ReportContext::setAttributeFilter

private function setAttributeFilter(Query $query, $field, $name, $value = null)
{
	$query->registerRuntimeField(null, new ReferenceField($field, InternalsContextAttributeTable::getEntity(),
		array('=this.CONTEXT_ID' => 'ref.CONTEXT_ID'),
		array('join_type' => 'INNER')
	));

	$query->addFilter("=$field.NAME" , $name);

	if ($value !== null)
	{
		$query->addFilter("=$field.VALUE", $value);
	}
}