Laravel 使用 mysql 索引

Question

我有这个糟糕的代码（对不起），它使用了太多的 MySQL 查询对不起它太长了

    return view('dashboard.homepage', array(
            'DriversNumberApproved'      => \App\Models\Drivers::where('is_approved', 1)->count(),
            'DriversNumberUNApproved'      => \App\Models\Drivers::where('is_approved', 0)->count(),
            'DriversOnline'      => \App\Models\Drivers::where('is_active', 1)->count(),
            'DriversOnlineShow'      => \App\Models\Drivers::where('is_active', 1)->paginate(5)->appends(request()->query()),
            'DriversOffline'      => \App\Models\Drivers::where('is_active', 0)->where('is_approved', 1)->count(),
            'TodayMoneyTotal'      => \App\Models\Request::where('is_completed', 1)
                ->whereMonth('request_start_time', now()->month)
                ->whereDay('request_start_time', now()->day)
                ->whereYear('request_start_time', now()->year)->sum('total'),
            'TodayMoneyTotalP'      => \App\Models\Request::where('is_completed', 1)
                ->whereMonth('request_start_time', now()->month)
                ->whereDay('request_start_time', now()->day)
                ->whereYear('request_start_time', now()->year)->sum('total') / 5000 * 100,

            //This Week
            'TodayMoneyTotalWeek'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfWeek(), Carbon::now()])->sum('total'),
            'TodayMoneyTotalWeekP'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfWeek(), Carbon::now()])->sum('total') / 5000 * 100,


            //This Month
            'TodayMoneyTotalMonth'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfMonth(), Carbon::now()
                    ->endOfMonth()])->sum('total'),
            'TodayMoneyTotalMonthP'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfMonth(), Carbon::now()
                    ->endOfMonth()])->sum('total') / 5000 * 100,

//            Last 30 days
//            'TodayMoneyTotal30Last'      => \App\Models\Request::where('is_completed', 1)->whereDate('request_start_time', '=', Carbon::now()->subMonth()->month)->sum('total'),
//            'TodayMoneyTotal30LastP'      => \App\Models\Request::where('is_completed', 1)->whereDate('request_start_time', '=', Carbon::now()->subMonth()->month)->sum('total') / 5000 * 100,


            'TodayTripsTotal'      => \App\Models\Request::where('is_completed', 1)
                ->whereMonth('request_start_time', now()->month)
                ->whereDay('request_start_time', now()->day)
                ->whereYear('request_start_time', now()->year)->count(),
            'TodayTripsTotalP'      => \App\Models\Request::where('is_completed', 1)
                ->whereMonth('request_start_time', now()->month)
                ->whereDay('request_start_time', now()->day)
                ->whereYear('request_start_time', now()->year)->count() / 100 * 100,


            //This Week
            'TodayTripsTotalWeek'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfWeek(), Carbon::now()])->count(),
            'TodayTripsTotalWeekP'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfWeek(), Carbon::now()])->count() / 100 * 100,



            //This Month
            'TodayTripsTotalMonth'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfMonth(), Carbon::now()
                    ->endOfMonth()])->count(),
            'TodayTripsTotalMonthP'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfMonth(), Carbon::now()
                    ->endOfMonth()])->count() / 100 * 100,




            'TodayDistanceTotal'      => \App\Models\Request::where('is_completed', 1)
                ->whereMonth('request_start_time', now()->month)
                ->whereDay('request_start_time', now()->day)
                ->whereYear('request_start_time', now()->year)->sum('distance'),
            'TodayDistanceTotalP'      => \App\Models\Request::where('is_completed', 1)
                ->whereMonth('request_start_time', now()->month)
                ->whereDay('request_start_time', now()->day)
                ->whereYear('request_start_time', now()->year)->sum('distance') / 500 * 100,


            //This week
            'TodayDistanceWeekTotal'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfWeek(), Carbon::now()])->sum('distance'),
            'TodayDistanceWeekTotalP'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfWeek(), Carbon::now()])->sum('distance') / 500 * 100,





            //This Month
            'TodayDistanceMonthTotal'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfMonth(), Carbon::now()
                    ->endOfMonth()])->sum('distance'),
            'TodayDistanceMonthTotalP'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfMonth(), Carbon::now()
                    ->endOfMonth()])->sum('distance') / 500 * 100,






            'TodayTimeTotal'      => \App\Models\Request::where('is_completed', 1)
                ->whereMonth('request_start_time', now()->month)
                ->whereDay('request_start_time', now()->day)
                ->whereYear('request_start_time', now()->year)->sum('time'),
            'TodayTimeTotalP'      => \App\Models\Request::where('is_completed', 1)
                ->whereMonth('request_start_time', now()->month)
                ->whereDay('request_start_time', now()->day)
                ->whereYear('request_start_time', now()->year)->sum('time') / 5000 * 100,


            //This Week
            'TodayTimeWeekTotal'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfWeek(), Carbon::now()])->sum('time'),
            'TodayTimeWeekTotalP'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfWeek(), Carbon::now()])->sum('time') / 5000 * 100,




            //This Month
            'TodayTimeMonthTotal'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfMonth(), Carbon::now()
                    ->endOfMonth()])->sum('time'),
            'TodayTimeMonthTotalP'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfMonth(), Carbon::now()
                    ->endOfMonth()])->sum('time') / 5000 * 100,





            'TodayEarningsTotal'      => \App\Models\Request::where('is_completed', 1)
                ->whereMonth('request_start_time', now()->month)
                ->whereDay('request_start_time', now()->day)
                ->whereYear('request_start_time', now()->year)->sum('refund_remaining'),
            'TodayEarningsTotalP'      => \App\Models\Request::where('is_completed', 1)
                ->whereMonth('request_start_time', now()->month)
                ->whereDay('request_start_time', now()->day)
                ->whereYear('request_start_time', now()->year)->sum('refund_remaining') / 5000 * 100,


            //This Week
            'TodayEarningsWeekTotal'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfWeek(), Carbon::now()])->sum('refund_remaining'),
            'TodayEarningsWeekTotalP'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfWeek(), Carbon::now()])->sum('refund_remaining') / 5000 * 100,



            //This Month
            'TodayEarningsMonthTotal'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfMonth(), Carbon::now()
                    ->endOfMonth()])->sum('refund_remaining'),
            'TodayEarningsMonthTotalP'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfMonth(), Carbon::now()
                    ->endOfMonth()])->sum('refund_remaining') / 5000 * 100,




            //This Week
            'ThisWeekDriverRegistered'      => \App\Models\Drivers::where('is_approved', 1)->whereBetween('created_at', 
                    [Carbon::now()->startOfWeek(), Carbon::now()])->count(),

            'ThisWeekTrips'      => \App\Models\Request::where('is_completed', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfWeek(), Carbon::now()])->count(),

            'ThisWeekAutoCancelledTrips'      => \App\Models\Request::where('is_cancelled', 1)->whereBetween('request_start_time', 
                    [Carbon::now()->startOfWeek(), Carbon::now()])->count(),

            'ThisWeekDriverRegisteredMonday'      => \App\Models\Drivers::where('is_approved', 1)
                ->whereDay('created_at', $monday)
                ->count() / 5000 * 100,
            'ThisWeekTripsMonday'      => \App\Models\Request::where('is_completed', 1)
                ->whereDay('request_start_time', $monday)->count()
                / 500 * 100,
            'ThisWeekAutoCancelledTripsMonday'      => \App\Models\Request::where('is_cancelled', 1)
                ->whereDay('request_start_time', $monday)->count()
                / 500 * 100,

            'ThisWeekDriverRegisteredTuesday'      => \App\Models\Drivers::where('is_approved', 1)
                ->whereDay('created_at', $tuesday)
                ->count() / 5000 * 100,
            'ThisWeekTripsTuesday'      => \App\Models\Request::where('is_completed', 1)
                ->whereDay('request_start_time', $tuesday)->count()
                / 500 * 100,
            'ThisWeekAutoCancelledTripsTuesday'      => \App\Models\Request::where('is_cancelled', 1)
                ->whereDay('request_start_time', $tuesday)->count()
                / 500 * 100,


            'ThisWeekDriverRegisteredWednesday'      => \App\Models\Drivers::where('is_approved', 1)
                ->whereDay('created_at', $wednesday)
                ->count() / 5000 * 100,
            'ThisWeekTripsWednesday'      => \App\Models\Request::where('is_completed', 1)
                ->whereDay('request_start_time', $wednesday)->count()
                / 500 * 100,
            'ThisWeekAutoCancelledTripsWednesday'      => \App\Models\Request::where('is_cancelled', 1)
                ->whereDay('request_start_time', $wednesday)->count()
                / 500 * 100,

            'ThisWeekDriverRegisteredThursday'      => \App\Models\Drivers::where('is_approved', 1)
                ->whereDay('created_at', $thursday)
                ->count() / 5000 * 100,
            'ThisWeekTripsThursday'      => \App\Models\Request::where('is_completed', 1)
                ->whereDay('request_start_time', $thursday)->count()
                / 500 * 100,
            'ThisWeekAutoCancelledTripsThursday'      => \App\Models\Request::where('is_cancelled', 1)
                ->whereDay('request_start_time', $thursday)->count()
                / 500 * 100,

            'ThisWeekDriverRegisteredFriday'      => \App\Models\Drivers::where('is_approved', 1)
                ->whereDay('created_at', $friday)
                ->count() / 5000 * 100,
            'ThisWeekTripsFriday'      => \App\Models\Request::where('is_completed', 1)
                ->whereDay('request_start_time', $friday)->count()
                / 500 * 100,
            'ThisWeekAutoCancelledTripsFriday'      => \App\Models\Request::where('is_cancelled', 1)
                ->whereDay('request_start_time', $friday)->count()
                / 500 * 100,

            'ThisWeekDriverRegisteredSaturday'      => \App\Models\Drivers::where('is_approved', 1)
                ->whereDay('created_at', $saturday)
                ->count() / 5000 * 100,
            'ThisWeekTripsSaturday'      => \App\Models\Request::where('is_completed', 1)
                ->whereDay('request_start_time', $saturday)->count()
                / 500 * 100,
            'ThisWeekAutoCancelledTripsSaturday'      => \App\Models\Request::where('is_cancelled', 1)
                ->whereDay('request_start_time', $saturday)->count()
                / 500 * 100,

            'ThisWeekDriverRegisteredSunday'      => \App\Models\Drivers::where('is_approved', 1)
                ->whereDay('created_at', $sunday)
                ->count() / 5000 * 100,
            'ThisWeekTripsSunday'      => \App\Models\Request::where('is_completed', 1)
                ->whereDay('request_start_time', $sunday)->count()
                / 500 * 100,
            'ThisWeekAutoCancelledTripsSunday'      => \App\Models\Request::where('is_cancelled', 1)
                ->whereDay('request_start_time', $sunday)->count()
                / 500 * 100,

             'TotalBlockedDrivers'      => \App\Models\Drivers::where('block', 1)->count(),
            'role'          => 'admin',
        ));

因为 MySQL 页面上的查询需要永远加载我正在考虑使用索引，但我正在使用 ->这里太多和太多具体的东西有什么帮助吗？我不确定如何优化它，因为加载页面需要很多时间

Answer 1

好的！！让我们去做吧。

首先，我强烈推荐使用barryvdh/laravel-debugbar (GitHub)。这将准确地告诉您触发了多少查询以及每个查询花费了多少时间。

现在，让我们谈谈优化。

• 尽可能使用select()。如果一个表有 20 列和大约 1000 行，而您所做的只是 count() 或 sum()，那么获取所有数据是没有意义的。
• 您的\App\Models\Drivers 被多次使用。这是我推荐的：
  • 查询 1 -> \App\Models\Drivers::where('is_approved', 1)->count();
  • 查询 2 -> \App\Models\Drivers::where('is_approved', 0)->count();
  • 解决方案 -> $drivers = \App\Models\Drivers::whereIn('is_approved', [0, 1])->get();
    在这里您可以使用 Laravel Collection
    $drivers->where('is_approved', 1)->count()
$drivers->where('is_approved', 0)->count()
    在您的查询运行两次之前，现在使用 collect( ) 只有一次。
• Indexing 是另一种解决方案。 看看这个堆栈溢出discussion。
• 如果可以，请使用caching。 (docs)
• 要考虑的另一件事是如何显示这些数据。正如您所说，该页面花费的时间太长。也许，您正在使用嵌套循环。 （不能说太多，因为我没有看到你的刀片文件）。
• 许多开发人员遗漏的另一件事是数据类型不匹配。如果 sql 中的 is_approved 列不是整数，那么在使用 where(string, int) 查询时将导致加载时间。最好有相同的数据类型，即where(int, int)

希望这会有所帮助。干杯！