CSC/ECE 517 Fall 2018/E1866 Expertiza Internationalization

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Introduction

Team Members

Jonathan Gill (jtgill@ncsu.edu)

Hasham Mukhtar (hmukhta@ncsu.edu)

Abhilasha Saini (asaini4@ncsu.edu)

Reddy Aravind Karnam Ganesh (rkarnam@ncsu.edu)

Mentor

Zhewei Hu (zhu6@ncsu.edu)

Relevant Files

config/locales/

  • en.yml
  • hi_IN.yml

config/

  • routes.rb
  • application.rb

app/controllers/applcation_controller.rb

Student View Files:

  • app/views/
    • shared/
      • _navigation.html.erb
    • sign_up_sheet/
      • _suggested_topic.html.erb
      • _table_header.html.erb
      • list.html.erb
    • student_task/
      • list.html.erb
      • view.html.erb
    • student_teams/
      • edit.html.erb
      • view.html.erb
    • submitted_content/
      • _hyperlink.html.erb
      • _main.html.erb
      • _self_review.html.erb
      • _submitted_files.html.erb
      • _title.html.erb
      • edit.html.erb
    • grades/
      • view_my_scores.html.erb
      • view_team.html.erb
    • student_review/list.html.erb
    • participants/change_handle.html.erb

Project Description

Currently Expertiza only supports the English language. Many Expertiza users are from other countries. We aim to allow students to view their pages in another language. This will be done by internationalizing static strings in Expertiza for Student assignment related pages to another language (ex: Hindi or Chinese). Students will have the ability to change the language through a dropdown located in navigation bar at the top of the page. We will not be affecting any strings that are dynamically shown..

Project Design

Technical Design

Allowing Student to change language for Assignment Pages

  • We added a dropdown in the navigation bar for a student to use
  • They are able to choose from English or Hindi
  • When the language is clicked on it changed all the static strings in the Student Views related to Assignments to the newly selected language.

Adding Multi-Language Support

  • For this project, we added support for one language, Hindi.
  • We used Google Translate to convert the strings to Hindi.
  • We used the Rails Internationalization (I18n) API to help us add multi language support.
  • There are two yml files in the config/locales directory representing the different languages that can be used in Expertiza.
    • One for English, which will be the default language used, and another for Hindi.
      • en.yml
      • hi_IN.yml
    • These yaml files contained the translated strings for their respective language.
  • We editied the routes.rb, application.rb, application_controller.rb files and all the view files related to Student Assignments (which you can see at the top of the wiki) so that it can read from the yml files to show other languages.
  • routes.rb
    • We wrapped every resource in routes.rb with a scope so that the language can be added to the url when navigating Expertiza
    • images here
  • application.rb
  • application_controller.rb
    • We added three things to this file to get the translations to work:
      • before_action :set_locale
        • This will call the set_locale method
 def set_locale
   I18n.locale = params[:locale] || I18n.default_locale
 end

        • This sets the locale (language to use). The locale is taken from the URL query params list. If none is given, then it defaults to our default locale file (which is English). The application will always default to English and it won't set based on the params until another language is chosen from the dropdown and sets :locale to something else.
 def default_url_options(options={})
   {locale: I18n.locale}.merge options
 end

        • This makes the URL always have a locale, which is set in the set_locale method, in it. This way the user doesn't have to manually enter a locale in the URL to translate the page. It will look like www.example.com/en/books since English is the default.

Example Output

Original Page

Language Dropdown

Translated Page


Test Plan

Scenarios

1. Log in to Expertiza as a student. Go to the Assignment section of Expertiza. Go to language dropdown in the navigation bar and choose Hindi. Check to see if the English strings on that page are translated to Hindi

2. While still logged in as a Student, check if the other Assignment related pages are also translated.

Links/References

Project Links

Support Material

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