Yii: Send additional data in yiiGridView.update(), and access it in action & model

additional-data-yii-grid-view-update.php

// file (view): test.php
	<script type="text/javascript">
		jQuery(document).ready(function($)
		{
		  // #f_for_block - is checkbox
			$('#f_for_block').on('change', function()
			{
				var id=this.id, val=$(this).prop('checked')*1, data={};
				data[id]=val; // {f_for_block: 1}
				$('#my-grid-view').yiiGridView('update', {data: data});
			});
		});
	</script>

// actionTest in controller
	public function actionTest()
	{
		$model = new MyModel( 'search' );
		$model->unsetAttributes();
		if ( isset( $_GET[ 'MyModel' ] ) )
			$model->attributes = $_GET[ 'MyModel' ];

    // access additional data
		if ( isset( $_GET[ 'f_for_block' ] ) ) 
		  $model->f_for_block = $_GET[ 'f_for_block' ]; // $model has to be public field f_for_block

		$this->render( 'test', array( 'model' => $model ) );
	}

// using in MyModel
	public $f_for_block; // public field
	public function search()
	{
		$criteria = new CDbCriteria;

		$criteria->compare( 'product_id', $this->product_id, true );
		$criteria->compare( 'product_code', $this->product_code, true );
		$criteria->compare( 'product_name', $this->product_name, true );
		$criteria->compare( 'brand_name', $this->brand_name, true );
		$criteria->compare( 'price_retail', $this->price_retail, true );
		$criteria->compare( 'group_id', $this->group_id );
		$criteria->compare( 'group_title', $this->group_title, true );
		$criteria->compare( 'current_position', $this->current_position );

		if ( $this->f_for_block == 1 ) // using that additional value
		{
			$criteria->addCondition( 'pm=1' )
				->addInCondition( 'pp', array( 1, 3, 4, 5 ) )
				->addCondition( 'cbid=30' )
				->addCondition( 'price_retail>0' );
		}

		return new CActiveDataProvider( $this, array(
			'criteria'   => $criteria,
		) );
	}