/**
* Returns a template name either from extended models config.gridlist_template of set or from the extended models ClassName. In either case the current
* GridList view mode (grid, list or search) is appended.
*
* @return string
*/
protected function template()
{
$mode = GridList::service()->mode();
if (!($template = $this()->config()->get('gridlist_template'))) {
$template = "GridList/" . $this()->ClassName;
}
return "{$template}" . '_' . $mode;
}
public function constrainGridListItems(&$items)
{
$service = GridList::service();
$currentFilterID = $service->Filters()->currentFilterID();
// filter to current filter if set
if ($currentFilterID) {
$out = new \ArrayList();
foreach ($items as $item) {
if ($item->GridListFilters()->find('ID', $currentFilterID)) {
$out->push($item);
}
}
$items = $out;
}
}
/**
* @param \DataList|\ArrayList $items
* @param $filters
* @param array $parameters
*/
public function sequenceGridListItems(&$items, $filters, &$parameters = [])
{
$limit = isset($parameters['PageLength']) ? $parameters['PageLength'] : null;
// filter items for each filter to current page length
if ($limit) {
$start = GridList::service()->Filters()->start() ?: 0;
$out = new \ArrayList();
$currentFilter = GridList::service()->constraint(Constraints::FilterVar);
if ($currentFilter && $currentFilter != 'all') {
if ($filter = GridListFilter::get()->filter(['ModelTag' => $currentFilter])->first()) {
$out->merge($items->limit($limit, $start));
}
} else {
foreach ($filters as $filter) {
$filtered = new \ArrayList();
foreach ($items as $item) {
if ($item instanceof Block) {
// only push blocks first page
if ($start == 0) {
$filtered->push($item);
}
} else {
if ($currentFilter == 'all') {
$filtered->push($item);
} else {
if ($item->GridListFilters()->find('ID', $filter->ID)) {
$filtered->push($item);
}
}
}
}
// merge limited filtered items back in
$out->merge($filtered->limit($limit, $start));
}
}
$items = $out;
}
}
