快速/MongoDB日期格式以匹配mongo文档中的req.params日期

Question

我有一个存储日期的MongoDB集合(SlopeDay)。

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在我的快速路由中，我希望将日期格式化为MM-DD-YYYY，这样我就可以将其用于URL。该URL将找到所有具有匹配日期和匹配resortNames的文档。

dateRouter.get("/:formattedDate", (req, res) => {
  const formattedDate = req.params.formattedDate;

  SlopeDay.find({}) // isolate dates
    .then((dateObj) => {
      dateObj.forEach((date, i) => {
        let dateStr =
          // MM-DD-YYYY reformatting to string
          ("0" + (date.date.getMonth() + 1)).slice(-2) +
          "-" +
          ("0" + date.date.getDate()).slice(-2) +
          "-" +
          date.date.getFullYear();
         // map below doesn't seem to be doing much
        const objWithFormattedDate = dateObj.map((obj) => {
          return { ...obj, formattedDate: dateStr, isNew: true };
        });
        // console.log(objWithFormattedDate);
      });
    });
});

我对如何做好这件事感到不知所措。我需要get路由访问所有的SlopeDay文档匹配日期的MM-DD-YYYY参数URL。

Answer 1

我可以通过解锁和查询的方式让它正常工作：

dateRouter.get("/:formattedDate", (req, res) => {
  const formattedDate = req.params.formattedDate;

  // break up the date
  const targetChars = formattedDate.substring(3, 5);
  const beforeTargetChar = formattedDate.substring(0, 3);
  const afterTargetChar = formattedDate.substring(5);

  // create lower and upper boundaries that straddle the formatted date
  const lowerbound = beforeTargetChar + (targetChars - 1) + afterTargetChar;
  const upperbound =
    beforeTargetChar + (Number(targetChars) + 1) + afterTargetChar;

  SlopeDay.find({
    date: {
      // find docs with dates between the boundaries (THIS SHOULD EQUAL req.params.formattedDate)
      $gte: new Date(lowerbound),
      $lt: new Date(upperbound),
    }, // add 2nd query here
  }).then((dateData) => res.send(dateData));
});

Answer 2

只要使用Javascript，我可以推荐这篇文章也许能帮上忙

否则，您也可以使用许多库来完成此操作。就我个人而言，我喜欢使用Day.JS。他们的格式函数看起来会像这样，如果你想走这条路的话，应该能满足你的需求。

dayjs(yourDateHere).format('MM-DD-YYYY')

干杯!