Mongo 按开始日期和结束日期重叠的日期进行过滤

Question

问题

给定 startQuery 和 endQuery，什么 Mongo 过滤器会找到日期与两个查询值重叠的文档？

我所说的“重叠”是指匹配文档具有：

1. start 在 startQuery 之前以及
2. end 在 endQuery 之后> 并且
3. 日期位于 startQuery 和 endQuery 之间

---

预期行为

startQuery 和 endQuery：2022-01 -10， 2022-01-20

文档：

[
// 01-01 is before 01-10 and 02-02 is after 01-10
{title: "match1", start: "2022-01-01T00:00:00Z", end: "2022-02-02T00:00:00Z"},

// 01-15 and 01-16 are between 01-10 and 01-15
{title: "notMatch1", start: "2022-01-15T00:00:00Z", end: "2022-01-16T00:00:00Z"},

// 01-16 is not after 01-20
{title: "notMatch2", start: "2022-01-01T00:00:00Z", end: "2022-01-16T00:00:00Z"},
]

返回：

[{title: "match1", start: "2022-01-01T00:00:00Z", end: "2022-12-31T00:00:00Z"}]

---

上下文

这用于查找要在日历的周视图中显示的事件。按 startOfWeek 到 endOfWeek 进行过滤会错过跨度 3 周并与第二周重叠的事件。

我最好的猜测

这是最好的方法吗？如果是这样，我如何将其转换为 Mongo 过滤器？

queryStart = dayjs(start).dayOfYear() //10
queryEnd = dayjs(end).dayOfYear() //20 
queryArray = [10,11,12...18,19,20]    

for each document
   // this document's start and end:
   // 2022-01-01T00:00:00Z, 2022-02-02T00:00:00Z
   eventStart = dayjs(start).dayOfYear() // 1 (01-01)
   eventEnd = dayjs(end).dayOfYear()    //  33 (02-02)
   eventArray = [1,2,3, .... 31,32,33] 

   // true
   isMatch = (
               eventStart not between queryStart and queryEnd 
                &&
               eventEnd not between queryStart and queryEnd 
                &&
               any(eventArray) in (queryArray)
             ) 

Answer 1

db.collection.aggregate([
  {
    "$match": {
      start: {
        "$lte": "2022-01-10"
      },
      end: {
        "$gte": "2022-01-20"
      }
    }
  }
])

mongoplayground

---

db.collection.aggregate([
  {
    "$match": {
      $expr: {
        "$and": [
          {
            "$lte": [
              { $week: { "$toDate": "$start" } },
              { $week: { "$toDate": "2022-01-10" } }
            ]
          },
          {
            "$gte": [
              { $week: { "$toDate": "$end" } },
              { $week: { "$toDate": "2022-01-20" } }
            ]
          }
        ]
      }
    }
  }
])

mongoplayground