Question

我有一个仪表板，您可以在其中查看收到的未读邮件数量，但是我希望在所有页面上使用此变量在导航栏中创建徽章。如何将此变量返回所有视图？

这是我的DashboardController：

class DashboardController extends Controller
{

public function index()
{
    $spentAmount = 0;
    $ordersPending = 0;
    $ordersCancelled = 0;
    $ordersCompleted = 0;
    $ordersPartial = 0;
    $ordersInProgress = 0;
    $orders = Auth::user()->orders;
    $ticketIds = Ticket::where(['user_id' => Auth::user()->id])->get()->pluck('id')->toArray();
    $unreadMessages = TicketMessage::where(['is_read' => 0])->whereIn('ticket_id', $ticketIds)->whereNotIn('user_id', [Auth::user()->id])->count();
    $supportTicketOpen = Ticket::where(['status' => 'OPEN', 'user_id' => Auth::user()->id])->count();

    foreach ($orders as $order) {
        if (strtolower($order->status) == 'pending') {
            $spentAmount += $order->price;
            $ordersPending++;
        } elseif (strtolower($order->status) == 'cancelled') {
            $ordersCancelled++;
        } elseif (strtolower($order->status) == 'completed') {
            $spentAmount += $order->price;
            $ordersCompleted++;
        } elseif (strtolower($order->status) == 'partial') {
            $spentAmount += $order->price;
            $ordersCompleted++;
        } elseif (strtolower($order->status) == 'inprogress') {
            $ordersInProgress++;
        }
    }
    return view('dashboard', compact(
        'spentAmount',
        'ordersPending',
        'ordersCancelled',
        'ordersCompleted',
        'unreadMessages',
        'ordersPartial',
        'supportTicketOpen',
        'ordersInProgress'
    ));


}

}

Answer 1

有三种解决挑战的方法

*中间件
* BaseClass
* JavaScript

中间件和基本控制器是相似的方法

中间件

public function handle($request, Closure $next)
{
    $notificationCount = 1;// query the database here and get notification for your

    // add $notificationCount to your request instance
    $request->request->add(['notificationCount' => $notificationCount]);

    // call the middleware next method and you are done.
    return $next($request);
}

现在您可以将此中间件附加到您的路由或一组路由中

BaseController

class MyController extends Controller
{
    function __construct()
    {
        $this->middleware(function ($request, $next) {

            $notificationCount = 1;// query the database here and get notification for your

            // add $notificationCount to your request instance
            $request->request->add(['notificationCount' => $notificationCount]);

            // call the middleware next method and you are done.
            return $next($request);
        });
    }
}

现在您可以使用MyController而不是Controller扩展控制器，然后可以使用类似的东西

{{ request('notificationCount') }}

JavaScript

创建一个函数/控制器并返回要返回的通知数

class NotificationCounterController extends Controller
{
    function getNotificatioCount()
    {
        $notificationCount = 1;
        return ['count' => $notificationCount];
    }
}

不是，您可以在文档加载事件中进行Ajax调用。

如果要每隔几次更新通知，这很好。就像您可以每5秒拨打一次ajax电话。

Laravel-来自控制器全局的未读消息计数

1 个答案: