Yii search

        public function actionSearch( $q = NULL ) {
            $query= $q;

            $account = new Account( 'search' );

            if ( Yii::app()->request->isAjaxRequest ) {

                if ( isset( $_POST['Account'] ) ) {
                    $account->attributes = $_POST['Account'];
                }

                $accountDataProvider = $account->search();

            } else {

                $accountDataProvider = $account->querySearch( $query);

                if ( empty( $q ) ) {
                    $accountDataProvider->setData( array() );
                }
            }

            $this->render( 'search' , array(
                'accountDataProvider' => $accountDataProvider ,
                'account'             => $account ,
            ) );
        }