forgeplus/app/controllers/admins/projects_rank_controller.rb

class Admins::ProjectsRankController < Admins::BaseController

  def index 
    @rank_date = rank_date
    deleted_data = $redis_cache.smembers("v2-project-rank-deleted")
    $redis_cache.zrem("v2-project-rank-#{rank_date}", deleted_data) unless deleted_data.blank?
    @date_rank = $redis_cache.zrevrange("v2-project-rank-#{rank_date}", 0, -1, withscores: true)
  end

  private 

  def rank_date 
    params.fetch(:date, Date.today.to_s)
  end

end