Node.js 如何实现模型本身的嵌套-Mongodb&；航行

到目前为止，我已经了解了这3种型号：

用户模型

地图模型

点模型

因此，如果我按用户查询地图，我将得到，即：

{
  "owner": "1",
  "id": "1",
  "spots": [
    {
      "map": "1",
      "title": "Test Spot",
      "content_text": "asdasdasdasdasd",
      "createdAt": "2015-07-14T15:39:50.066Z",
      "updatedAt": "2015-07-14T15:39:50.066Z",
      "id": "1"
    },
    {
      "map": "1",
      "title": "Another Spot",
      "content_text": "hue hue hue hue hue",
      "createdAt": "2015-07-14T15:40:17.313Z",
      "updatedAt": "2015-07-14T15:40:17.313Z",
      "id": "2"
    }
  ],
  "createdAt": "2015-07-14T15:38:32.571Z",
  "updatedAt": "2015-07-14T15:38:32.571Z"
}

此外，我想要的是在斑点中嵌套其他斑点，因此我得到如下结果：

{
      "owner": "1",
      "id": "1",
      "spots": [
        {
          "map": "1",
          "title": "Test Spot",
          "content_text": "asdasdasdasdasd",
          "spots": [
            {
              "map": "1",
              "title": "Nested Spot",
              "content_text": "dfgsdsfasdf",
              "spots": [
                {
                  "map": "1",
                  "title": "Another Nested Spot",
                  "content_text": "sometesxtisdjfiasj",
                  "spots": [
                    {
                       // more nested levels here
                    },
                    {
                       // more nested levels here
                    },
                  ],
                  "createdAt": "2015-07-14T15:39:50.066Z",
                  "updatedAt": "2015-07-14T15:39:50.066Z",
                  "id": "5"
                },
                {
                  // more nested levels here
                },
              ],
              "createdAt": "2015-07-14T15:39:50.066Z",
              "updatedAt": "2015-07-14T15:39:50.066Z",
              "id": "3"
            },
            {
              // another nested Spot which can have a collections of
              // more Nested spots
            },
            {
              // one more nested Spot which can have a collections of
              // more Nested spots
            }
          ],
          "createdAt": "2015-07-14T15:39:50.066Z",
          "updatedAt": "2015-07-14T15:39:50.066Z",
          "id": "1"
        },

所以，基本上，在一张地图中，我希望有多个“起始”点，它们可以有嵌套的级别。我在搜索一些东西，但只能找到与树相关的示例，它们只在左侧和右侧，我希望有两个以上的选项

---

如何在

Sails

模型中编写？这到底可行吗？欢迎提出更好的设计建议。

您的模型是正确的。这是因为SAIL目前不支持嵌套模型的填充。您可以这样做来覆盖默认查询

module.exports = {
    schema: true,

    attributes: {
        // Relations
        map: {
            model: 'Map'
        },

        parentSpot: {
            model: 'Spot'
        },

        subSpotss: {
            collection: 'Spot',
            via: 'parentSpot'
        },
    }
};

{
  "owner": "1",
  "id": "1",
  "spots": [
    {
      "map": "1",
      "title": "Test Spot",
      "content_text": "asdasdasdasdasd",
      "createdAt": "2015-07-14T15:39:50.066Z",
      "updatedAt": "2015-07-14T15:39:50.066Z",
      "id": "1"
    },
    {
      "map": "1",
      "title": "Another Spot",
      "content_text": "hue hue hue hue hue",
      "createdAt": "2015-07-14T15:40:17.313Z",
      "updatedAt": "2015-07-14T15:40:17.313Z",
      "id": "2"
    }
  ],
  "createdAt": "2015-07-14T15:38:32.571Z",
  "updatedAt": "2015-07-14T15:38:32.571Z"
}

{
      "owner": "1",
      "id": "1",
      "spots": [
        {
          "map": "1",
          "title": "Test Spot",
          "content_text": "asdasdasdasdasd",
          "spots": [
            {
              "map": "1",
              "title": "Nested Spot",
              "content_text": "dfgsdsfasdf",
              "spots": [
                {
                  "map": "1",
                  "title": "Another Nested Spot",
                  "content_text": "sometesxtisdjfiasj",
                  "spots": [
                    {
                       // more nested levels here
                    },
                    {
                       // more nested levels here
                    },
                  ],
                  "createdAt": "2015-07-14T15:39:50.066Z",
                  "updatedAt": "2015-07-14T15:39:50.066Z",
                  "id": "5"
                },
                {
                  // more nested levels here
                },
              ],
              "createdAt": "2015-07-14T15:39:50.066Z",
              "updatedAt": "2015-07-14T15:39:50.066Z",
              "id": "3"
            },
            {
              // another nested Spot which can have a collections of
              // more Nested spots
            },
            {
              // one more nested Spot which can have a collections of
              // more Nested spots
            }
          ],
          "createdAt": "2015-07-14T15:39:50.066Z",
          "updatedAt": "2015-07-14T15:39:50.066Z",
          "id": "1"
        },