Module: Fastaccess::ActsWithFastaccessOn::ClassMethods

Defined in:
lib/fastaccess/acts_with_fastaccess_on.rb

Instance Method Summary collapse

Instance Method Details

#acts_with_fastaccess_on(method_name, options = {}) ⇒ Object

registers the pertaining method as one, which return value is provided through redis. This is for fast access of otherwise generated content with a high reading/writing ratio.

Parameters:

  • method_name (Symbol) —

    denoting the pertaining method this method shouldn’t be defined beforehand.

  • options (Hash) (defaults to: {}) —

    is basic options hash. currently has no effect on execution.



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# File 'lib/fastaccess/acts_with_fastaccess_on.rb', line 18

def acts_with_fastaccess_on(method_name, options = {})
  Fastaccess.register_on self, method_name, options
  define_singleton_method :method_added do |on_method|
    if Fastaccess.registered? self, on_method
      method = on_method
      alias_name = Fastaccess.alias_for method
      if !method_defined?(alias_name)
        alias_method alias_name, method 
        define_method method do |*args|
          redis_id = Fastaccess.redis_id_for(self, method, args)
          opts = Fastaccess.options_for(self, method)
          content_current = opts[:auto_update] ? Fastaccess.update_check(self) : true
          if Fastaccess.redis.exists(redis_id) && content_current
            response = Fastaccess.redis.get(redis_id)
            begin
              return JSON.parse response
            rescue JSON::ParserError
              return response
            end
          else
            response = method(alias_name).call(*args)
            Fastaccess.update_info self
            Fastaccess.redis.set(redis_id, (response.is_a? String) ? response : response.to_json)
            return response
          end
        end
      end
    end
  end
end