Example of how to integrate node-i18n with a KeystoneJS app (using yo keystone generated site as a basis) - see https://github.com/mashpie/i18n-node for more docs.

keystone.js

// Simulate config options from your production environment by
// customising the .env file in your project's root folder.
require('dotenv')().load();

// Require keystone and i18n
var keystone = require('keystone'),
	i18n= require('i18n');

// Initialise Keystone with your project's configuration.
// See http://keystonejs.com/guide/config for available options
// and documentation.

keystone.init({

	'name': 'Your Site',
	'brand': 'Your Site',

	'less': 'public',
	'static': 'public',
	'favicon': 'public/favicon.ico',

	'views': 'templates/views',
	'view engine': 'jade',

	'auto update': true,

	'session': true,
	'auth': true,
	'user model': 'User',
	'cookie secret': 'your secret'

});

// Load your project's Models

keystone.import('models');

// Setup common locals for your templates. The following are required for the
// bundled templates and layouts. Any runtime locals (that should be set uniquely
// for each request) should be added to ./routes/middleware.js

keystone.set('locals', {
	_: require('underscore'),
	env: keystone.get('env'),
	utils: keystone.utils,
	editable: keystone.content.editable
});

// Configure i18n

i18n.configure({
	locales:['en', 'de'],
	directory: __dirname + '/locales'
});

// Load your project's Routes

keystone.set('routes', require('./routes'));

// Configure the navigation bar in Keystone's Admin UI

keystone.set('nav', {
	'posts': ['posts', 'post-categories'],
	'galleries': 'galleries',
	'enquiries': 'enquiries',
	'users': 'users'
});

// Start Keystone to connect to your database and initialise the web server

keystone.start();

routes - index.js

var _ = require('underscore'),
	keystone = require('keystone'),
	i18n = require("i18n"),
	middleware = require('./middleware'),
	importRoutes = keystone.importer(__dirname);

// Add-in i18n support
keystone.pre('routes', i18n.init);

// Common Middleware
keystone.pre('routes', middleware.initLocals);
keystone.pre('render', middleware.flashMessages);

// Import Route Controllers
var routes = {
	views: importRoutes('./views')
};

// Setup Route Bindings
exports = module.exports = function(app) {
	
	// Views
	app.get('/', routes.views.index);
	app.get('/blog/:category?', routes.views.blog);
	app.get('/blog/post/:post', routes.views.post);
	app.get('/gallery', routes.views.gallery);
	app.all('/contact', routes.views.contact);

}

Its does't work for me,I use the default view engine. 🆘

How you get the routing for the locales? like 0.0.0.0:3000/en/?

Hi, Anyone getting it works in the jade template?

I set up every thing above without error, but in jade,
I got _Cannot read property 'organisation.other' of undefined_ :

organisations.jade

= __("organisation.other")

en.json

{
    "app": {
        "name": "CatchTop Platform"
    },
    "creator": {
        "firstname": "Arthur",
        "lastname": "CHAN"
    },
    "organisation": {
        "one": "Organisation",
        "other": "Organisations test"
    },
}

Seems that it cannot find __ function in _.jade_

@piermariacosina for the language using the routing you can add on your index.js
app.get('/:lang', routes.views.index);
and in the middleware before the pre routes (in the pre render), you can get your language variable and change it using req.setLocale(req.params.lang);

@arthurtalkgoal did you try to use in jade the following: #{__('organisation.other')} ? for me its working.

Handlebars context issue

I had a problem with helpers-context: in the inner scope (for example, inside of helpers each, or with) __ is inaccessible:

{{!-- This works --}}
{{__ "Translatable text"}}

{{!-- This cause an error "Missing helper: '__'" --}}
{{#each data.posts}}
    {{__ "Translatable text"}}
{{/each}}

As a consequence - it is not possible to use i18n for inner markup...

Here is a dirty solution: I have overloaded the res.render, to provide implicit passing of local helpers (this means, that this each request will have its own helpers - it is important) to the render method, and next, to handlebars engine (as described here: https://github.com/ericf/express-handlebars#helpers ).

// somewhere :
var _ = require('lodash');
// ....
// some code...
// ....

app.use(function(req, res, next){

    let render_old = res.render;
    res.render = function render(vn, opt, cb){
        if (_.isNil(opt)){
            opt = { helpers: { __ : res.locals.__ } };
        } else {
            _.set(opt, 'helpers.__', res.locals.__);
        }

        arguments[1] = opt;
        return render_old.apply(this, arguments);
    }

    return next();
}

Add this code to the routes - index.js after keystone.pre('routes', i18n.init); , line 9 in the example above.

I didn't understand how to setup the default language. Where is it?
is it implicit the first language of the array?

Also, using Jade, #{__('title-site')} , when I load the website, i see title-site.

Finally, I just realized that, each time I a reloading the page, my json has been updated??? Now I have

{
  "title-site": "title-site"
}

This will affect the admin as well?

the correct way to access i18n data with Pug.js (I suppose Jade too) is:

index.js: i18n.configure({ locales: ['en', 'de'], directory: __dirname + '/locales', autoReload: true, syncFiles: true, objectNotation: true, });

routes/index.js:
keystone.pre('routes', i18n.init);

en.json:
{ "hello": "hello", "navigation": { "about": "about our awesome company" } }

template.pug (with objectNotation):
span= __('navigation.about') or span #{ __('navigation.about') }

template.pug (without objectNotation):
span= __('navigation').about or span #{ __('navigation').about }

Hello , how to implement i18n for admin panel ?

Hi guys, i have this working. I now need a way to change the locale from the DOM. i want the user to have the ability to change to language he seems better.

Also, if i enable cookie, how do i save the user's language choice to the cookie, so that he doesn't need to change it every time?
thanks,
Tiago

Dear all
I almost port i18n successfully. However, i am having final problem that how i can use i18n for text in flash-messages (mixins folder).
Hope you can help me

Thank you so much for your help