node.js - Mongoose Schema 数字字段的长度是准确的

Question

我有这个 moongoose 模式:

var userSchema = new mongoose.Schema({
    firstname: {
        type: String,
        required: true,
        min: 3,
        max: 24
    },

    lastname: {
        type: String,
        required: true,
        min: 3,
        max: 24
    },

    id: {
        type: Number,
        required: true,
        min: 9,
        max: 9
    },

    mediations: [assetSchema]
});

当我尝试添加 ID 为 320981350 的新用户时，出现下一个验证错误:

{
   "errors": {
        "id": {
            "message": "Path `id` (320981350) is more than maximum allowed value (9).",
            "name": "ValidatorError",
            "properties": {
                "max": 9,
                "type": "max",
                "message": "Path `{PATH}` ({VALUE}) is more than maximum allowed value (9).",
                "path": "id",
                "value": 320981350
            },
            "kind": "max",
            "path": "id",
            "value": 320981350,
            "$isValidatorError": true
        }
    },
    "_message": "User validation failed",
    "message": "User validation failed: id: Path `id` (320981350) is more than maximum allowed value (9).",
    "name": "ValidationError"
}

是否有任何其他方法可以验证 Number 类型字段的准确长度？还是我误解了 Mongoose 存储数字的方式？

Answer 1

min 和 max 不 表示提供的Number 中允许的位数，如错误所述:

(320981350) is more than maximum allowed value (9)

他们的意思是 Number 类型的字段的实际最小值/最大值，例如

{
    type: Number,
    min : 101,
    max : 999
}

• 允许的最大 Number 是 999
• 允许的最小 Number 是 101

在您的情况下，如果您有 9 位数字作为您的 id，请在架构中定义字段，如:

{
    type: Number,
    min : 100000000,
    max : 999999999
}