我正在尝试学习一点 MEAN 堆栈,并开始在 thinkster.io 上进行教程。 ,我已经到了需要使用服务器端的部分,老实说,我在一些概念上还遇到很多困难,其中一些我正在理解,但大多数我仍然有点迷失。所以我请求你们的帮助。
第一个文件App.js:
var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var routes = require('./routes/index');
var users = require('./routes/users');
var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/news');
require('./models/Posts');
require('./models/Comments');
var app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');
// uncomment after placing your favicon in /public
//app.use(favicon(__dirname + '/public/favicon.ico'));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use('/', routes);
app.use('/users', users);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
var err = new Error('Not Found');
err.status = 404;
next(err);
});
// error handlers
// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
app.use(function(err, req, res, next) {
res.status(err.status || 500);
res.render('error', {
message: err.message,
error: err
});
});
}
// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
res.status(err.status || 500);
res.render('error', {
message: err.message,
error: {}
});
});
module.exports = app;
第二个文件:Index.js
var express = require('express');
var router = express.Router();
/* GET home page. */
router.get('/', function(req, res) {
res.render('index', { title: 'Express' });
});
module.exports = router;
var mongoose = require('mongoose');
var Post = mongoose.model('Post');
var Comment = mongoose.model('Comment');
router.get('/posts', function(req, res, next) {
Post.find(function(err, posts){
if(err){ return next(err); }
res.json(posts);
});
});
router.post('/posts', function(req, res, next){
var post = new Post(req.body);
post.save(function(err, post){
if(err){return next(err);}
res.json(post);
});
});
第三个文件,我在其中创建了帖子和评论的模型:
Posts.js:
var mongoose = require('mongoose');
var PostSchema = new mongoose.Schema({
title: String,
link: String,
upvotes: {type: Number, default: 0},
comments: [{ type: mongoose.Schema.Types.ObjectId, ref: 'Comment' }]
});
mongoose.model('Post', PostSchema);
评论.js:
var mongoose = require('mongoose');
var CommentSchema = new mongoose.Schema({
body: String,
author: String,
upvotes: {type: Number, default: 0},
post: { type: mongoose.Schema.Types.ObjectId, ref: 'Post' }
});
mongoose.model('Comment', CommentSchema);
当我执行 npm start 来运行网络时,它给出了架构尚未为模型“Post”注册的错误。 你能帮助我吗? 预先感谢您!
最佳答案
查看app.js文件中require的顺序,一定要有
require('./models/Posts');
行前
var routes = require('./routes/index');
您需要它们的地方。
关于javascript - AngularJS 架构尚未注册型号 'Post',我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/26762913/