json - 播种 Node/MongoDB 应用程序的最佳方法是什么？

Question

所以，我是 MEAN 堆栈的新手，我在尝试播种 MongoDB 时碰壁了。我正在使用 Mongoose 与数据库进行通信，并且有一堆文档建议我应该能够使用填充的 JSON 文件进行播种。

我尝试过的:

node-mongo-seed ;非常直截了当，但始终在数组末尾抛出错误。 (也许缺少的 bson 模块有问题？)

{ [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 {]

mongoose-seed ;也很简单，基本上在导出到数据库之前将 JSON 对象放入一个变量中。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，但解决这个问题并没有产生任何真正的解决方案(或者我可能错过了它？)。我的 JSON 样本:

{
    {
        "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(假设我首先可以让播种过程正常工作)。

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);

任何有关如何解决这些问题的见解将不胜感激。谢谢!

Answer 1

您可以使用 mongoimport 在 CLI 中填充 MongoDB

它将一个 JSON 文件加载到指定的 MongoDB 实例和集合中，您只需要一个 mongod 实例在执行之前运行。

这里是 walkthrough使用 mongoimport.