44      * @param string $members user/group list
47     public function addRule($item, $type, $members)  argument
50         $members = trim($members);
60         if (!$members) {
67         $this->rules[$item] = array($type, $members);
70         $this->applyRule($item, $type, $members);
83         list($type, $members) = $this->rules[$item];
87         $this->ceaseRule($item, $type, $members);
147      * @param string $members user/group list
150     protected function applyRule($item, $type, $members)  argument
152         $users = $this->getAffectedUsers($members);
165      * @param string $members user/group list
168     protected function ceaseRule($item, $type, $members)  argument
170         $users = $this->getAffectedUsers($members);
182      * @param string $members comma separated list of users and groups
185     protected function getAffectedUsers($members)  argument
190         $members = explode(',', $members);
191         $members = array_map('trim', $members);
192         $members = array_filter($members);
193         $members = array_unique($members);
197         foreach ($members as $one) {