CActiveForm验证的问题 [ 新手入门 ]

印象中不会。看下别人写的了

可以的：

<?php $form = $this->beginWidget('CActiveForm', array(
      'id'=>'user-form',
      'enableAjaxValidation'=>true,
      'enableClientValidation'=>true,
      'focus'=>array($model,'firstName'),
)); ?>

详情见：http://www.yiiframework.com/doc/api/1.1/CActiveForm

这个不是一般的验证嘛~~这个我懂,问题是他要实现没有验证通过显示图片～然后验证通过了显示成功的图片。。感觉要通过js的方式来验证吧,通过ajax先判断,然后输出相对应的图片,这样么

请小龙给出具体是用什么方法或者属性。因为就像前面我提到过的正常的验证这个是没问题。能够实现。
关键是我在验证前有提示语，验证通过后要显示一个绿色的小勾。

没验证通过显示图片可以通过css来控制，但是验证前显示提示语，验证错误后把提示语用错误代替，然后验证通过后显示绿色小勾这个现在不知怎么处理。

http://www.yiiframework.com/doc/api/1.1/CActiveForm 文档里是这么说的：

What makes CActiveForm extremely useful is its support for data validation. CActiveForm supports data validation at three levels:

server-side validation: the validation is performed at server side after the whole page containing the form is submitted. If there is any validation error, CActiveForm will render the error in the page back to user.
AJAX-based validation: when the user enters data into an input field, an AJAX request is triggered which requires server-side validation. The validation result is sent back in AJAX response and the input field changes its appearance accordingly.
client-side validation (available since version 1.1.7): when the user enters data into an input field, validation is performed on the client side using JavaScript. No server contact will be made, which reduces the workload on the server.

可以通过Ajax或客户端验证。

<?
    $form = $this->beginWidget('CActiveForm', array(
    'id'=>$name,
    'enableAjaxValidation'=>true,
    'enableClientValidation'=>true,
    'clientOptions'=>array(
        'validateOnSubmit'=>true,
        'validateOnChange'=>false,
        'validateOnType'=>false
    ),
    'focus'=>array($model,'subject')
));
?>

问题一：比如现在验证报错了，会显示一个提示框，这个没有问题。但是我输入正确后，报错那个层就会display:none， 但是我具体的需求是不隐藏，而且显示一个绿色的小勾。
问题二：我在用户输入任何信息前会有提示语，怎么在报错的时候把这个提示语隐藏呢？因为在用户输入前报错的那个层也是隐藏的，有错误才会显现。所以感觉应该不能用同一个层。

<div class="row">
    <?php echo $form->labelEx($model,'firstName'); ?>
    <?php echo $form->textField($model,'firstName'); ?>
    <?php echo $form->error($model,'firstName',array(
    'afterValidateAttribute'=>'js:function(form, attribute, data, hasError) { //属性验证后执行
    if (hasError)
        jQuery("#LoginForm_username_em_").val(data[attribute.id]);   //选择器id用FF可以查看
    else 
        jQuery("#LoginForm_username_em_").html("1111111").show();  //这里你就可以实现验证通过显示对勾图片
}')); ?>
</div>

这个给力，可以解决问题

同时附上一篇老外的文章
http://www.yiiframework.com/forum/index.php/topic/35701-displaying-success-messages-in-cactiveform/page__p__171582__hl__cactiveform#entry171582
跳过前面所有内容，直接看如下部分

'clientOptions'=>array('afterValidateAttribute'=>new CJavaScriptExpression("function(form, attribute, data, hasError){
    var id=attribute.id;
    var eid=attribute.errorID;
    
    if(data[id].toString().substring(0,7)=='Success')
    {       $('#'+eid+'.flash-error').css('display','none');
            $('#'+id).parent().children('label.required').css('color','green');
            $('#'+id).css('background','#E6EFC2');
    }
    
    else
    {
            $('#'+eid+'.flash-success').css('display','none');
            $('#'+id).parent().children('label.required').css('color','red');
            $('#'+id).css('background','').addClass('error');
    }
    }")),
                
));

附上文档说明

afterValidateAttribute: function, the function that will be invoked after performing ajax-based validation triggered by a single attribute input change. The expected function signature should be afterValidateAttribute(form, attribute, data, hasError) {...}, where 'form' is the jquery representation of the form object; 'attribute' refers to the js options for the triggering attribute (see error); 'data' is the JSON response from the server-side validation; 'hasError' is a boolean value indicating whether there is any validation error. 

Note that because this option refers to a js function, you should wrap the value with CJavaScriptExpressoin to prevent it from being encoded as a string. This option has been available since version 1.1.3.