Question

我是MongoDB的新手。我想创建一个集合并将文档插入到该集合中。

我已经创建了一个数据库，也创建了一个集合，但是当集合中有一个有趣的文档时出现错误。

在我的代码下面

db.createCollection("students", {
    validator: {
      $jsonSchema: {
         bsonType: "object",
         required: [ "name", "year", "major", "gpa", "address.city", "address.street" ],
         properties: {
            name: {
               bsonType: "string",
               description: "must be a string and is required"
            },
            gender: {
               bsonType: "string",
               description: "must be a string and is not required"
            },
            year: {
               bsonType: "int",
               minimum: 2017,
               maximum: 3017,
               exclusiveMaximum: false,
               description: "must be an integer in [ 2017, 3017 ] and is required"
            },
            major: {
               enum: [ "Math", "English", "Computer Science", "History", null ],
               description: "can only be one of the enum values and is required"
            },
            gpa: {
               bsonType: [ "double" ],
               minimum: 0,
               description: "must be a double and is required"
            },
            "address.city" : {
               bsonType: "string",
               description: "must be a string and is required"
            },
            "address.street" : {
               bsonType: "string",
               description: "must be a string and is required"
            }
         }
      }
   }
})

在记录中插入记录

db.students.insert({
    name: "Pramod Kushwaha",
    gender:"Male",  
    year: NumberInt(2018),  
    major: "Math",
    gpa: NumberDecimal(3.22),
    address: {
      city: "NYC",
      street: "Narol"
    }
})

遇到错误

WriteResult({
    "nInserted" : 0,
    "writeError" : {
        "code" : 121,
        "errmsg" : "Document failed validation"
    }
})

Answer 1

我得到了答案

db.students.insert({
    name: "Pramod Kushwaha",
    gender:"Male",  
    year: NumberInt(2018),  
    major: "Math",
    gpa: 3.22,
    address: {
      city: "NYC",
      street: "Narol"
    }
})

在上面的插入中，查询在gpa字段中有数据类型问题。我将NumberDecimal(3.22)更改为3.22作为双数据类型值。

在mongodb中插入行时出现错误？

1 个答案: