mongoose-schema-persistence

mongoose schema persistence mongodb

• 将mongoose schema 序列化为json后, 存储到mongodb
• 从mongodb获取schema, 生成model对象

Install 安装

npm install mongoose-schema-persistence

Use 使用

初始化

const mongoose = require('mongoose');
const connection = mongoose.createConnection('mongodb://localhost:27017/om');
const mongooseSchemaPersistence = require('mongoose-schema-persistence')
// 初始化时需要传入 mongodb connection
const {saveSchema, getModel, loadSchemas} = mongooseSchemaPersistence(connection);

saveSchema 保存schema到mongodb

const LogSchema = new mongoose.Schema({
    accountId: String,
    type: String,
    data: {},
}, {timestamps: true});
saveSchema('log', LogSchema)

loadSchemas 加载数据库中已保存的schema, 并创建model实例

loadSchemas().then(() => {
    console.log(connection.models)
    let model = connection.model('log')
    model.findOne()
});

getModel 获取单个model实例

// getModel()需要loadSchemas()方法执行完成才可以调用, 可以在onLoadSchemas()中传入
onLoadSchemas(() => {
    let model = getModel('log')
    model.findOne()
});