module Cacheable::AttributeCache

Public Instance Methods

with_attribute(*attributes) click to toggle source
# File lib/cacheable/types/attribute_cache.rb, line 3
def with_attribute(*attributes)
  self.cached_indices ||= {}
  self.cached_indices = self.cached_indices.merge(attributes.each_with_object({}) {
    |attribute, indices| indices[attribute] = {}
  })

  class_eval do
    after_commit :expire_attribute_cache, :on => :update
    after_commit :expire_all_attribute_cache, :on => :update
  end

  attributes.each do |attribute|
    define_singleton_method("find_cached_by_#{attribute}") do |value|
      self.cached_indices["#{attribute}"] ||= []
      self.cached_indices["#{attribute}"] << value
      Cacheable.fetch(attribute_cache_key("#{attribute}", value)) do
        self.send("find_by_#{attribute}", value)
      end
    end

    define_singleton_method("find_cached_all_by_#{attribute}") do |value|
      self.cached_indices["#{attribute}"] ||= []
      self.cached_indices["#{attribute}"] << value
      Cacheable.fetch(all_attribute_cache_key("#{attribute}", value)) do
        if Cacheable.rails4?
          self.where("#{attribute}" => value).load
        else
          self.send("find_all_by_#{attribute}", value)
        end
      end
    end
  end
end