2

所以我对 MongoDB 很陌生，当然，关于文档何时验证失败的反馈有点……没有信息。所以我希望任何人都能看到我犯的错误。

该模式相对简单并且有效：

db.createCollection("observations", {
    autoIndexId : true, 
    validator : { 
        $jsonSchema: {
            bsonType: "object", 
            required: [ "observationTimestamp", "family", "species", "numAnimals" ], 
            properties: { 
                observationTimestamp: { 
                    bsonType: "long", 
                    description: "Time that the animal(s) were observed. Use 'Date.parse()' syntax when inserting records. Required field. Example: 'Date.parse('Tue, 12 Dec 1995 16:17:18 GMT')'." 
                }, 
                family: { 
                    bsonType: "string", 
                    description: "Vernacular name of group which species belongs to. Required field. Must be a string." 
                }, 
                species: { 
                    bsonType: "string", 
                    description: "Scientific name of observed animal. Required field. Must be a string." 
                }, 
                numAnimals: { 
                    bsonType: "int", 
                    minimum: 1,
                    description: "Number of animals observed. Required field. Must be an integer." 
                } 
            } 
        } 
    } 
} );

我在这里使用“long”作为“Date.parse()”，因为我了解到它返回一个 64 位整数。我也尝试使用“日期”和“时间戳”日期类型无济于事。

我的插入是：

db.observations.insert([
    {
        "observationTimestamp" : Date.parse("Mon, 25 Dec 1995 12:34:56 GMT"),
        "family" : "Sharks",
        "species" : "Carcharodon carcharias",
        "numAnimals" : 3
    },
    {
        "observationTimestamp" : Date.parse("Tue, 12 Dec 1995 16:17:18 GMT"),
        "family" : "Sharks",
        "species" : "Carcharias taurus",
        "numAnimals" : 4
    }
]);

运行命令时给出的错误是通用的：

BulkWriteResult({
        "writeErrors" : [
                {
                        "index" : 0,
                        "code" : 121,
                        "errmsg" : "Document failed validation",
                        "op" : {
                                "_id" : ObjectId("5a5e4291aa4da4bdfe1a234c"),
                                "observationTimestamp" : 819894896000,
                                "family" : "Sharks",
                                "species" : "Carcharodon carcharias",
                                "numAnimals" : 3
                        }
                }
        ],
        "writeConcernErrors" : [ ],
        "nInserted" : 0,
        "nUpserted" : 0,
        "nMatched" : 0,
        "nModified" : 0,
        "nRemoved" : 0,
        "upserted" : [ ]
})

这是使用 MongoDB 服务器版本 3.6。我在 Windows 10 平台上运行（如果这意味着什么）。

我唯一能想到的另一件事是将 bsonType 'number' 用于 numAnimals，但这也不起作用。

任何有用的想法或意见将不胜感激！

4

1 回答 1

1

您的验证需要“observationTimestamp”和“numAnimals”作为 int 和 long 类型。

所以在插入时关联正确的类型。

就像是

db.observations.insert([
    {
        "observationTimestamp" : NumberLong(Date.parse("Mon, 25 Dec 1995 12:34:56 GMT")),
        "family" : "Sharks",
        "species" : "Carcharodon carcharias",
        "numAnimals" : NumberInt(3)
    }
]);
于 2018-01-16T19:01:55.473 回答