为'My_Form_validation.php'的类文件放到'application / core'中，我也试过把它放在'application / libraries'中。

在我的控制器中，我正在使用

$ $ $ this-> form_validation-> set_rules（'user_postcode'，'Postcode'，' valid_postcode |修剪|所需| xss_clean'）;

这是My_Form_validation.php中的内容 - 实际的逻辑在这里没有问题，因为我有一对的选项来实际验证邮政编码。我需要帮助的是理解为什么它没有加载或调用！

我的CI版本是
define（'CI_VERSION'，'2.0.2' ）;

 <？php if（！defined（'BASEPATH'））exit（'No direct script access allowed'） ; 
 $ b $ / ** 
 *表格验证英国邮政编码
 * 
 *检查其有效的邮政编码
 * @author James Mills< james @ koodoocreative.co.uk> 
 * @version 1.0 
 * @package FriendsSavingMoney 
 * / 
 
 class MY_Form_validation extends CI_Form_validation 
 {
 
 function __construct（ ）
 {
 parent :: __ construct（）; 
 log_message（'debug'，'*** Hello from MY_Form_validation ***'）; 
} 
 
函数valid_postcode（$ postcode）
 {
 
 / ** 
 * 
 * UK邮政编码验证表达式来自Wikipedia 
 * http://en.wikipedia.org/wiki/Postcodes_in_the_United_Kingdom 
 * 
 *注意：在插入数据库之前记住strtoupper（）您的邮编！ 
 * 
 * / 
 
 $ pattern =/ ^（GIR 0AA）|（（（A [BL] | B [ABDHLNRSTX]？| C [ABFHMORTVW] | D [ADEGHLNTY] | E [HNX] | F [KY] | G [LUY] | H [ADGPRSUX] | I [GMPV] | JE | K [ATWY] | L [ADELNSU] | M [EKL] | N [EGNPRW] | 2 O [LX] | P [AEHLOR] | R [GHM] | S [AEGKLMNOPRSTY] | T [ADFNQRSW] | UB | W [ADFNRSV] | YO | ZE）[1-9] [？ 0-9] |（（E | N | NW | SE | SW | W）1 | EC [1-4] | WC [12]）[A-HJKMNPR-Y] |（SW | W）（[2- 9] | [1-9] [0-9]）| EC [1-9] [0-9]）[0-9] [ABD-HJLNP-UW-Z] {2}）$ /; 
 
 
 if（preg_match（$ pattern，strtoupper（$ postcode）））
 {
 return TRUE; 
} 
 else 
 {
 $ this-> set_message（'valid_postcode'，'请输入有效的邮政编码'）; 
返回FALSE; 
 
 
 
  

解决方案

因为你扩展了一个CodeIgniter库而不是一个核心组件，所以你希望把它放在 application / libraries （不是 application /核心）。

当然，不要忘记加载 Form_validation 在您的控制器代码中的库。

$ $ $ this-> load-> library（'form_validation'）;

其他要检查的内容：

• 文件名区分大小写（ MY_Form_validation.php 加载，而 My_Form_validation.php 不会） li>
  
• 类名区分大小写（类 MY_Form_validation 扩展 CI_Form_validation ）





参考资料：





• 扩展核心课程


• 扩展本地库





I have placed this class file called 'My_Form_validation.php' into 'application/core' and I have also tried placing it in 'application/libraries'.

In my controller I am using

$this->form_validation->set_rules('user_postcode', 'Postcode', 'valid_postcode|trim|required|xss_clean');

This is whats in My_Form_validation.php - the actual logic is not in question here because I have a couple of options to actually validate the postcode. What I need help with is understanding why it is not loading or getting called!

My CI version is define('CI_VERSION', '2.0.2');

<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');

/**
 * Form validation for UK Postcodes
 * 
 * Check that its a valid postcode
 * @author James Mills <[e-mail]>
 * @version 1.0
 * @package FriendsSavingMoney
 */

class MY_Form_validation extends CI_Form_validation
{

    function __construct()
    {
        parent::__construct();  
        log_message('debug', '*** Hello from MY_Form_validation ***');
    }

    function valid_postcode($postcode)
    {

        /**
         *
         * UK Postcode validation expression from Wikipedia
         * http://en.wikipedia.org/wiki/Postcodes_in_the_United_Kingdom
         *
         * Note: Remember to strtoupper() your postcode before inserting into database!
         *
         */

        $pattern = "/^(GIR 0AA)|(((A[BL]|B[ABDHLNRSTX]?|C[ABFHMORTVW]|D[ADEGHLNTY]|E[HNX]?|F[KY]|G[LUY]?|H[ADGPRSUX]|I[GMPV]|JE|K[ATWY]|L[ADELNSU]?|M[EKL]?|N[EGNPRW]?|O[LX]|P[AEHLOR]|R[GHM]|S[AEGKLMNOPRSTY]?|T[ADFNQRSW]|UB|W[ADFNRSV]|YO|ZE)[1-9]?[0-9]|((E|N|NW|SE|SW|W)1|EC[1-4]|WC[12])[A-HJKMNPR-Y]|(SW|W)([2-9]|[1-9][0-9])|EC[1-9][0-9]) [0-9][ABD-HJLNP-UW-Z]{2})$/";


        if (preg_match($pattern, strtoupper($postcode)))
    {
            return TRUE;
        } 
        else
        {
            $this->set_message('valid_postcode', 'Please enter a valid postcode');
            return FALSE;
        }
    }
}

解决方案

Because you're extending a CodeIgniter library and not a core component, you want to place that in application/libraries (not application/core).

And of course, don't forget to load the Form_validation library within your controller code.

$this->load->library('form_validation');

Other things to check:

• Filename case sensitivity (MY_Form_validation.php loads while My_Form_validation.php won't)
• Class name case sensitivity (class MY_Form_validation extends CI_Form_validation)

Reference material:

• Extending Core Classes
• Extending Native Libraries

这篇关于扩展Codeigniter中的表单验证的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！