private function generate_content_cache($work_units, CacheRenderHandler $rh)
{
$content = implode("\n", array_map(function ($u) {
return $u['content'];
}, $work_units));
$key = md5($content . $this->_cfg->getDebugMode());
if ($d = $this->fragment_cache->get($key)) {
return $d;
}
$output = array();
foreach ($work_units as $w) {
$output[] = $rh->getOutput($w);
}
$output = implode("\n", $output);
$this->fragment_cache->set($key, $output);
return $output;
}
