add blog example
This commit is contained in:
TJ Holowaychuk
parent
9c652118a9
commit
38ce7c1559
8 changed files with 217 additions and 1 deletions
92
examples/blog/index.js
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92
examples/blog/index.js
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/**
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* Module dependencies.
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*/
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var render = require('./lib/render');
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var logger = require('koa-logger');
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var route = require('koa-route');
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var views = require('co-views');
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var koa = require('../..');
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var app = koa();
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// "database"
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var posts = [];
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// middleware
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app.use(logger());
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// route middleware
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app.use(route.get('/', list));
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app.use(route.get('/post/new', add));
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app.use(route.get('/post/:id', show));
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app.use(route.post('/post', create));
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// route definitions
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/**
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* Post listing.
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*/
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function *list() {
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this.body = yield render('list', { posts: posts });
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}
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/**
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* Show creation form.
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*/
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function *add() {
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this.body = yield render('new');
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}
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/**
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* Show post :id.
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*/
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function *show(id) {
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var post = posts[id];
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if (!post) this.throw(404, 'invalid post id');
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this.body = yield render('show', { post: post });
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}
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/**
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* Create a post.
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*/
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function *create() {
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var post = yield parse(this);
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var id = posts.push(post) - 1;
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post.created_at = new Date;
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post.id = id;
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this.redirect('/');
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}
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// TODO: use a lib...
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var qs = require('querystring');
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function parse(ctx) {
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return function(done){
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var buf = '';
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var req = ctx.req;
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req.setEncoding('utf8');
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req.on('data', function(chunk){ buf += chunk });
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req.on('end', function(){
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try {
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done(null, qs.parse(buf));
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} catch (err){
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err.body = buf;
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err.status = 400;
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done(err);
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}
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});
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}
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}
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// listen
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app.listen(3000);
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13
examples/blog/lib/render.js
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13
examples/blog/lib/render.js
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/**
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* Module dependencies.
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*/
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var views = require('co-views');
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// setup views mapping .html
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// to the swig template engine
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module.exports = views(__dirname + '/../views', {
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map: { html: 'swig' }
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});
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9
examples/blog/views/index.html
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9
examples/blog/views/index.html
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<html>
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<head>
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<title>Blog</title>
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</head>
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<body>
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{% for post in posts %}
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{% endfor %}
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</body>
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</html>
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62
examples/blog/views/layout.html
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62
examples/blog/views/layout.html
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<html>
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<head>
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<title>{% block title %}Blog{% endblock %}</title>
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<style>
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body {
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padding: 80px;
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font: 16px Helvetica, Arial;
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}
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h1 {
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font-size: 2em;
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}
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h2 {
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font-size: 1.2em;
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}
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#posts {
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margin: 0;
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padding: 0;
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}
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#posts li {
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margin: 40px 0;
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padding: 0;
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padding-bottom: 20px;
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border-bottom: 1px solid #eee;
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list-style: none;
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}
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#posts li:last-child {
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border-bottom: none;
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}
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textarea {
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width: 500px;
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height: 300px;
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}
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input[type=text],
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textarea {
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border: 1px solid #eee;
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border-top-color: #ddd;
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border-left-color: #ddd;
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border-radius: 2px;
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padding: 15px;
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font-size: .8em;
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}
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input[type=text] {
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width: 500px;
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}
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</style>
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</head>
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<body>
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<section id="content">
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{% block content %}
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<p>Missing content!</p>
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{% endblock %}
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</section>
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</body>
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</html>
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17
examples/blog/views/list.html
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17
examples/blog/views/list.html
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{% extends 'layout.html' %}
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{% block title %}Posts{% endblock %}
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{% block content %}
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<h1>Posts</h1>
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<p>You have <strong>{{ posts.length }}</strong> posts!</p>
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<p><a href="/post/new">Create a Post</a></p>
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<ul id="posts">
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{% for post in posts %}
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<li>
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<h2>{{ post.title }}</h2>
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<p><a href="/post/{{ post.id }}">Read post</a></p>
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</li>
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{% endfor %}
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</ul>
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{% endblock %}
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13
examples/blog/views/new.html
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13
examples/blog/views/new.html
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{% extends 'layout.html' %}
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{% block title %}New Post{% endblock %}
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{% block content %}
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<h1>New Post</h1>
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<p>Create a new post.</p>
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<form action="/post" method="post">
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<p><input type="text" placeholder="Title" name="title"></p>
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<p><textarea placeholder="Contents" name="body"></textarea></p>
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<p><input type="submit" value="Create"></p>
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</form>
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{% endblock %}
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8
examples/blog/views/show.html
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8
examples/blog/views/show.html
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{% extends 'layout.html' %}
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{% block title %}{{ post.title }}{% endblock %}
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{% block content %}
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<h1>{{ post.title }}</h1>
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<p>{{ post.body }}</p>
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{% endblock %}
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"ejs": "~0.8.4",
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"koa-logger": "~1.0.1",
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"koa-static": "~1.2.0",
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"co-busboy": "git://github.com/cojs/busboy"
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"co-busboy": "git://github.com/cojs/busboy",
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"koa-route": "~1.0.2",
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"swig": "~1.1.0"
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},
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"engines": {
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"node": "> 0.11.4"
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