Joomla! 中表单数据验证

在Joomla! 1.5中可以JHTMLBehavior::formvalidation()这一函数进行表单数据验证，这一函数，引入基于mootools的 validate.js ，文件在 media/system/js 目录下。

在引入了validate.js后，只要设置form 的class 就可以对表单进行验证，下面是实例代码：

 <?php JHTMLBehavior::formvalidation(); ?>
<script language="javascript">
function myValidate(f) {
    if (document.formvalidator.isValid(f)) {
        f.check.value='<?=JUtility::getToken()?>';//send token
        return true; 
    }
    else {
        alert('Some values are not acceptable.  Please retry.');
    }
    return false;
}
</script>
<form id="WV-form" method="post" class="form-validate" onSubmit="return myValidate(this);">
<input type="hidden" name="check" value="post"/>
...
<input type="text" name="email" size="30"  class="required validate-email"/>
...
<input type="submit" value="Submit" />
</form>

这段代码只是对email输入字段进行验证，我们需要设置 form的class 为 form-validate，同时设置email输入class为 required validate-email ,如果某一输入不需要验证，可以设置class为 invalid

defined( '_JEXEC' ) or die( 'Restricted access' );  //Verify Joomla enabled
 
$jAp=&amp; JFactory::getApplication();
if ($_POST['check']!=JUtility::getToken()) {
    //First verify if by a javascript error or other possibilities the form has not been submitted without the validation
    if ($_POST['check']=='post')    $jAp->enqueueMessage('Please check all the fields of the form, aub.<br/>
If your browser blocks javascript, then this form will never be succesfull.  This is a security measure.','error');
    //If then still the check isn't a valid token, do nothing as this might be a spoof attack or other invalid form submission
    return false;
}

以上代码是服务器接收数据，进行几种验证。

Custom handlers

If you want a custome handler, you can add one to the class, as follow example (defined AFTER the validate.js):

Window.onDomReady<span class="br0">(</span><span class="kw2">function</span><span class="br0">(</span><span class="br0">)</span> <span class="br0">{</span>
  document.formvalidator.setHandler<span class="br0">(</span><span class="st0">'birth'</span>, <span class="kw2">function</span><span class="br0">(</span>value<span class="br0">)</span> <span class="br0">{</span>
    regex=/^\d<span class="br0">{</span><span class="nu0">4</span><span class="br0">}</span><span class="br0">(</span>-\d<span class="br0">{</span><span class="nu0">2</span><span class="br0">}</span><span class="br0">)</span><span class="br0">{</span><span class="nu0">2</span><span class="br0">}</span>$/;
    <span class="kw1">return</span> regex.test<span class="br0">(</span>value<span class="br0">)</span>;
  <span class="br0">}</span><span class="br0">)</span>
<span class="br0">}</span><span class="br0">)</span>