Question

我编写了一些代码，这些代码应该在特定情况下在特定用户上线时发送推送通知。我需要帮助优化和修复它，因为它有时只能工作，我相信它对我的服务器造成了相当大的影响。

这个工作的系统是一个票务系统。当分配新票证时，假设向具有管理员权限的任何用户发送推送通知，然后当用户被“分配”给票证时，它还应该向他们发送推送通知。我有一些问题，程序向同一个用户发送多个通知，但能够修复它，但现在它只发送它们somtimes（我无法找到它实际工作的模式）

这是我的代码：

Javascript，实际的通知：

    <script>
function notifyMe() {
  if (!Notification) {
    alert('Desktop notifications not available in your browser. Try Chromium.'); 
    return;
  }

  if (Notification.permission !== "granted")
    Notification.requestPermission();
  else {
    var notification = new Notification('You\'ve been added to a ticket!', {
      icon: 'images/trg.jpg',
      body: "You have just been added to a ticket, please check the ticket system for more details.",
      priority: "2",
    });

    notification.onclick = function () {
      window.open("http://example");      
    };

  }

}
</script>
<script>
function notifyAdmin() {
  if (!Notification) {
    alert('Desktop notifications not available in your browser. Try Chromium.'); 
    return;
  }

  if (Notification.permission !== "granted")
    Notification.requestPermission();
  else {
    var notification = new Notification('A new ticket has been added!', {
      icon: 'images/trg.jpg',
      body: "A new ticket has been added!",
      priority: "2",
    });

    notification.onclick = function () {
      window.open("http://example");      
    };

  }

}
</script>

我的php，所有if语句以及何时发送等等。通知是通过函数发送的（sendNotify（）），它实际上只是从之前调用JavaScript。

$configs = include("config.php");

        if (session_status() == PHP_SESSION_NONE) {
            session_start();
        }

        $dsn = 'mysql:dbname='.$configs['SQL-Database'].';host='.$configs['SQL-Host'].''; 
        $user = $configs['SQL-User']; 
        $password = $configs['SQL-Pass']; 

        $con = mysqli_connect($configs['SQL-Host'], $configs['SQL-User'], $configs['SQL-Pass'], $configs['SQL-Database']) or die("Error " . mysqli_error($con));
        $checkTickets = mysqli_query($con, "SELECT * FROM tickets WHERE notified='0'");
        $tcheckTickets = mysqli_num_rows($checkTickets);

        if(($tcheckTickets > 0) && ($_SESSION['Level'] >= 2)) {
            try { 
                $db = new PDO($dsn, $user, $password); 
            } catch (PDOException $e) { 
                echo 'Connection failed: ' . $e->getMessage(); 
            }

            $st = $db->prepare('SELECT UniqueID FROM tickets WHERE notified=0'); 
            $st->execute(); 

            $result = $st->fetchAll(PDO::FETCH_ASSOC); 

            foreach($result as $d){ 
                echo $d['UniqueID'] . "<br/>"; 
                $id = $d['UniqueID']; 
                $st = $db->prepare("UPDATE tickets SET notified=1 WHERE UniqueID=$id"); 
                sendSound();
                sendNotifyAdmin();
                sleep(3);
                $st->execute(); 
            }
        }

        $checkTickets2 = mysqli_query($con, "SELECT * FROM tickets WHERE notified='1'");
        $tcheckTickets2 = mysqli_num_rows($checkTickets2);

        if($tcheckTickets2 > 0) {
            try { 
                $db = new PDO($dsn, $user, $password); 
            } catch (PDOException $e) { 
                echo 'Connection failed: ' . $e->getMessage(); 
            }

            $st = $db->prepare('SELECT * FROM tickets WHERE notified=1'); 
            $st->execute(); 

            $result = $st->fetchAll(PDO::FETCH_ASSOC); 

            foreach($result as $d){ 
                if(strcmp($d['Assigned'],$_SESSION['Name']) == 0) {
                    echo $d['UniqueID'] . "<br/>"; 
                    $id = $d['UniqueID']; 
                    $st = $db->prepare("UPDATE tickets SET notified=2 WHERE UniqueID=$id");
                    sendSound();
                    sendNotify();
                    sleep(3);
                    $st->execute(); 
                }
            }           
        }

目前的工作原理如下：

提交故障单时，数据库中“已通知”列中的值为0。我之前输入的脚本每隔几秒刷新一次，并首先检查notified等于0的任何票证，如果找到任何票证，它应该通过管理员权限向在线任何用户发送通知。然后，脚本检查任何等于1的notified，并向分配给故障单的任何用户发送消息，然后在notified等于2时停止。

我绝对愿意接受任何使这更容易，负载更少且实际工作正常的系统。我也欢迎提出如何改进现有代码以便更好地工作的建议。

向特定在线用户发送通知

0 个答案: