/**
* @param SS_HTTPRequest $request
* @param SS_HTTPResponse $response
* @return bool
*/
protected function allowSave(SS_HTTPRequest $request, SS_HTTPResponse $response)
{
$vars = array('request' => $request, 'response' => $response, 'member' => \Member::currentUser(), 'session' => \Session::get_all()) + $this->extraExpressionVars;
if (count($this->saveExcludeRules)) {
foreach ($this->saveExcludeRules as $rule) {
if ($this->expressionLanguage->evaluate($rule, $vars)) {
return false;
}
}
}
if (count($this->saveIncludeRules)) {
foreach ($this->saveIncludeRules as $rule) {
if (!$this->expressionLanguage->evaluate($rule, $vars)) {
return false;
}
}
}
return true;
}
/**
* @param $action
*/
protected function onChange($action)
{
$vars = array('item' => $this->owner, 'action' => $action);
$logger = $this->cache->getLogger();
// TODO: A bit complex. Needs refactor
foreach ($this->cache->getConfig() as $name => $inst) {
$hasContainsRules = isset($inst['contains']) && is_array($inst['contains']);
$hasInvalidationRules = isset($inst['invalidation_rules']) && is_array($inst['invalidation_rules']);
// Check to see if there are contains rules, and if there is
// we want to ensure that the invalidation rules are only processed
// if the class at least passes the invalidation rules
if ($hasContainsRules) {
$contains = false;
foreach ($inst['contains'] as $contain) {
if ($this->owner instanceof $contain) {
$contains = $contain;
break;
}
}
// We don't want to do any more processing if the contains
// rules didn't even pass
if (!$contains) {
continue;
}
} else {
$contains = true;
}
if ($hasInvalidationRules) {
foreach ($inst['invalidation_rules'] as $rule) {
if ($this->expressionLanguage->evaluate($rule, $vars) && $contains) {
$this->invalidate($name, sprintf("Cache name '%s' invalidated by rule '%s'", $name, $rule), $logger);
break;
}
}
} elseif ($hasContainsRules && $contains) {
// If there aren't any invalidation rules then invalidate the cache
// simply based on the contains rules passing
$this->invalidate($name, sprintf("Cache name '%s' invalidated as it contains '%s'", $name, $contains), $logger);
}
}
}
