Contents

module RailsSettings
  class CachedSettings < Settings
    def rewrite_cache
      Rails.cache.write(cache_key, value)
    end

    def expire_cache
      Rails.cache.delete(cache_key)
    end

    def cache_key
      self.class.cache_key(var, thing)
    end

    class << self
      def cache_prefix(&block)
        @cache_prefix = block
      end

      def cache_key(var_name, scope_object)
        scope = "rails_settings_cached:"
        scope << "#{@cache_prefix.call}:" if @cache_prefix
        scope << "#{scope_object.class.name}-#{scope_object.id}:" if scope_object
        scope << "#{var_name}"
      end

      def [](var_name)
        value = Rails.cache.fetch(cache_key(var_name, @object)) do
          super(var_name)
        end

        if value.nil?
          @@defaults[var_name.to_s] if value.nil?
        else
          value
        end
      end

      # set a setting value by [] notation
      def []=(var_name, value)
        super

        Rails.cache.write(cache_key(var_name, @object),value)

        value
      end

      def save_default(key, value)
        return false unless self[key].nil?
        self[key] = value
      end
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
rails-settings-cached-0.5.5	lib/rails-settings/cached_settings.rb
rails-settings-cached-0.5.4	lib/rails-settings/cached_settings.rb