nodejs、postgres、sequelize——不是获取文件名，而是尝试获取完整路径

Question

在将我的图像作为字符串分别存储在 postgres 中之后。当我去路线时，图像看起来像这样（我目前得到的回应）

 "images":"image1.png-2020-11-11T13:15:55.692Z"

我正在尝试这样得到它

"images":["url":"image1.png-2020-11-11T13:15:55.692Z_full","thumbnailUrl":"image1.png-2020- 
11-11T13:15:55.692Z_thumb"]

这是我的获取请求

router.get("/", (req, res) => 
 Post.findAll({
order: [["createdAt", "DESC"]],
include: { model: Post_Image, attributes: ["id", "images"] },
 }).then((posts) => {
const baseUrl = config.get("assetsBaseUrl");

for (let post of posts) {

  const postImages = post.Post_Images;

  const img = postImages.map((post) => post.dataValues);

  const imgFileName = img.map((post) => post.images);

  const IMAGES = imgFileName.map((image) => ({
    url: `${baseUrl}${image}_full.jpg`,
    thumbnailUrl: `${baseUrl}${image}_thumb.jpg`,
  }));
    console.log(IMAGES)
}

res.send(posts);
 });
});

当我做 console.log(IMAGES) 时，这是我的回复

[
  {
   url: 'http://LOCALHOST:PORT/assets/image1.png-2020-11-11T13:15:55.692Z_full.jpg',
   thumbnailUrl: 'http://LOCALHOST:PORT/assets/image1.png-2020-11- 
 11T13:15:55.692Z_thumb.jpg'
  }

]

我正在努力

return{
...post,
images:IMAGES}

但是没有用。

这是我在前往路线时期望从 get 请求中得到的响应：

  "images": [{"url":"http://192.168.1.103:9000/assets/jacket1_full.jpg","thumbnailUrl" :"http://192.168.1.103:9000/assets/jacket1_thumb.jpg"}]

Answer 1

您应该将 Post 模型实例变成普通对象并为每个对象添加 images 属性：

const plainPosts = posts.map(x => x.get({ plain: true }))
const resultPosts = []
for (const post of plainPosts) {
  const { Post_Images, ...postAttributes } = post
  const IMAGES = Post_Images.map((postImage) => ({
    url: `${baseUrl}${postImage.images}_full.jpg`,
    thumbnailUrl: `${baseUrl}${postImage.images}_thumb.jpg`,
  }));
  console.log(IMAGES)
  resultPosts.push({
    ...postAttributes,
    images: IMAGES
  })
}

res.send(resultPosts);

如果你只得到一个 post 那么这应该是这样的：

const plainPost = post.get({ plain: true })
const { Post_Images, ...postAttributes } = plainPost
const IMAGES = Post_Images.map((postImage) => ({
  url: `${baseUrl}${postImage.images}_full.jpg`,
  thumbnailUrl: `${baseUrl}${postImage.images}_thumb.jpg`,
}));
console.log(IMAGES)

res.send({
    ...postAttributes,
    images: IMAGES
  });

nodejs、postgres、sequelize——不是获取文件名，而是尝试获取完整路径

nodejs, postgres, sequelize - instead of getting the filename, trying to get full path

node.js

sequelize.js