如何在laravel原始查詢中使用案例

Question

我想根據laravel中的當前時間選擇行。 我有一個查詢，但它給出一個空的結果。

$price_calc = DB::table('trip_price_fixing')
            ->select(DB::raw("DATE(D.datumTijd),
     CASE WHEN TIME(D.datumTijd) BETWEEN '08:00:00' AND '14:00:00' THEN 1
          WHEN TIME(D.datumTijd) BETWEEN '14:00:00' AND '20:00:00' THEN 2
          WHEN TIME(D.datumTijd) BETWEEN '20:00:00' AND '24:00:00' THEN 3
     END "));

Answer 1

嘗試在select中分隔字段並命名secound聚合字段（在我的示例中是result ）：

$price_calc = DB::table('trip_price_fixing')
        ->select(DB::raw("DATE(D.datumTijd) as date",
                 DB::raw("(CASE WHEN TIME(D.datumTijd) BETWEEN '08:00:00' AND '14:00:00' THEN 1
                          WHEN TIME(D.datumTijd) BETWEEN '14:00:00' AND '20:00:00' THEN 2
                          WHEN TIME(D.datumTijd) BETWEEN '20:00:00' AND '24:00:00' THEN 3
 END) as result"))->get();

我還認為你必須從查詢中刪除D.命名空間。