Good old TaggedLogger!

tagged_logger.rb

module TaggedLogger

  extend ActiveSupport::Concern

  def log(message, additional_tags = [], log_level = :info)

    begin
      caller_name = caller[0][/`.*'/][1..-2].to_s
    rescue StandardError
      caller_name = "error_getting_method_name"
    end

    tags = []
    tags += self.class::DEFAULT_LOG_TAGS if self.class.const_defined? :DEFAULT_LOG_TAGS
    tags += [self.class.to_s, caller_name]
    tags += additional_tags
    Rails.logger.tagged(tags) do
      Rails.logger.public_send log_level.to_s, message
    end
  end

  module ClassMethods
    def log(message, additional_tags = [], log_level = :info)
      begin
        caller_name = caller[0][/`.*'/][1..-2].to_s
      rescue StandardError
        caller_name = "error_getting_method_name"
      end

      tags = []
      tags += self.class::DEFAULT_LOG_TAGS if self.class.const_defined? :DEFAULT_LOG_TAGS
      tags += [self.name, caller_name]
      tags += additional_tags
      Rails.logger.tagged(tags) do
        Rails.logger.public_send log_level.to_s, message
      end
    end
  end
end