更新子嵌套文档 Mongodb 中的第 n 个元素

Question

我需要更新子嵌套文档中的第 n 个元素：我有这个结构：

{
  "_id" : ObjectId("52fdbbb470c68c3c14d60700"),
  "curations" : [{

      "measurements" : 
      [
        {
          "_id" : ObjectId("52fdbbb470c68c3c14d80700"),
          "name" : "GSM15729",
          "Vals" : ["N/A", "bronchus, lung", "bronchial epithelial cell", "N/A", "N/A", "N/A", "non-smoker", "GPL96"]
        }, 
        {
          "_id" : ObjectId("52fdbbb470c68c3c14d90700"),
          "name" : "GSM104072",
          "Vals" : ["N/A", "bronchus, lung", "bronchial epithelial cell", "N/A", "N/A", "N/A", "current smoker", "GPL96"]
        }

        ]

    }]
}

例如，我想更新最后一个子数组“Vals”中的第 4 个“N/A”（第 5 个位置）

我用命令行尝试了这段代码，但它似乎不起作用

db.Series.find({"curations.measurements._id":new ObjectId("52fdbbb470c68c3c14d90700")},
    { $set: {
        "curations.measurements.$.Vals.4": "new_value"
        }
 });

感谢您的帮助！！！

Answer 1

最后我发现了错误，只是我忘记了一个零......（数组）

db.Series.find({"curations.0.measurements._id":new ObjectId("52fdbbb470c68c3c14d90700")},
    { $set: {
        "curations.0.measurements.$.Vals.4": "new_value" <=In this line
        }
 });