Question

我正在尝试构建一个简单的网站，用户可以在该网站上发布图片，其他用户也可以对该图片发表评论，但是在引用其他架构时我一直停留在该网站上。

针对camground.js的模式，签入camgrounds集合时注释的数组为空。

var mongoose = require("mongoose");

var commentSchema = mongoose.Schema({
    text: String,
    author: String
});

module.exports = mongoose.model("Comment", commentSchema);

评论模式。

var mongoose = require("mongoose");
var Campground = require("./models/campground");
var Comment   = require("./models/comment");

var data = [
    {
        name: "Cloud's Rest", 
        image: "https://farm4.staticflickr.com/3795/10131087094_c1c0a1c859.jpg",
        description: "blah blah blah"
    },
    {
        name: "Desert Mesa", 
        image: "https://farm4.staticflickr.com/3859/15123592300_6eecab209b.jpg",
        description: "blah blah blah"
    },
    {
        name: "Canyon Floor", 
        image: "https://farm1.staticflickr.com/189/493046463_841a18169e.jpg",
        description: "blah blah blah"
    }
]

function seedDB(){
   //Remove all campgrounds
   Campground.remove({}, function(err){
        if(err){
            console.log(err);
        }
        console.log("removed campgrounds!");
         //add a few campgrounds
        data.forEach(function(seed){
            Campground.create(seed, function(err, campground){
                if(err){
                    console.log(err)
                } else {
                    console.log("added a campground");
                    //create a comment
                    Comment.create(
                        {
                            text: "This place is great, but I wish there was internet",
                            author: "Homer"
                        }, function(err, comment){
                            if(err){
                                console.log(err);
                            } else {
                                campground.comments.push(comment);
                                campground.save();
                                console.log("Created new comment");

                              // console.log(comment);
                            }
                        });
                }
            });
        });
    }); 
    //add a few comments
}

module.exports = seedDB;

我已经在seeds.js中对注释进行了硬编码，并在此处使用了填充，但是camcollection集合没有注释的对象ID，请帮忙。

url

Answer 1

代替

QString

做

import sip
sip.setapi('QString', 1)

编辑：

编写一个快速脚本来测试您的方案。请参见下面的脚本。它可以很好地将所有实体与注释一起保存到数据库。运行脚本后从mongo附加了结果。检查我是否想念东西

campground.comments.push(comment);

结果：

campground.comments.push(comment._id);

在Moongoose中引用另一个模式

1 个答案: