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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,15 @@ abstract class AbstractGridView
*/
private array $availableFilters = [];

/**
* @var array<string, array{
* filter: IViewFilter,
* target: ?string,
* insertBefore: bool,
* }>
*/
private array $extraFilters = [];

/**
* Adds a new column to the grid view.
*/
Expand Down Expand Up @@ -683,22 +692,52 @@ protected function fireInitializedEvent(): void
EventHandler::getInstance()->fire($event);
}

/**
* Validates the configuration of this grid view.
*/
protected function validate(): void
private function buildAvailableFilters(): void
{
$columnFilters = [];
$filters = [];
foreach ($this->getColumns() as $column) {
if ($column->getFilter() !== null) {
$columnFilters[$column->getID()] = $column->getFilter();
$filters[] = $column->getFilter();
}
}

$this->availableFilters = [
...$columnFilters,
...$this->availableFilters,
];
foreach ($this->extraFilters as $filterData) {
$filter = $filterData['filter'];

if ($filterData['target'] === null) {
if ($filterData['insertBefore']) {
\array_unshift($filters, $filter);
} else {
$filters[] = $filter;
}
} else {
$index = \array_find_key(
$filters,
static fn($filterObj) => $filterObj->getId() === $filterData['target']
);
if ($index === null) {
throw new \RuntimeException("Cannot find the target '{$filterData['target']}' for filter '{$filter->getId()}'.");
}

if (!$filterData['insertBefore']) {
$index++;
}

\array_splice($filters, $index, 0, [$filter]);
}
}

foreach ($filters as $filter) {
$this->availableFilters[$filter->getId()] = $filter;
}
}

/**
* Validates the configuration of this grid view.
*/
protected function validate(): void
{
$this->buildAvailableFilters();

if ($this->getDefaultSortField() === '') {
throw new \InvalidArgumentException("Undefined default sort field.");
Expand Down Expand Up @@ -863,7 +902,29 @@ protected function applyFilters(): void

public function addAvailableFilter(IViewFilter $filter): void
{
$this->availableFilters[$filter->getId()] = $filter;
$this->extraFilters[$filter->getId()] = [
'filter' => $filter,
'target' => null,
'insertBefore' => false,
];
}

public function addAvailableFilterBefore(IViewFilter $filter, ?string $targetFilterID = null): void
{
$this->extraFilters[$filter->getId()] = [
'filter' => $filter,
'target' => $targetFilterID,
'insertBefore' => true,
];
}

public function addAvailableFilterAfter(IViewFilter $filter, ?string $targetFilterID = null): void
{
$this->extraFilters[$filter->getId()] = [
'filter' => $filter,
'target' => $targetFilterID,
'insertBefore' => false,
];
}

/**
Expand Down
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