CODEWITHSUNDEEP
node.jsexpresshandlebars.js
Steve Hobbs
Steve Hobbs

Reputation: 3326

i18n-node-2, Express and a Handlebars helper

I'm trying to create a Handlebars helper for i18n-node-2 so that I can use localised strings directly from the view, but using the Express helper to register i18n in the first place, I can't then get an instance of i18n that I can use inside the helper.

The relevant code:

var i18n = require('i18n-2');

Registering i18n with Express:

i18n.expressBind(app, {
  locales: ['en', 'de'],
  cookieName: 'locale',
  extension: ".json"
});

Creating my helper:

hbs.registerHelper('__', function() {
  // What I would *like* to do, but the 'i18n' instance here is the wrong one
  return i18n.__.apply(i18n, arguments);
});

Basically, inside the helper I need the the instance of i18n as created by i18n.expressBind(), which calls i18n.init(). Short of modifying the source code to return this instance, is there another way to get it?

Upvotes: 0

Views: 725

Answers (2)

robertwbradford
robertwbradford

Reputation: 6605

To build off of @SteveHobbs' answer, if you have a helper that's expecting an arbitrary number of parameters and even an options hash, you could do the following:

hbs.registerHelper('foo', function() {
  var args = Array.prototype.slice.call(arguments),
      last = args.pop(),
      options = last.hash,
      context = last.data.root;

  // Show what's available:
  console.log('From foo helper:');
  console.log('args:', args);
  console.log('options:', options);
  console.log('context:', context);
});

Upvotes: 0

Steve Hobbs
Steve Hobbs

Reputation: 3326

Answering my own question. i18n-node-2 places the lookup functions __ and __n in the locals collection, which you can get to from the context that Handlebars gives you when running the helper:

hbs.registerHelper('__', function(key, context) {  
  return context.data.root.__(key);
});

.. which works a treat.

Upvotes: 0

Related Questions