在Mongoose模式上保存数组属性 [英] Saving an array property on a Mongoose schema

问题描述

我有一个猫鼬对象架构，看起来类似于以下内容:

I have a mongoose object schema that looks similar to the following:

var postSchema = new Schema({
   imagePost: {
     images: [{
        url: String,
        text: String
     }]
 });

我正在尝试使用以下内容创建新帖子:

I'm trying to create a new post using the following:

var new_post = new Post();
new_post.images = [];
for (var i in req.body.post_content.images) {
  var image = req.body.post_content.images[i];
  var imageObj = { url: image['url'], text: image['text'] };
  new_post.images.push(imageObj);
}
new_post.save();

但是，一旦我保存了帖子，就会使用images属性的空数组来创建帖子.我在做什么错了?

However, once I save the post, it's created with an empty array for the images property. What am I doing wrong?

推荐答案

在新对象中缺少架构的imagePost对象.尝试以下方法:

You're missing the imagePost object of your schema in your new object. Try this instead:

var new_post = new Post();
new_post.imagePost = { images: [] };
for (var i in req.body.post_content.images) {
  var image = req.body.post_content.images[i];
  var imageObj = { url: image['url'], text: image['text'] };
  new_post.imagePost.images.push(imageObj);
}
new_post.save();

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