how to know which sql query comes from which line of code

active_record_log_subscriber.rb

# file config/initializers/active_record_log_subscriber.rb 
###
# log result:
#  Alert Load (0.8ms)  SELECT `alerts`.* FROM `alerts` INNER JOIN `sharings` ON `alerts`.`id` = `sharings`.`alert_id` WHERE `sharings`.`user_id` = 37 AND `alerts`.`id` = 54148 AND (status = 0) LIMIT 1
#  ↳ app/controllers/entries_controller.rb:20:in `set_objects'
# source: http://www.jkfill.com/2015/02/14/log-which-line-caused-a-query/
###

module LogQuerySource
  def debug(*args, &block)
    return unless super

    backtrace = Rails.backtrace_cleaner.clean caller

    relevant_caller_line = backtrace.detect do |caller_line|
      !caller_line.include?('/initializers/')
    end

    if relevant_caller_line
      logger.debug("  ↳ #{ relevant_caller_line.sub("#{ Rails.root }/", '') }")
    end
  end
end
ActiveRecord::LogSubscriber.send :prepend, LogQuerySource