为 Node / MongoDB 应用程序播种的最佳方法是什么？

所以，我是 MEAN 堆栈的新手，在尝试为 MongoDB 播种时遇到了困难。我正在使用 Mongoose 与数据库进行通信，并且有大量文档表明我应该能够使用填充的 JSON 文件进行播种。

我尝试过的：

节点 mongo 种子 https://www.npmjs.com/package/node-mongo-seeds;非常简单，但总是在数组末尾抛出错误。 （也许是缺少bson模块的问题？）

{ [Error: Cannot find module '../build/Release/bson'] code: 'MODULE_NOT_FOUND' }
js-bson: Failed to load c++ bson extension, using pure JS version
Seeding files from directory /Users/Antwisted/code/wdi/MEAN/seeds
----------------------
Seeding collection locations
err =  [SyntaxError: /Users/Antwisted/code/wdi/MEAN/seeds/locations.json: Unexpected token {]

猫鼬种子 https://www.npmjs.com/package/mongoose-seed;也非常简单，基本上是在导出到数据库之前将 JSON 对象放入变量中。有希望，但是......更多错误......

Successfully initialized mongoose-seed
[ 'app/models/locationsModel.js' ]
Locations collection cleared
Error creating document [0] of Location model
Error: Location validation failed
Error creating document [1] of Location model
Error: Location validation failed
Error creating document [2] of Location model
Error: Location validation failed...

所以，我的想法是，这可能是 JSON 结构中的语法错误，但尝试并没有产生任何真正的解决方案（或者也许我错过了它？）。我的 JSON 示例：

{
    {
        "header": "Dan's Place",
        "rating": 3,
        "address": "125 High Street, New York, 10001",
        "cord1": -73.0812,
        "cord2": 40.8732,
        "attributes": ["Hot drinks", "Food", "Premium wifi"],
        "hours": [
            {
                "days": "Monday - Friday",
                "hours": "7:00am - 7:00pm",
                "closed": false
            },
            {
                "days": "Saturday",
                "hours": "8:00am - 5:00pm",
                "closed": false
            },
            {
                "days": "Sunday",
                "closed": true
            }
        ],
        "reviews": [
            {
                "rating": 4,
                "id": ObjectId(),
                "author": "Philly B.",
                "timestamp": "new Date('Feb 3, 2016')",
                "body": "It was fine, but coffee was a bit dull. Nice atmosphere."
            },
            {
                "rating": 3,
                "id": ObjectId(),
                "author": "Tom B.",
                "timestamp": "new Date('Feb 23, 2016')",
                "body": "I asked for her number. She said no."
            }
        ]
    },
    {
        "header": "Jared's Jive",
        "rating": 5,
        "address": "747 Fly Court, New York, 10001",
        "cord1": -73.0812,
        "cord2": 40.8732,
        "attributes": ["Live Music", "Rooftop Bar", "2 Floors"],
        "hours": [
            {
                "days": "Monday - Friday",
                "hours": "7:00am - 7:00pm",
                "closed": false
            },
            {
                "days": "Saturday",
                "hours": "8:00am - 5:00pm",
                "closed": false
            },
            {
                "days": "Sunday",
                "closed": true
            }
        ],
        "reviews": [
            {
                "rating": 5,
                "id": ObjectId(),
                "author": "Jacob G.",
                "timestamp": "new Date('Feb 3, 2016')",
                "body": "Whoa! The music here is wicked good. Definitely going again."
            },
            {
                "rating": 4,
                "id": ObjectId(),
                "author": "Tom B.",
                "timestamp": "new Date('Feb 23, 2016')",
                "body": "I asked to play her a tune. She said no."
            }
        ]
    }
}

此外，我不完全确定如何在 JSON 中指定子文档（假设我首先可以使播种过程正常工作）。

这是我的模型：

var mongoose = require('mongoose');

var subHoursSchema = new mongoose.Schema({
    days: {type: String, required: true},
    opening: String,
    closing: String,
    closed: {type: Boolean, required: true}
});

var subReviewsSchema = new mongoose.Schema({
    rating: {type: Number, required: true, min: 0, max: 5},
    author: String,
    timestamp: {type: Date, "default": Date.now},
    body: String
}); 

var locationSchema = new mongoose.Schema({
    name: {type: String, required: true},
    address: String,
    rating: {type: Number, "default": 0, min: 0, max: 5}, 
    attributes: [String],
    coordinates: {type: [Number], index: '2dsphere'},
    openHours: [subHoursSchema],
    reviews: [subReviewsSchema]
});

mongoose.model('Location', locationSchema);

任何关于如何解决这些问题的见解将不胜感激。谢谢！

您可以使用 CLI 在 CLI 中填充 MongoDBmongoimport https://docs.mongodb.org/manual/reference/program/mongoimport/

它将把一个 JSON 文件加载到指定的 MongoDB 实例和集合中，您所需要的只是一个mongod执行之前要运行的实例。

这里有一个演练 https://docs.mongodb.org/getting-started/shell/import-data/使用的mongoimport.