Search In Realtion Fields

Hi,

I do not get the right search result in a tabular input view ( = batchUpdate), when I use a related field for search.

The search is working with "normal" fields of the table but after input of a search criteria in a related field I get all records of the data table.

I use the same search form, that I also use in /view/admin view CGridView. With CGridView I can search in each field of the form - also in related fields. Everything is working.

Therefore I assume, that the search form is ok and the search method in the model does the job.

I think, the bug must be in the controller code of my batchUpdate action. But I am not able to find the fault. By the way: The pagination works, also saving of data in that tabular input form works ...

        public function actionBatchUpdate()
        {
            $model=new Noten();
            $criteria = new CDbCriteria();
 
            if(isset($_GET['Noten'])) {
		$model->unsetAttributes();
                $model->attributes = $_GET['Noten'];
            }

            $dataProvider =  $model->search();

            $criteria = $dataProvider->criteria;
            $count=$model->count($criteria);

            $pages=new CPagination($count);
            $pages->pageSize=6;
            $pages->applyLimit($criteria);

            $items = $dataProvider->data;

            if(isset($_POST['Noten'])) {
                $valid=true;
                foreach($items as $i=>$item)
                {
                    if(isset($_POST['Noten'][$i]))
                        $item->attributes=$_POST['Noten'][$i]; 
                        $valid=$item->validate() && $valid;
                        $item->save();
                }
            }

            $this->render('batchUpdate', array(
                'model' => $model,
                'items' => $items,
                'pages' => $pages,
            ));
        }

Thank you for hints.