koa2-dot
v2.3.3
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dot for koa2 with layout and include function.
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koa2-dot
doT for koa2 with support layouts, include function. It's friendly for front-end web libraries (Angular, Ember, Vue.js, React ...) example
Important
The default settings of doT has been change to use [[]] instead of {{}}. This to support client side templates (Angular, Ember, Vue ...)
- all the advantage of doT
- layout and include support
- uses
[[ ]]by default, not clashing with{{ }}(Angular, Ember...) - custom helpers to your views
- conditional, array iterators, custom delimiters...
- render, renderString, getHtmlByFile, getHtmlByString support
- all template path based on the options.root
Install
Install with npm
npm install koa2-dot --saveThen set add the middleware to koa2 app
import * as doT from 'koa2-dot';
doT.helper.dateFormat = function (dateString) {
let time = new Date(dateString);
if (time === 'Invalid Date') {
return time;
}
return `${time.getFullYear()}年${time.getMonth()}月${time.getDate()}日 ${time.getHours()}时${time.getMinutes()}分${time.getSeconds()}秒`;
};
app.use(doT.views({
root: path.resolve(__dirname, 'views'),
extension: 'server.html',
cacheable: true
}));Layout
You can specify the layout using yaml and refer to the section as you would from a model.
You can also define any extra configurations (like a page title) that are inherited to the master.
views/layout/base.server.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>[[= layout.title ]]</title>
</head>
<body>
<h1>From base.server.html</h1>
<div>
[[= layout.body ]]
</div>
[[# include('partials/footer') ]]
</body>
</html>views/layout/dot.server.html
---
layout: layout/base
title: The dot layout
---
[[## body:
<h2>From the dot.server.html</h2>
[[= layout.content ]]
##]]views/partials/footer.html
<footer>
<div>This is footer.</div>
</footer>views/dot/index.server.html
---
layout: layout/dot
title: The example for koa2-dot
---
[[## content:
<h3>From index.server.html</h3>
<ul>
<li>The engine of model: [[= model.engine]]</li>
<li>The pkg of model: [[= model.pkg]]</li>
<li>The name of app: [[= app.name]]</li>
<li>The desc of app: [[= app.desc]]</li>
</ul>
<div>The dateFormat: [[# def.dateFormat(Date.now())]]</div>
##]]Result
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>The example for koa2-dot</title>
</head>
<body>
<h1>From base.server.html</h1>
<div>
<h2>From the dot.server.html</h2>
<h3>From index.server.html</h3>
<ul>
<li>The engine of model: doT</li>
<li>The pkg of model: koa2-dot</li>
<li>The name of app: koa2-dot example</li>
<li>The desc of app: a example for koa2-dot</li>
</ul>
<div>The dateFormat: 2016年10月20日 16时55分18秒</div>
</div>
<footer>
<div>This is footer.</div>
</footer>
</body>
</html>advance
You can extend the render function to add app info automatically. You can refer to the example
app.use(async (ctx, next) => {
const render = ctx.render;
ctx.render = function (file, model = {}) {
let app = ctx.app || {}; // custome by yourself
return render.apply(ctx, [file, model, app]);
};
await next();
})