{"message": "notNull Violation: users.firstName cannot be null,\nnotNull Violation: users.lastName cannot be null} 我面臨的錯誤

Question

當用戶注冊時，我讓用戶 model 字段允許 null 為真，然后再次登錄用戶可以上傳他們的個人資料圖片，但是當我測試此代碼時，我遇到錯誤 {"message": "notNull Violation: users.firstName cannot為 null，\nnotNull 違規：users.lastName 不能為 null}？？？

我現在應該怎么辦

const Storage = multer.diskStorage({
  destination: (req, file, cb) => {
      cb(null, './public/images')
  },

  filename: (req, file, callBack) => {
    callback(null, file.fieldname + '-' + Date.now() + path.extname(file.originalname))
},

});

const multerFilter = (req, file, cb) => {
    var ext = path.extname(file.originalname);
    if(ext !== '.png' && ext !== '.jpg' && ext !== '.gif' && ext !== '.jpeg') {
      cb(new Error('Only images are allowed'))
    }
    cb(null, true)
};
const updateFile = multer({
  storage: Storage,
  limits: 3 * 1024 * 1024, //max 3MB file upload
  fileFilter: multerFilter,
});




router.post("/profile" , updateFile.single("upload"), async(req, res)=>{
  console.log('hello')
  console.log(req.file)
  if (req.file == undefined) {
    return res.status(400).json({ message:'please select the file' });
  }
  console.log('inside the db')
  try {
    await users.create({
   image: req.file.filename
  })
  .then(msg=>{
      res.status(200).json({ message: "profile is uploaded successfully!" });
  });
  console.log('outside the db')
  } catch (error) {
    res.status(500).json({ message: error.message });
  }      
});

this is my user model and I am using sequelize


```
import { Sequelize } from "sequelize";
import db from "../config/Database.js";

const Datatypes = Sequelize;

const users  = db.define('users', {
    uuid:{
        type: DataTypes.STRING,
        defaultValue: DataTypes.UUIDV4,
        allowNull: false,
        validate: {
            notEmpty: true
        }
    },
    firstName: {
        type: DataTypes.STRING,
        allowNull: false,
      
    },
    lastName:{
        type: DataTypes.STRING,
        allowNull: false,
        
    },
    email: {
        type: DataTypes.STRING,
        allowNull: false,
        unique: true,
        validate: {
            notEmpty: true,
            isEmail: true,
        },
    },
    password: {
        type: DataTypes.STRING,
        allowNull: false,
        validate: {
            notEmpty: true
        }
    },
    image: {
        type: DataTypes.STRING,
        allowNull: true
    },
    role:{
        type: DataTypes.STRING,
        allowNull: false,
        validate:{
            notEmpty: true
        }
    }
}, {
    freezeTableName: true
})

export default users;
```

Answer 1

在users.create ，您應該傳遞所有必填字段，或者在您只想更新圖像的情況下使用更新（這似乎是您在上面的代碼中想要做的）。

此外，如果第二種情況是您想要的，則此操作應定義為 PUT/PATCH 而不是 POST。