Returns an empty DataTable with the same metadata and queued filters as $this one.
|
public getEmptyClone ( boolean $keepFilters = true ) : |
||
| $keepFilters | boolean | Whether to pass the queued filter list to the new DataTable or not. |
| return | ||
/**
* Template method called from self::manipulate.
* Flatten each data table.
*
* @param DataTable $dataTable
* @return DataTable
*/
protected function manipulateDataTable($dataTable)
{
$newDataTable = $dataTable->getEmptyClone($keepFilters = true);
// this recursive filter will be applied to subtables
$dataTable->filter('ReplaceSummaryRowLabel');
$this->flattenDataTableInto($dataTable, $newDataTable);
return $newDataTable;
}
/**
* Template method called from self::manipulate.
* Flatten each data table.
*
* @param DataTable $dataTable
* @return DataTable
*/
protected function manipulateDataTable($dataTable)
{
// apply filters now since subtables have their filters applied before generic filters. if we don't do this
// now, we'll try to apply filters to rows that have already been manipulated. this results in errors like
// 'column ... already exists'.
if (Common::getRequestVar('disable_queued_filters', 0, 'int', $this->request) == 0) {
$dataTable->applyQueuedFilters();
}
$newDataTable = $dataTable->getEmptyClone($keepFilters = false);
foreach ($dataTable->getRows() as $row) {
$this->flattenRow($row, $newDataTable);
}
return $newDataTable;
}
private function makeCloneOfDataTableSites(DataTable $sites)
{
$sitesByGroup = $sites->getEmptyClone(true);
// we handle them ourselves for faster performance etc. This way we also avoid to apply them twice.
$sitesByGroup->disableFilter('ColumnCallbackReplace');
$sitesByGroup->disableFilter('MetadataCallbackAddMetadata');
return $sitesByGroup;
}
