public function sequenceGridListFilters(&$filters, $items, &$parameters = [])
{
if ($allFilter = Application::get_current_page()->FilterAll()) {
$allTag = $allFilter->Filter;
$allItemCount = 0;
} else {
$allItemCount = $items->count();
$allTag = '';
}
foreach ($filters as $filter) {
$itemCount = 0;
$tag = $filter->ModelTag;
/** @var \DataObject|HasGridListFilters $item */
foreach ($items as $item) {
if ($item->hasExtension(HasGridListFilters::class_name())) {
if ($item->GridListFilters()->find('ModelTag', $tag)) {
$itemCount++;
} else {
if ($allTag == 'all' || $allTag && $item->GridListFilters()->find('ModelTag', $allTag)) {
$allItemCount++;
}
}
}
}
// don't recount 'all filter' after first pass
$allTag = false;
$filter->ItemCount = max($itemCount - 1, 0);
}
$parameters[self::AllItemCountKey] = max($allItemCount - 1, 0);
}
public function defaultFilter()
{
if ($page = Application::get_current_page()) {
if ($page->hasMethod('DefaultFilter')) {
return $page->DefaultFilter();
}
}
}
/**
* Expects parameters 'start' and 'limit' to be set, limits items by filter to page length
*
*
* @param \SS_LIst $items
* @param $filters
* @param array $parameters
*/
public function sequenceGridListItems(&$items, $filters, &$parameters = [])
{
$out = new \ArrayList();
$start = $parameters[Constraints::StartIndexGetVar];
$limit = $parameters[Constraints::PageLengthGetVar];
if (!is_null($limit)) {
$added = 0;
if ($allFilter = Application::get_current_page()->FilterAll()) {
// first add 'all filter' items
if ($allTag = $allFilter->Filter) {
$index = 0;
$added = 0;
foreach ($items as $item) {
$index++;
if ($index < $start) {
continue;
}
if ($allTag == 'all' || $item->GridListFilters()->find('ModelTag', $allTag)) {
// we don't add all, we're just getting the count
// $out->push($item);
$added++;
}
if ($added >= $limit) {
break;
}
}
}
}
// initial number of 'all filter' items loaded in page
$parameters['AllLoadCount'] = $added;
foreach ($filters as $filter) {
if ($tag = $filter->ModelTag) {
$index = 0;
$added = 0;
foreach ($items as $item) {
$index++;
if ($index < $start) {
continue;
}
if ($item->hasExtension(HasGridListFilters::class_name())) {
if ($item->GridListFilters()->find('ModelTag', $tag)) {
$out->push($item);
$added++;
}
}
if ($added >= $limit) {
break;
}
}
// initial number of items loaded in page (may be less than page length)
$filter->LoadCount = $added;
}
}
$out->removeDuplicates();
$items = $out;
}
}
/**
*
* Use the current page's gridlist_default_mode if set otherwise whatever we had before.
*
* @param array $templateData
* @return array [ 'Mode' => mode e.g. 'grid' or 'list' (or empty if none set)
*/
public function provideGridListTemplateData($templateData = [])
{
$mode = isset($templateData['Mode']) ? $templateData['Mode'] : '';
// page may be null if it's a new page
if ($page = Application::get_current_page()) {
// set to page mode if set, otherwise keep what we have already
$mode = $page->config()->get('gridlist_default_mode') ?: $mode;
}
return ['Mode' => $mode];
}
/**
* Return instance of service that this gridlist is using
*
* @return Service
*/
public static function service()
{
/** @var \Page $page */
$service = '';
if ($page = Application::get_current_page()) {
$service = $page->config()->get('gridlist_service');
}
$service = $service ?: static::config()->get('gridlist_service');
return \Injector::inst()->get($service);
}
