Qor Cache

# config/qor/cache.rb
cache_key "product" do
  [Product, Collection]
end

cache_key "current_season" do
  Season.current
end

scope :color_variation do
  cache_method :heavy_method_related_to_products, 'product'
  cache_method :heavy_method_related_to_product do |s|
    s.product
  end

  cache_class_method :heavy_class_method
  cache_class_method :heavy_class_method_related_to_current_season, 'current_season'

  cache_field :product_code, :from => [:product, :code]
end


# app/models/color_variation.rb
def heavy_method_related_to_products
  Product.all.map(&:id).sum
end

def heavy_method_related_to_product
  product.size_variations.map(&:id).sum
end

def self.heavy_class_method
  self.all.map {|x| x.id}.sum
end

def self.heavy_class_method_related_to_current_season
  where(:season_id => Season.current.id).map {|x| x.id}.sum
end

# app/views/xxx.html.erb
cache qor_cache_key('product', 'current_season') do
  xxxxx
end

cache qor_cache_key('product') { current_user.role } do
  xxxxx
end