Javascript 使用Mongoose在MongoDB中按聚合层次结构进行$match

我尝试使用和regex对以前由

$graphLookup

记录聚合的

$match

我已经在mongoldb shell中测试过了，它很有效！但通过

mongoose

返回空集，同样的查询被破坏了

（免责声明：这与我之前的问题重叠，但有时我需要比like match更大的灵活性，所以我决定再次提问）

比方说，我有：

{ "_id": 1, "name": "Dev", final: false }
{ "_id": 2, "name": "Eliot", "reportsTo": "Dev", final: false }
{ "_id": 3, "name": "Ron", "reportsTo": "Eliot", final: false }
{ "_id": 4, "name": "Andrew", "reportsTo": "Eliot", final: false }
{ "_id": 5, "name": "Andron", "reportsTo": "Eliot", final: false }
{ "_id": 6, "name": "Asya", "reportsTo": "Ron", final: true }
{ "_id": 7, "name": "Dan", "reportsTo": "Andrew", final: true }
{ "_id": 8, "name": "Don", "reportsTo": "Andron", final: true }

按调用聚合

db.employees.aggregate([
  {$match: { final: true }},
  {$graphLookup: {
    from: "employees",
    startWith: "$reportsTo",
    connectFromField: "reportsTo",
    connectToField: "name",
    as: "reporters"
  }},
  {$match: ???}
])

我需要添加什么正则表达式匹配才能获得此结果：

{"_id": 7, "name": "Dan", "reportsTo": "Andrew", final: true,
  "reporters": [
    { "_id": 1, "name": "Dev", final: false },
    { "_id": 2, "name": "Eliot", "reportsTo": "Dev", final: false },
    { "_id": 4, "name": "Andrew", "reportsTo": "Eliot", final: false }
  ]
},
{"_id": 8, "name": "Don", "reportsTo": "Andron", final: true,
  "reporters": [
    { "_id": 1, "name": "Dev", final: false },
    { "_id": 2, "name": "Eliot", "reportsTo": "Dev", final: false },
    { "_id": 5, "name": "Andron", "reportsTo": "Eliot", final: false }
  ]
}

正如我所建议的，它必须通过应用

$match-$和-$regex

来正确解决，由于我的案例限制（我需要动态生成regex规则），我没有能力准备斜杠regex模式

{$match: 
  {$and: [
    {"reporters.name": {$regex: 'Andr(?:ew|on)'}}, 
    {"reporters.name": {$regex: 'Eliot'}}
  ]}
}

它按预期工作

db.employees.aggregate([
  {$match: { final: true }},
  {$graphLookup: {
    from: "employees",
    startWith: "$reportsTo",
    connectFromField: "reportsTo",
    connectToField: "name",
    as: "reporters"
  }},
  {$match: 
    {$and: [
      {"reporters.name": {$regex: 'Andr(?:ew|on)'}}, 
      {"reporters.name": {$regex: 'Eliot'}}
    ]}
  }
])

---

您是否尝试了{$regex:/And/}语法？我想您没有具有此值的文档。mybe您想使用$or而不是$and吗？等一下，我将尝试更清楚地定义输入和输出。