如何在Sequelize中检索文件/图像

const { Sequelize, DataTypes, Model } = require('sequelize');
const sequelize = new Sequelize('sqlite::memory:'); // 示例使用SQLite

class Image extends Model {}
Image.init({
  filename: DataTypes.STRING,
  path: DataTypes.STRING,
  uploadDate: DataTypes.DATE
}, { sequelize, modelName: 'image' });

(async () => {
  await sequelize.sync({ force: true });
})();

const fs = require('fs');
const path = require('path');

// 上传文件
async function uploadImage(file) {
  const { filename, mimetype, size } = file;
  const filePath = path.join(__dirname, 'uploads', filename);
  fs.writeFileSync(filePath, file.buffer);

  const image = await Image.create({
    filename,
    path: filePath,
    uploadDate: new Date()
  });

  return image;
}

// 检索文件
async function getImageById(id) {
  const image = await Image.findByPk(id);
  if (image) {
    return {
      ...image.dataValues,
      fileContent: fs.readFileSync(image.path)
    };
  }
  return null;
}