My mistake, I am using CmsInput extension where the post is clean.
I apologise for my mistakeā¦
If someone need this, below is my solution:
...
if (isset($_POST['Post'])) {
$model->attributes = $_POST['Post'];
// Get the original `content` and purify it
$oriPost = Yii::app()->input->getOriginalPost('Post');
$model->content = Yii::app()->input->purify($oriPost['content']);
$model->content = Yii::app()->input->xssClean($model->content);
if ($model->save()) {
$this->redirect(array('view', 'id' => $model->id));
}
}
...