Question

我有一个领域，并且在我所有的模型中都起着作用。

我在模型中的其他文件中创建了一个BaseSchema：

const mongoose = require("mongoose");
const Schema = mongoose.Schema;
var util = require('util');

function BaseSchema() {
    Schema.apply(this, arguments);

  this.add({
    owner: { type:String },
    updateDate: { type: String },
    updateBy: { type: String },
    deleteDate: { type: String },
    deleteby: { type: String },
    createDate: { type: String },
    createBy: { type: String },
  });
}

util.inherits(BaseSchema, Schema);

我在BaseSchema中使用了RoleSchema：

const mongoose = require("mongoose");
const schema = mongoose.Schema;
const BaseSchema = require("./baseEntity");

const RoleSchema = new BaseSchema.add({
  name: { type: String, require: true },
  description: { type: String },
  scurityStamp: { type: String, require: true },
});

RoleSchema.pre('save',()=>{
    scurityStamp='kianoush'
})
mongoose.model('Roles',RoleSchema);

但是当我运行项目时，它向我显示此错误：

 const RoleSchema = new BaseSchema.add({
                   ^

TypeError: BaseSchema.add is not a constructor
    at Object.<anonymous> (F:\Projects\Nodejs\SalesSignal\src\entity\role.js:5:20)

什么是prboem？我该如何解决这个问题？

Answer 1

我认为这可以简化，因为您基本上是在尝试扩展BaseSchema：

import { model, Schema } from 'mongoose';

const BaseSchema = new Schema({
    owner: { type:String },
    updateDate: { type: String },
    updateBy: { type: String },
    deleteDate: { type: String },
    deleteby: { type: String },
    createDate: { type: String },
    createBy: { type: String },
});

const RoleSchema = new Schema({
  ...BaseSchema.obj,
  name: { type: String, required: true },
  description: { type: String },
  scurityStamp: { type: String, required: true },
});

// test
const RoleModel = mongoose.model('roles', RoleSchema);
const role = new RoleModel({ name: 'test', scurityStamp: 'test', owner: 'someOwner', createDate: new Date() });
await role.save();

在猫鼬和nodejs中扩展架构

1 个答案: