Add language settings for users, and translate titles to French

app/controllers/application_controller.rb

@@ -2,7 +2,7 @@ class ApplicationController < ActionController::Base
   include Authentication
   include Pundit::Authorization
 
-  before_action :set_title, :set_current_user
+  before_action :set_title, :set_current_user, :set_lang
   after_action :verify_authorized
 
   # Only allow modern browsers supporting webp images, web push, badges, import maps, CSS nesting, and CSS :has.
@@ -23,6 +23,10 @@ class ApplicationController < ActionController::Base
     @current_user = current_user
   end
 
+  def set_lang
+    I18n.locale = @current_user.lang
+  end
+
   def user_not_authorized(exception)
     policy_name = exception.policy.class.to_s.underscore
 

app/controllers/users_controller.rb

@@ -55,6 +55,6 @@ class UsersController < ApplicationController
   end
 
   def user_params
-    params.expect(user: [ :username, :email_address, :password ])
+    params.expect(user: [ :username, :email_address, :lang, :password ])
   end
 end

app/lib/languages.rb

@@ -0,0 +1,3 @@
+module Languages
+  AVAILABLE_LANGUAGES = [ { id: "en", name: "English" }, { id: "fr", name: "French" } ]
+end

app/models/user.rb

@@ -5,6 +5,7 @@
 #  id              :integer          not null, primary key
 #  admin           :boolean          default(FALSE), not null
 #  email_address   :string           not null
+#  lang            :string           default("en")
 #  password_digest :string           not null
 #  username        :string
 #  created_at      :datetime         not null
@@ -22,4 +23,5 @@ class User < ApplicationRecord
   normalizes :email_address, with: ->(e) { e.strip.downcase }
 
   validates :username, presence: true, uniqueness: true
+  validates :lang, inclusion: { in: Languages::AVAILABLE_LANGUAGES.map { |lang| lang[:id] } }
 end

app/views/users/_form.html.slim

@@ -1,6 +1,7 @@
 = form_with model: user, method: method do |form|
   - if method == :patch
     h4 General settings
+  
   .row.mb-3
     .col
       .input-group
@@ -8,11 +9,20 @@
         .form-floating
           = form.text_field :username, autocomplete: "off", class: "form-control"
           = form.label :username, class: "required"
+
   .row.mb-3
     .col
       .form-floating
         = form.text_field :email_address, autocomplete: "off", class: "form-control"
         = form.label :email_address, class: "required"
+
+  .row.mb-3
+    .col
+      .form-floating
+        = form.select :lang, Languages::AVAILABLE_LANGUAGES.map { |lang| [ lang[:name], lang[:id] ] }, {}, class: "form-select"
+        = form.label :lang
+          | Language
+
   - if method == :post
     .row.mb-3
       .col
@@ -23,6 +33,7 @@
 
   - if method == :patch
     h4.mt-5 Change password
+
     = form_with model: user, method: method do |form|
       .row.mb-3
         .col

config/application.rb

@@ -14,6 +14,7 @@ module PuzzleScoreboard
     # Please, add to the `ignore` list any other `lib` subdirectories that do
     # not contain `.rb` files, or that should not be reloaded or eager loaded.
     # Common ones are `templates`, `generators`, or `middleware`, for example.
+    config.autoload_paths << Rails.root.join("lib")
     config.autoload_lib(ignore: %w[assets tasks])
 
     # Configuration for the application, engines, and railties goes here.
@@ -23,5 +24,8 @@ module PuzzleScoreboard
     #
     # config.time_zone = "Central Time (US & Canada)"
     # config.eager_load_paths << Rails.root.join("extras")
+
+    config.i18n.default_locale = :en
+    config.i18n.available_locales = [ :en, :fr ]
   end
 end

config/locales/fr.yml

@@ -0,0 +1,37 @@
+fr:
+  completions:
+    edit:
+      title: "Modifier la complétion"
+    new:
+      title: "Nouvelle complétion"
+  contests:
+    edit:
+      title: "Paramètres du concours"
+    index:
+      title: "Bienvenue %{username}!"
+    new:
+      title: "Nouveau concours"
+    scoreboard:
+      title: "%{name}"
+    show:
+      title: "%{name}"
+  contestants:
+    edit:
+      title: "Participant"
+    new:
+      title: "Nouveau.elle participant.e"
+  puzzles:
+    edit:
+      title: "Modifier le puzzle"
+    new:
+      title: "Nouveau puzzle"
+  sessions:
+    new:
+      title: "Se connecter à l'app Public Scoreboard"
+  users:
+    edit:
+      title: "Mes paramètres"
+    index:
+      title: "Tous.tes les utilisateur.ices"
+    new:
+      title: "Nouveau.elle utilisateur.ice"

db/migrate/20250327111835_add_lang_to_user.rb

@@ -0,0 +1,5 @@
+class AddLangToUser < ActiveRecord::Migration[8.0]
+  def change
+    add_column :users, :lang, :string, default: 'en'
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.0].define(version: 2025_03_26_162920) do
+ActiveRecord::Schema[8.0].define(version: 2025_03_27_111835) do
   create_table "active_storage_attachments", force: :cascade do |t|
     t.string "name", null: false
     t.string "record_type", null: false
@@ -111,6 +111,7 @@ ActiveRecord::Schema[8.0].define(version: 2025_03_26_162920) do
     t.datetime "updated_at", null: false
     t.string "username"
     t.boolean "admin", default: false, null: false
+    t.string "lang", default: "en"
     t.index ["email_address"], name: "index_users_on_email_address", unique: true
   end
 

spec/factories/contests.rb

@@ -1,3 +1,25 @@
+# == Schema Information
+#
+# Table name: contests
+#
+#  id                 :integer          not null, primary key
+#  allow_registration :boolean          default(FALSE)
+#  name               :string
+#  slug               :string
+#  team               :boolean          default(FALSE)
+#  created_at         :datetime         not null
+#  updated_at         :datetime         not null
+#  user_id            :integer          not null
+#
+# Indexes
+#
+#  index_contests_on_slug     (slug) UNIQUE
+#  index_contests_on_user_id  (user_id)
+#
+# Foreign Keys
+#
+#  user_id  (user_id => users.id)
+#
 FactoryBot.define do
   factory :contest do
     name { Faker::Company.unique.name }

spec/factories/users.rb

@@ -1,3 +1,20 @@
+# == Schema Information
+#
+# Table name: users
+#
+#  id              :integer          not null, primary key
+#  admin           :boolean          default(FALSE), not null
+#  email_address   :string           not null
+#  lang            :string           default("en")
+#  password_digest :string           not null
+#  username        :string
+#  created_at      :datetime         not null
+#  updated_at      :datetime         not null
+#
+# Indexes
+#
+#  index_users_on_email_address  (email_address) UNIQUE
+#
 FactoryBot.define do
   factory :user do
     username { Faker::Internet.unique.username }

spec/models/user_spec.rb

@@ -1,3 +1,20 @@
+# == Schema Information
+#
+# Table name: users
+#
+#  id              :integer          not null, primary key
+#  admin           :boolean          default(FALSE), not null
+#  email_address   :string           not null
+#  lang            :string           default("en")
+#  password_digest :string           not null
+#  username        :string
+#  created_at      :datetime         not null
+#  updated_at      :datetime         not null
+#
+# Indexes
+#
+#  index_users_on_email_address  (email_address) UNIQUE
+#
 require 'rails_helper'
 
 RSpec.describe User, type: :model do

test/fixtures/users.yml

@@ -8,6 +8,7 @@
 #  id              :integer          not null, primary key
 #  admin           :boolean          default(FALSE), not null
 #  email_address   :string           not null
+#  lang            :string           default("en")
 #  password_digest :string           not null
 #  username        :string
 #  created_at      :datetime         not null

test/models/user_test.rb

@@ -5,6 +5,7 @@
 #  id              :integer          not null, primary key
 #  admin           :boolean          default(FALSE), not null
 #  email_address   :string           not null
+#  lang            :string           default("en")
 #  password_digest :string           not null
 #  username        :string
 #  created_at      :datetime         not null