Question

在猫鼬中动态创建mongo集合。我尝试了以下代码：建议我


function residenceModel(regionName){
  const residenceSchema = new Schema({
                key:String,
                value:String
            }, { strict: false });

  return mongoose.model(
          `residence_meta_${regionName}`,
           residenceSchema,
          `residence_meta_${regionName}`
       );
}

console.log(residenceModel);

exports.ResidenceModel = residenceModel;

Answer 1

您可以通过以下简单步骤创建动态模型

创建文件dynamicModel.js

const mongoose = require('mongoose')
//import mongoose from 'mongoose'
const Schema = mongoose.Schema

const dynamicModel = (regionName) => {
 const residenceSchema = new Schema({
                key:String,
                value:String
            }, { strict: false })
  return mongoose.model(
            `residence_meta_${regionName}`,
            residenceSchema,
            `residence_meta_${regionName}`
        );
}
module.exports = { dynamicModel }
// export default { dynamicModel }

在要包含或创建模型的文件上，假设app.js

// Please take care of path
const { dynamicModel }  = require("./dynamicModel")
//import { dynamicModel } from "./dynamicModel";
.....
.....
// User this method to create model and use It
const countryModel = dynamicModel("country")
countryModel.create({ key:"country", value:"USA" });

多次使用此方法，试一下，让我知道

Answer 2

我解决了这个问题。下面是代码。你们可以使用它。 function createMetaCollection(regionName){ console.log(regionName); var residenceSchema = new Schema({ region:String, customer_type:String, },{strict: false}); residenceSchema.plugin(autoIncrement.plugin,{model:'resident_meta_'+regionName,field:regionName+'id',startAt:1}); exports.Typeof_employment_meta = mongoose.model('resident_meta_'+regionName,residenceSchema,'resident_meta_'+regionName); }

在猫鼬中动态创建mongo集合

2 个答案: