将一个模式的值推入另一个模式

Question

我有一个文件 ./models/Image.js

const { Schema, model } = require('mongoose');

const imageSchema = new Schema({
    title: {type: String},
    description: {type: String},
    author:{type:String},
    filename: {type: String},
    path: {type: String},
    originalname: {type: String},
    mimetype: {type: String},
    size: { type: Number},
    created_at: {type: Date, default: Date.now()},
    authorname:{type:String}
});
module.exports = model('Image', imageSchema);

我还有另一个文件 ./models/User.js

const mongoose = require('mongoose');

const UserSchema  = new mongoose.Schema({
  name :{type:String,required : true} ,
  email :{type  : String,required : true} ,
  password :{type  : String,required : true} ,
  date :{type : Date,default : Date.now}
});

const User= mongoose.model('User',UserSchema); 
                                            
module.exports = User;

和路由/用户内部的函数

router.post('/upload', async (req, res) => {
    const image = new Image();
    image.title = req.body.title;
    image.description = req.body.description;
    image.filename = req.file.filename;
    image.path = '/img/uploads/' + req.file.filename;
    image.originalname = req.file.originalname;
    image.mimetype = req.file.mimetype;
    image.size = req.file.size;
    //image.authoremail= User.req.email; // what should i do here
    
    await image.save();
    res.redirect('/user/feed');
});

我想要的是将用户名和电子邮件放入图像架构中，以便我可以比较它以供以后使用 例如，在仪表板用户的页面中，仅显示他/她上传的图片，但在页面内“提要”所有用户的图片都显示有各自的名称

Answer 1

在我看来，您应该在图像架构中添加用户名和电子邮件字段。然后设置 required = false，如果不是每种情况都需要，或者您可以通过在模式中设置严格 = false 来添加它而不自定义模式。它允许您保存或更新您的案例中的文档。

这是显示如何设置 strict = false 的答案 https://stackoverflow.com/a/50935227/15072782

Answer 2

您可以使用参考文档概念来更改图像架构。这样您就可以只存储用户 ID。

const imageSchema = new Schema({
    title: {type: String},
    description: {type: String},
    author:{type:String},
    filename: {type: String},
    path: {type: String},
    originalname: {type: String},
    mimetype: {type: String},
    size: { type: Number},
    created_at: {type: Date, default: Date.now()},
    authorname: {                                      // update here
      type: Schema.Types.ObjectId, 
      ref: 'User' 
    }
});
module.exports = model('Image', imageSchema);


const mongoose = require('mongoose');

const UserSchema  = new mongoose.Schema({
  name :{type:String,required : true} ,
  email :{type  : String,required : true} ,
  password :{type  : String,required : true} ,
  date :{type : Date,default : Date.now}
});

const User= mongoose.model('User',UserSchema); 
                                            
module.exports = User;