Add judge result generate button into judge UI

Resolves: #425

Signed-off-by: Kostiantyn Kostiuk <[email protected]>

app/controllers/judges_controller.rb

@@ -3,6 +3,10 @@ def users_csv
     send_data UsersList.new(contest, params[:separator]).build_csv, filename: 'users-list.csv'
   end
 
+  def judge_xlsx
+    send_file Spreadsheet::Judge.new(contest).build
+  end
+
   def destroy
     session.clear
     redirect_to :root

app/views/results/index.html.erb

@@ -1,5 +1,9 @@
 <h3>Результати олімпіади</h3>
 
+<% if judge? %>
+  <p><%= link_to 'Таблиця результатів для журі', [:judge_xlsx, contest, :judge] %></p>
+<% end %>
+
 <% if contest.preliminary_results.attached? %>
   <h4><%= link_to 'Попередні результати', contest.preliminary_results %></h4>
 <% end %>

config/routes.rb

@@ -16,6 +16,7 @@
 
     resource :judge, only: %i[show destroy] do
       get :users_csv
+      get :judge_xlsx
     end
   end