How to Temporarily Disable and Re-enable Rails SQL Logging in the Console?

Disabling Rails SQL Logging in the Console

Debugging code in Rails' console can be challenging when SQL query logging clutters the output. This guide provides a method to temporarily disable and re-enable SQL logging for a more clear and concise display of relevant data.

To disable logging, use the following command in the console:

old_logger = ActiveRecord::Base.logger
ActiveRecord::Base.logger = nil

This assigns the current logger to a variable and then sets the active logger to nil, effectively disabling logging.

To re-enable logging after debugging, simply run the following command:

ActiveRecord::Base.logger = old_logger

This restores the previously assigned logger, enabling the logging mechanism once more.

Alternatively, if setting the logger to nil raises errors, you can set its level to 1 instead:

ActiveRecord::Base.logger.level = 1 # or Logger::INFO

This achieves the same effect of disabling logging by suppressing its output.

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