class Sentry::Rails::Tracing::ActiveRecordSubscriber

def self.subscribe!
  subscribe_to_event(EVENT_NAMES) do |event_name, duration, payload|
    next if EXCLUDED_EVENTS.include? payload[:name]
    record_on_current_span(op: SPAN_PREFIX + event_name, start_timestamp: payload[START_TIMESTAMP_NAME], description: payload[:sql], duration: duration) do |span|
      span.set_tag(:cached, true) if payload.fetch(:cached, false) # cached key is only set for hits in the QueryCache, from Rails 5.1
      connection = payload[:connection]
      if payload[:connection_id]
        span.set_data(:connection_id, payload[:connection_id])
        # we fallback to the base connection on rails < 6.0.0 since the payload doesn't have it
        base_connection = ActiveRecord::Base.connection
        connection ||= base_connection if payload[:connection_id] == base_connection.object_id
      end
      next unless connection
      db_config = if connection.pool.respond_to?(:db_config)
                    connection.pool.db_config.configuration_hash
                  elsif connection.pool.respond_to?(:spec)
                    connection.pool.spec.config
                  end
      next unless db_config
      span.set_data(Span::DataConventions::DB_SYSTEM, db_config[:adapter]) if db_config[:adapter]
      span.set_data(Span::DataConventions::DB_NAME, db_config[:database]) if db_config[:database]
      span.set_data(Span::DataConventions::SERVER_ADDRESS, db_config[:host]) if db_config[:host]
      span.set_data(Span::DataConventions::SERVER_PORT, db_config[:port]) if db_config[:port]
      span.set_data(Span::DataConventions::SERVER_SOCKET_ADDRESS, db_config[:socket]) if db_config[:socket]
    end
  end
end