钩子函数的使用

1.注册一个信号，同时传递参数（可以传递多个参数）;

\OC_Hook::emit('OC_User', 'post_deleteUser', array('uid' => $user->getUID()));

2.在需要的地方接收信号，去对应的方法里面去执行函数，函数的参数是由emit发放传递过来的（可以多次调用注册的信号）;

\OC_Hook::connect('OC_User', 'post_deleteUser', 'OC_Team', 'post_deleteUser');
\OC_Hook::connect('OC_User', 'post_deleteUser', 'OC_Agent', 'post_deleteUser');

3.定义具体的方法，在具体类下（OC_Team）定义具体的方法’post_deleteUser’;

class OC_Team{//OC_Team类
public static function post_deleteUser($parameters) {
$uid = $parameters['uid'];
foreach (OC_Team::getAdminsByUid($uid) as $tid) {
                OC_Team::removeAdminFromTeam($uid, $tid);
            }
foreach (OC_Team::getTeamsofUser($uid) as $tid) {
                OC_Team::removeMemberFromTeam($uid, $tid);
            }
return true;
        }

}

//在具体类下(OC_Agent)定义具体的方法'post_deleteUser';
class OC_Agent{//OC_Agent类
public static function post_deleteUser($params)
 {
$uid = $params['uid'];
$agentID = self::getUserAgent($uid);
self::removeAgentAdminUser($agentID, $uid);
self::removeAgentUser($agentID, $uid);
        }

}