/**
* Compare the deleted entries.
*
* @return array
*/
private function getDeleted()
{
if ($this->unsaved->isEmpty()) {
// Delete all saved settings.
return $this->saved->map(function (array $settings) {
return array_keys($settings);
})->toArray();
}
$deleted = [];
foreach ($this->unsaved as $domain => $values) {
$diff = array_diff(array_keys($this->saved->get($domain, [])), array_keys($values));
if (!empty($diff)) {
$deleted[$domain] = $diff;
}
}
return $deleted;
}
