Rails.logger.debug或puts？

Question

我一直在使用此“ puts”检查生产中的某些值，然后可以在日志中看到它，因此“ Rails.logger.debug”或“ puts”是在生产日志中获取该值的最佳方法。

Answer 1

Use Rails.logger . Logger comes with different levels (from 0 to 5) like:

1. Debug
2. Info
3. Warn
4. Error
5. Fatal
6. Unknown

Logging will help you to tag the message nicely and in the file, it then appears in proper log format (with timestamps and request_ids if enabled).

This is useful when you want to log under development or staging without flooding your production log with unnecessary information.

puts will not give all the above flexibility. If you are using either from development debugging point of view, it doesn't matter much, but I would still prefer Rails.logger for request_id tagging purposes :)