|
protected generateDependencyData ( |
||
| $cache | the cache component that is currently evaluating this dependency | |
| return | mixed | the data needed to determine if dependency has been changed. |
protected function generateDependencyData($cache)
{
$timestamps = $this->getTimestamps($cache, (array) $this->tags);
$newKeys = [];
foreach ($timestamps as $key => $timestamp) {
if ($timestamp === false) {
$newKeys[] = $key;
}
}
if (!empty($newKeys)) {
$timestamps = array_merge($timestamps, static::touchKeys($cache, $newKeys));
}
return $timestamps;
}