Allow for disabling registration (#502)

* Create registration column in DB

* Disable account creation if registration is closed

* Test that registration is closed

app/controllers/registrations_controller.rb

@@ -3,7 +3,13 @@
 class RegistrationsController < Devise::RegistrationsController
   before_action :load_game, :load_message_count
   before_action :check_captcha, only: %i[create]
-  before_action :prevent_action_after_game, only: %i[new create]
+  before_action :prevent_action_after_game, :prevent_action_if_registration_closed, only: %i[new create]
+
+  def prevent_action_if_registration_closed
+    return if @game.registration_enabled
+
+    redirect_back fallback_location: user_root_path, alert: I18n.t('game.registration_closed')
+  end
 
   def new
     super

app/views/home/index.html.haml

@@ -35,7 +35,7 @@
               = link_to t('home.index.join_team'), join_team_users_path, :class => "btn btn-large btn-primary"
             .btn-group
               = link_to t('home.index.create_team'), new_team_path, :class => "btn btn-large btn-primary"
-    - else
+    - elsif @game.registration_enabled
       .btn-toolbar
         .pagination-centered
           .btn-group

app/views/layouts/_dropdown.html.haml

@@ -28,13 +28,18 @@
           = link_to t('application.edit_account'), edit_user_registration_path, :method => :get
           = link_to t('application.log_out'), destroy_user_session_path, :method => :delete
   - else
-    %li.dropdown
-      %a.dropdown-toggle{"data-toggle" => "dropdown", :href => "#"}
-        = t('home.index.login_or_register')
-        %b.caret
-      %ul.dropdown-menu
-        %li
-          =link_to t('application.log_in'), new_user_session_path
-        %li.divider
-        %li
-          =link_to t('home.index.register'), new_user_registration_path
+    - unless @game.nil?
+      %li.dropdown
+        %a.dropdown-toggle{"data-toggle" => "dropdown", :href => "#"}
+          - if @game.registration_enabled
+            = t('home.index.login_or_register')
+          - else
+            = t('home.index.login')
+          %b.caret
+        %ul.dropdown-menu
+          %li
+            =link_to t('application.log_in'), new_user_session_path
+            - if @game.registration_enabled
+              %li.divider
+              %li
+                =link_to t('home.index.register'), new_user_registration_path

config/locales/en.yml

@@ -162,6 +162,7 @@ en:
     date_mismatch: 'The start date must be before the end date.'
     before_competition: 'This action is not available until the game is open.'
     after_competition: 'This action is not available after the game is over.'
+    registration_closed: 'This action is not available because registration is closed.'
     setup: 'Finish setting up the scoreboard by creating a game. Not all fields are required, and you can always change them later! Learn more at %{href}'
     setup_href: "https://github.com/mitre-cyber-academy/ctf-scoreboard/wiki/Configuration#game"
     attack_defend_challenges: 'Attack & Defend Challenges'

db/migrate/20200623173255_add_toggle_registration.rb

@@ -0,0 +1,5 @@
+class AddToggleRegistration < ActiveRecord::Migration[6.0]
+  def change
+    add_column :games, :registration_enabled, :boolean, default: true, null: false
+  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.define(version: 2020_06_15_163200) do
+ActiveRecord::Schema.define(version: 2020_06_23_173255) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -125,6 +125,7 @@
     t.text "prizes_text"
     t.text "terms_and_conditions"
     t.integer "board_layout", default: 0, null: false
+    t.boolean "registration_enabled", default: true, null: false
   end
 
   create_table "messages", id: :serial, force: :cascade do |t|

test/controllers/registrations_controller_test.rb

@@ -54,6 +54,14 @@ def setup
     assert_equal I18n.t('game.after_competition'), flash[:alert]
   end
 
+  test 'cannot register for game when registration closed' do
+    game = create(:active_game, registration_enabled: false)
+
+    get :new
+    assert_redirected_to @controller.user_root_path
+    assert_equal I18n.t('game.registration_closed'), flash[:alert]
+  end
+
   # We accidently enabled checking of captcha on naviation to the new page once,
   # this is to ensure we don't make that mistake again
   test 'new has no errors' do