Move language setting to preferences

app/controllers/profiles/preferences_controller.rb

@@ -37,6 +37,14 @@ class Profiles::PreferencesController < Profiles::ApplicationController
   end
 
   def preferences_param_names
-    [:color_scheme_id, :layout, :dashboard, :project_view, :theme_id, :first_day_of_week]
+    [
+      :color_scheme_id,
+      :layout,
+      :dashboard,
+      :project_view,
+      :theme_id,
+      :first_day_of_week,
+      :preferred_language
+    ]
   end
 end

app/controllers/profiles_controller.rb

@@ -104,7 +104,6 @@ class ProfilesController < Profiles::ApplicationController
       :username,
       :website_url,
       :organization,
-      :preferred_language,
       :private_profile,
       :include_private_contributions,
       status: [:emoji, :message]

app/helpers/preferences_helper.rb

@@ -62,6 +62,10 @@ module PreferencesHelper
     Gitlab::ColorSchemes.for_user(current_user).css_class
   end
 
+  def language_choices
+    Gitlab::I18n::AVAILABLE_LANGUAGES.map { |value, label| [label, value] }
+  end
+
   private
 
   # Ensure that anyone adding new options updates `DASHBOARD_CHOICES` too

app/views/profiles/preferences/show.html.haml

@@ -72,6 +72,12 @@
       = succeed '.' do
         = link_to _('Learn more'), help_page_path('user/profile/preferences', anchor: 'localization'), target: '_blank'
   .col-lg-8
+    .form-group
+      = f.label :preferred_language, class: 'label-bold' do
+        = _('Language')
+      = f.select :preferred_language, language_choices, {}, class: 'select2'
+      .form-text.text-muted
+        = s_('Preferences|This feature is experimental and translations are not complete yet')
     .form-group
       = f.label :first_day_of_week, class: 'label-bold' do
         = _('First day of the week')

app/views/profiles/show.html.haml

@@ -95,9 +95,6 @@
       = f.select :commit_email, options_for_select(commit_email_select_options(@user), selected: selected_commit_email(@user)),
         { help: s_("Profiles|This email will be used for web based operations, such as edits and merges. %{learn_more}").html_safe % { learn_more: commit_email_docs_link } },
         control_class: 'select2 input-lg'
-      = f.select :preferred_language, Gitlab::I18n::AVAILABLE_LANGUAGES.map { |value, label| [label, value] },
-        { help: s_("Profiles|This feature is experimental and translations are not complete yet") },
-        control_class: 'select2 input-lg'
       = f.text_field :skype, class: 'input-md', placeholder: s_("Profiles|username")
       = f.text_field :linkedin, class: 'input-md', help: s_("Profiles|Your LinkedIn profile name from linkedin.com/in/profilename")
       = f.text_field :twitter, class: 'input-md', placeholder: s_("Profiles|@username")

changelogs/unreleased/35638-move-language-setting-to-preferences.yml

+---
+title: Move language setting to preferences
+merge_request: 25427
+author: Fabian Schneider @fabsrc
+type: changed

doc/user/profile/preferences.md

@@ -93,6 +93,12 @@ You can choose between 3 options:
 
 ## Localization
 
+### Language
+
+Select your preferred language from a list of supported languages.
+
+*This feature is experimental and translations are not complete yet.*
+
 ### First day of the week
 
 The first day of the week can be customised for calendar views and date pickers.

locale/gitlab.pot

@@ -4271,6 +4271,9 @@ msgstr ""
 msgid "Labels|Promoting %{labelTitle} will make it available for all projects inside %{groupName}. Existing project labels with the same title will be merged. This action cannot be reversed."
 msgstr ""
 
+msgid "Language"
+msgstr ""
+
 msgid "Large File Storage"
 msgstr ""
 
@@ -5530,6 +5533,9 @@ msgstr ""
 msgid "Preferences|Navigation theme"
 msgstr ""
 
+msgid "Preferences|This feature is experimental and translations are not complete yet"
+msgstr ""
+
 msgid "Press Enter or click to search"
 msgstr ""
 
@@ -5722,9 +5728,6 @@ msgstr ""
 msgid "Profiles|This emoji and message will appear on your profile and throughout the interface."
 msgstr ""
 
-msgid "Profiles|This feature is experimental and translations are not complete yet"
-msgstr ""
-
 msgid "Profiles|This information will appear on your profile"
 msgstr ""
 

spec/controllers/profiles/preferences_controller_spec.rb

@@ -43,7 +43,8 @@ describe Profiles::PreferencesController do
           color_scheme_id: '1',
           dashboard: 'stars',
           theme_id: '2',
-          first_day_of_week: '1'
+          first_day_of_week: '1',
+          preferred_language: 'jp'
         }.with_indifferent_access
 
         expect(user).to receive(:assign_attributes).with(ActionController::Parameters.new(prefs).permit!)

spec/features/profiles/user_visits_profile_preferences_page_spec.rb

 require 'spec_helper'
 
 describe 'User visits the profile preferences page' do
+  include Select2Helper
+
   let(:user) { create(:user) }
 
   before do
@@ -60,6 +62,28 @@ describe 'User visits the profile preferences page' do
     end
   end
 
+  describe 'User changes their language', :js do
+    it 'creates a flash message' do
+      select2('en', from: '#user_preferred_language')
+      click_button 'Save'
+
+      wait_for_requests
+
+      expect_preferences_saved_message
+    end
+
+    it 'updates their preference' do
+      wait_for_requests
+      select2('eo', from: '#user_preferred_language')
+      click_button 'Save'
+
+      wait_for_requests
+      refresh
+
+      expect(page).to have_css('html[lang="eo"]')
+    end
+  end
+
   def expect_preferences_saved_message
     page.within('.flash-container') do
       expect(page).to have_content('Preferences saved.')

spec/helpers/preferences_helper_spec.rb

@@ -110,6 +110,13 @@ describe PreferencesHelper do
     end
   end
 
+  describe '#language_choices' do
+    it 'returns an array of all available languages' do
+      expect(helper.language_choices).to be_an(Array)
+      expect(helper.language_choices.map(&:second)).to eq(Gitlab::I18n.available_locales)
+    end
+  end
+
   def stub_user(messages = {})
     if messages.empty?
       allow(helper).to receive(:current_user).and_return(nil)