Node.js 从json创建mongoose模式

我开始玩node.js、express、mongo和所有这些好东西。 我不知道如何为JSON文件定义mongoose模式，如下所示：

[
  {
    "artist" : "Lorem",
    "profile-picture": "/lorem.jpg",
    "bio": "Lorem ipsum dolor sit amet, consectetur.",
    "songs": [
      {
        "id": 0,
        "name": "Lorem ipsum",
        "url": "/lorem.mp3",
        "length": 34,
        "rating": {
          "likes": 3,
          "likes-timestamps": [
            1436822318,
            1436822321,
            1436822334
          ]
        }
      }
    ]
  }
]

MySchema = new Schema({
  name: String
});

var Song = new Schema({
    "id"      : Number,
    "name"    : String,
    "url"     : String,
    "length"  : Number,
    "rating"  : {
        "likes": Number,
        "likes-timestamps": [Number]
    }
});

var Artist = new Schema({
    "artist"            : String,
    "profile-picture"   : String,
    "bio"               : String,
    "songs"             : [Song]  
});

mongoose.model('Artist', Artist);

在我遇到的每一个教程中，它都过于简化为以下内容：

[
  {
    "artist" : "Lorem",
    "profile-picture": "/lorem.jpg",
    "bio": "Lorem ipsum dolor sit amet, consectetur.",
    "songs": [
      {
        "id": 0,
        "name": "Lorem ipsum",
        "url": "/lorem.mp3",
        "length": 34,
        "rating": {
          "likes": 3,
          "likes-timestamps": [
            1436822318,
            1436822321,
            1436822334
          ]
        }
      }
    ]
  }
]

MySchema = new Schema({
  name: String
});

var Song = new Schema({
    "id"      : Number,
    "name"    : String,
    "url"     : String,
    "length"  : Number,
    "rating"  : {
        "likes": Number,
        "likes-timestamps": [Number]
    }
});

var Artist = new Schema({
    "artist"            : String,
    "profile-picture"   : String,
    "bio"               : String,
    "songs"             : [Song]  
});

mongoose.model('Artist', Artist);

我不确定是否嵌套这些对象和数组等。

---

提前感谢。

根据嵌入式文档的指南，您可以定义如下模式：

[
  {
    "artist" : "Lorem",
    "profile-picture": "/lorem.jpg",
    "bio": "Lorem ipsum dolor sit amet, consectetur.",
    "songs": [
      {
        "id": 0,
        "name": "Lorem ipsum",
        "url": "/lorem.mp3",
        "length": 34,
        "rating": {
          "likes": 3,
          "likes-timestamps": [
            1436822318,
            1436822321,
            1436822334
          ]
        }
      }
    ]
  }
]

MySchema = new Schema({
  name: String
});

var Song = new Schema({
    "id"      : Number,
    "name"    : String,
    "url"     : String,
    "length"  : Number,
    "rating"  : {
        "likes": Number,
        "likes-timestamps": [Number]
    }
});

var Artist = new Schema({
    "artist"            : String,
    "profile-picture"   : String,
    "bio"               : String,
    "songs"             : [Song]  
});

mongoose.model('Artist', Artist);

然后，您的

艺术家

文档的歌曲键将成为

DocumentArray

的一个实例。这是一个特殊的子类

Array

，可以处理强制转换，并具有处理嵌入文档的特殊方法