`How can you adjust the language preferences for users in Meteor?`

My website is internationalized using the tap-i18n plugin.

I am looking to allow users to switch between languages on the site.

Currently, I have a file called client/setLanguage.js where I set the language on startup:

getUserLanguage = function () {
  return "fr";
};

Meteor.startup(function () {
  var language = getUserLanguage();

  TAPi18n.setLanguage(newLanguage).done(function () {
    console.log("language changed");
  }).fail(function (error_message) {
    console.log(error_message);
  });
});

However, I want the language selection to be based on the user's choice rather than being hardcoded at startup.

Would it be better to create a settings page with a form that allows users to update their preferred language like so:

Meteor.users.update({ userId: userId }, { $set: { language: newLanguage } }

Then retrieve and set the language on the client side like this:

var newLanguage = Meteor.findOne(Meteor.userId()).language;
TAPi18n.setLanguage(newLanguage);

I'm concerned about the efficiency of making database calls regularly. Is it necessary to update the language every time or should I only do it on startup and on the settings page?

javascriptnode.jsmeteorinternationalization

Answer №1

To optimize the user experience in selecting a language, it is recommended to include a select input option at the top section of the webpage:

lang http://www.acclaro.com/assets/images/blog/Image/international%20website%20nav%20drop%20down.png

By implementing an event listener for when the user changes the language selection, you can save their preferred language as the default:

Meteor.users.update({ userId: userId }, { $set: { language: newLanguage }});
TAPi18n.setLanguage(newLanguage);

If the user navigates away from the page or application, you can restore their default language on subsequent visits:

getUserLanguage = function () {
  var userLang = 'fr';
  if (Meteor.user()) {
    userLang = Meteor.user().language
  }
  return userLang;
};

Meteor.startup(function () {
  var language = getUserLanguage();

  TAPi18n.setLanguage(language).done(function () {
    console.log("language changed");
  }).fail(function (err) {
    console.log(err);
  });
});

Ensure that you publish/subscribe to the user's language preference data:

// Use null parameter for automatic publishing without subscription requirement
Meteor.publish(null, function() {
  return Meteor.users.find(
    { _id: this.userId },
    { fields: { language: 1 }}
  );
});

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