+ // Get the "rules" value from request
+ $rules = $requestInstance->getRequestElement('rules');
+
+ // Was the "rules" value found in form? And is it set?
+ if (is_null($rules)) {
+ // Not found in form so stop processing here
+ $requestInstance->requestIsValid(false);
+
+ // Add a message to the response
+ $responseInstance->addFatalMessage('rules_unset');
+
+ // Abort here
+ return false;
+ } elseif ($rules != "1") {
+ // Not set, must be "1"!
+ $requestInstance->requestIsValid(false);
+
+ // Add a message to the response
+ $responseInstance->addFatalMessage('rules_unchecked');
+
+ // Abort here
+ return false;
+ }