Add category selectors on public scoreboards

app/controllers/contests_controller.rb

@@ -16,13 +16,7 @@ class ContestsController < ApplicationController
     @action_name = t("helpers.buttons.edit")
     @action_path = edit_contest_path(@contest)
     @contestants = @contest.contestants.sort_by { |contestant| [ -contestant.completions.size, contestant.time_seconds ] }
-    if params.key?(:category) && params[:category] != "-1"
-      if params[:category] == "-2"
-        @contestants = @contestants.select { |contestant| contestant.categories.size == 0 }
-      else
-        @contestants = @contestants.select { |contestant| contestant.categories.where(id: params[:category]).any? }
-      end
-    end
+    filter_contestants_per_category
     @puzzles = @contest.puzzles.order(:id)
     @messages = @contest.messages.order(:time_seconds)
     set_badges
@@ -84,6 +78,7 @@ class ContestsController < ApplicationController
 
     @title = I18n.t("contests.scoreboard.title", name: @contest.name)
     @contestants = @contest.contestants.sort_by { |contestant| [ -contestant.completions.size, contestant.time_seconds ] }
+    filter_contestants_per_category
     @puzzles = @contest.puzzles.order(:id)
     @action_name = t("helpers.buttons.refresh")
     @action_path = "/public/#{@contest.friendly_id}"
@@ -105,4 +100,14 @@ class ContestsController < ApplicationController
   def contest_params
     params.expect(contest: [ :lang, :name, :public, :team, :allow_registration ])
   end
+
+  def filter_contestants_per_category
+    if params.key?(:category) && params[:category] != "-1"
+      if params[:category] == "-2"
+        @contestants = @contestants.select { |contestant| contestant.categories.size == 0 }
+      else
+        @contestants = @contestants.select { |contestant| contestant.categories.where(id: params[:category]).any? }
+      end
+    end
+  end
 end