Node.js blog example (4) Implementing user pages and article pages_html/css_WEB-ITnose

Chapter 4 of the original tutorial https://github.com/nswbmw/N-blog/wiki/_pages. Due to version reasons, etc., it can be implemented with slight changes based on the original tutorial.

Now, let’s add user pages and article pages to the blog.
The so-called user page means that when you click on a username link, it will jump to: domain name/u/username and list all the articles of the user.
Similarly, the article page means that when you click on the title of an article, it will jump to: domain name/u/user name/time/article name and enter the page of the article.

post.js:

Modify Post.get to Post.getAll, and modify Post.get in index.js to Post.getAll. Add the following code at the end of post.js:

//获取一篇文章Post.getOne = function(name, day, title, callback) {  //打开数据库	mongodb.open(function (err, db) {		if (err) {			return callback(err);		}		//读取 posts 集合		db.collection('posts', function (err, collection) {			if (err) {				mongodb.close();				return callback(err);			}			//根据用户名、发表日期及文章名进行查询			collection.findOne({				"name": name,				"time.day": day,				"title": title			}, function (err, doc) {				mongodb.close();				if (err) {									return callback(err);				}				console.log("333");				console.log(doc);				//解析 markdown 为 html				doc.post = markdown.toHTML(doc.post);				console.log("444");				callback(null, doc);//返回查询的一篇文章				console.log("555");			});		});	});};

Post.getAll: Get all articles of a person (pass in parameter name) or get everyone's articles (do not pass in parameter).
Post.getOne: Get an article accurately based on user name, publication date and article name.
index.js: Add the following code:

app.get('/u/:name', function (req, res) {		//检查用户是否存在		User.get(req.params.name, function (err, user) {			if (!user) {				req.flash('error', '用户不存在!'); 				return res.redirect('/');//用户不存在则跳转到主页			}			//查询并返回该用户的所有文章			Post.getAll(user.name, function (err, posts) {				if (err) {					req.flash('error', err); 					return res.redirect('/');				} 				res.render('user', {					title: user.name,					posts: posts,					user : req.session.user,					success : req.flash('success').toString(),					error : req.flash('error').toString()				});			});		}); 	});		app.get('/u/:name/:day/:title', function (req, res) {		Post.getOne(req.params.name, req.params.day, req.params.title, function (err, post) {			if (err) {				req.flash('error', err); 				return res.redirect('/');			}			res.render('article', {				title: req.params.title,				post: post,				user: req.session.user,				success: req.flash('success').toString(),				error: req.flash('error').toString()			});		});	});

Create a new user.ejs in the blog/views/ folder, add the following code, and also add index.ejs Modify to the following code:

<%- include header %><% posts.forEach(function (post, index) { %>  <p><h2><a href="/u/<%= post.name %>/<%= post.time.day %>/<%= post.title %>"><%= post.title %></a></h2></p>  <p class="info">    作者：<a href="/u/<%= post.name %>"><%= post.name %></a> |     日期：<%= post.time.minute %>  </p>  <p><%- post.post %></p><% }) %><%- include footer %>

Create a new article.ejs in the blog/views/ folder and add the following code:

<%- include header %><p class="info">  作者：<a href="/u/<%= post.name %>"><%= post.name %></a> |   日期：<%= post.time.minute %></p><p><%- post.post %></p><%- include footer %>

Now, we have added user page and article page to the blog. To achieve the effect:

Click on the article title:

Click on the author: