TolgeeLiquid

A Ruby gem that integrates the Tolgee Platform with Shopify's Liquid template language.

If you are developing a multilingual web application using the Liquid template language, check out the Tolgee Platform (translation as a service). It enhances your translation workflow, making it more efficient and accurate.

This gem focuses on the "In-Context" translation integration. See the example project at https://github.com/cccccroge/tolgee-rails-liquid.

Installation

Prerequisite

Make sure you have liquid installed.

Install

Add this line to your application's Gemfile:

gem 'tolgee_liquid'

And then execute:

$ bundle

Usage

Setup Credentials

Add the following block to your application initialization. If you are using Rails, place it in config/initializers/tolgee.rb:

TolgeeLiquid.configure do |config|
  config.api_url = 'https://example.tolgee.io'
  config.api_key = <TOLGEE_API_KEY>
  config.project_id = <TOLGEE_PROJECT_ID>
end

This allows the gem to fetch data from the corresponding Tolgee project in development mode.

Register `t` method for Liquid

There are two ways to setup.

Use Decorator

If you already have your own translation method t defined.

module MyFilterContainsTranslationMethod
  def t(name, vars = {})
    # Own implementation
  end    
end

Liquid::Template.register_filter(MyFilterContainsTranslationMethod)

Add the prefix with_tolgee on translation method:

module MyFilterContainsTranslationMethod
  with_tolgee def t(name, vars = {})
    # Own implementation
  end    
end

Note that the arguments of the original t method must match the format above (the first argument being the translation key, and an optional hash argument providing variables for string interpolation). Otherwise, it won't work correctly.

Use gem's `t` method

You can use the t method provided by the gem, which utilizes ICU MessageFormat patterns under the hood.

Liquid::Template.register_filter(TolgeeFilter)

Use `t` filter in Liquid template

Example Liquid snippet:

<div>{{ 'key.nested_key' | t: fruit: 'Pitaya' }}</div>

Example application's controller code for Rails project:

class PagesController < ApplicationController
  def index
    # get liquid template file...
    template = Liquid::Template.parse(liquid)

    # provide translations and meta data 
    tolgee_registers = TolgeeLiquid.registers({
      locale: 'en',
      mode: 'development',
      static_data: {
        en: YAML.load_file(Rails.root.join('config', 'locales', 'en.yml')),
      },
    })
    
    html = template.render({}, registers: tolgee_registers)
    # put html to view...
  end
end

Example translation yaml file:

key:
  nested_key: "I like {fruit}!"

Development

Run install dependencies to install dependencies.
Run rake spec to run the tests.
Run bin/console for an interactive prompt that will allow you to experiment.
Run rubocop to find code smells.
Run bin/deploy to release a new version

Contributing

Bug reports and pull requests are welcome.

License

The gem is available as open source under the terms of the MIT License.

License

cccccroge/tolgee_liquid

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