ReferenceError：在初始化猫鼬之前无法访问“用户”

Posted 2023-02-16

【中文标题】ReferenceError：在初始化猫鼬之前无法访问“用户”

【英文标题】：ReferenceError: Cannot access 'User' before initialization mongoose

【发布时间】：2022-01-19 18:27:51

【问题描述】：

这个错误由​​猫鼬显示 在 order.model.js:6:52 初始化之前无法访问“用户”

但用户已经在那里

order.js

import mongoose from 'mongoose';
import Product from './product.model.js';
import User from './users.model.js';

const orderSchema = new mongoose.Schema(
    user:  type: mongoose.SchemaTypes.ObjectId, ref: User ,
    products: [ type: mongoose.SchemaTypes.ObjectId, ref: Product ],
    status:  type: String, required: true ,
);

const Order = mongoose.model('Order', orderSchema);

export default Order;

user.js

import mongoose from 'mongoose';
import Order from './order.model.js';

const userSchema = new mongoose.Schema(
    fname:  type: String, required: true ,
    lname:  type: String, required: true ,
    email:  type: String, required: true ,
    phone:  type: Number, required: true ,
    password:  type: String, required: true ,
    orders: [ type: mongoose.SchemaTypes.ObjectId, ref: Order ],
);

const User = mongoose.model('User', userSchema);

export default User;

【参考方案1】：

不需要导入用户模型，试试下面的代码

user:  type: mongoose.SchemaTypes.ObjectId, ref: 'User' ,