Update stats.rb

app/services/stats.rb

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 module Stats
-  def years
+  def self.years
     %w[2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024]
   end
 
@@ -36,26 +36,12 @@ def self.racer_days_by_discipline
   def self.total_racer_days
     return Rails.cache.read("total_racer_days") if Rails.cache.read("total_racer_days").present?
 
-    chart_data = []
-    Discipline.pluck(:name).each do |discipline|
-      chart_data.push({ name: discipline, data: [] })
-    end
+    chart_data = [{ name: "Total Racer Days", data: [] }]
     years.each do |year|
       res = Result.joins(:event).where(events: { year: year, type: "SingleDayEvent" })
                   .where(competition_result: false, team_competition_result: false)
                   .where.not(person_id: nil).count
-      chart_data.each do |data|
-        if res[data[:name]].nil?
-          data[:data].push(0)
-        else
-          data[:data].push(res[data[:name]])
-        end
-      end
-    end
-    chart_data.each do |data|
-      if data[:data].sum.zero?
-        chart_data.delete(data)
-      end
+      chart_data[0][:data].push(res)
     end
     Rails.cache.write("total_racer_days", chart_data, expires_in: 12.hours)
     chart_data