I’m trying go get the better way to manage form displaying / hiding when the form is still empty (or contains input errors) and when it has been validated.
Until now, my controller was:
public function actionRegister()
{
$model = new Model;
if(isset($_POST['ModelRegister']))
{
$model->attributes = $_POST['ModelRegister'];
if($model->validate())
{
Yii::app()->user->setFlash('register', 'Yaaaaahooooo!! :-))');
$this->refresh();
}
}
$this->render('register', array('model' => $model));
}
And my view:
<?php
if(Yii::app()->user->hasFlash('register'))
{
?>
<div class="flash-success">
<?php echo Yii::app()->user->getFlash('register'); ?>
</div>
<?php
}
else
{
?>
<div class="form">
<?php echo CHtml::beginForm(); ?>
<?php echo CHtml::errorSummary($model); ?>
<div class="row">
<?php echo CHtml::activeLabel($model, 'attribute'); ?>
<?php echo CHtml::activeTextField($model, 'attribute') ?>
</div>
(...)
<div class="row submit">
<?php echo CHtml::submitButton('OK'); ?>
</div>
<?php echo CHtml::endForm(); ?>
</div><!-- form -->
<?php
}
?>
So, the presence of a "flash message" in my session was the wayI manage if displaying or not the form in the view. Was a not-too-bad solution… 
Now, I converted my form in a CActiveForm, and this system does not work anymore…
Here is my new controller code…
public function actionRegister()
{
$model = new Model;
$this->performAjaxValidation($model);
if(isset($_POST['ModelRegister']))
{
$model->attributes = $_POST['ModelRegister'];
if($model->validate())
{
Yii::app()->user->setFlash('register', 'Yaaaaahooooo!! :-))');
$this->refresh();
}
}
$this->render('register', array('model' => $model));
}
protected function performAjaxValidation($model)
{
if(isset($_POST['ajax']) && $_POST['ajax'] === 'model-register')
{
echo CActiveForm::validate($model);
Yii::app()->end();
}
}
And my new view:
<?php
if(Yii::app()->user->hasFlash('register'))
{
?>
<div class="flash-success">
<?php echo Yii::app()->user->getFlash('register'); ?>
</div>
<?php
}
else
{
?>
<div class="form">
<?php $form=$this->beginWidget('CActiveForm', array(
'id' => 'model-register',
'enableAjaxValidation' => true,
)); ?>
<p class="note">Fields with <span class="required">*</span> are required.</p>
<?php echo $form->errorSummary($model); ?>
<div class="row">
<?php echo $form->labelEx($model, 'attribute'); ?>
<?php echo $form->textField($model, 'attribute'); ?>
<?php echo $form->error($model, 'attribute'); ?>
</div>
(...)
<div class="row buttons">
<?php echo CHtml::submitButton('OK'); ?>
</div>
<?php $this->endWidget(); ?>
</div><!-- form -->
<?php
}
?>
I guess, the Yii::app()->end() function don’t let the “flash message” to be setted?
Or something else happens with that performAjaxValidation() and I must use another way to manage this "success message" being displayed and to validated form being not showed?
Thank for your help…