/**
* @param HeaderView $view
* @param ColumnInterface|CompoundColumn $column
* @param array $options
*/
public function buildHeaderView(HeaderView $view, ColumnInterface $column, array $options)
{
parent::buildHeaderView($view, $column, $options);
// The header information contains the actual block information (and cache key)
$datagrid = $view->datagrid;
$headers = [];
foreach ($column->getColumns() as $subColumn) {
$headers[$subColumn->getName()] = $subColumn->createHeaderView($datagrid);
}
$view->vars['_sub_headers'] = $headers;
}
/**
* {@inheritdoc}
*/
public function configureOptions(OptionsResolver $resolver)
{
parent::configureOptions($resolver);
$resolver->setDefault('parent_data_provider', null);
$resolver->setAllowedTypes('parent_data_provider', ['Closure', 'null']);
}
