What are some effective debugging tips for Ruby on Rails?

What are some effective debugging tips for Ruby on Rails?

Here are some effective debugging tips for Ruby on Rails:

1. Use the Rails console to test code snippets.
2. Leverage the built-in logger to track down issues.
3. Utilize the byebug gem for step-by-step debugging.
4. Check the server logs for error messages.
5. Write tests to catch bugs early.

How do I use the byebug gem?

To use the byebug gem, first add it to your Gemfile:

gem 'byebug'

Then run bundle install. You can insert byebug in your code where you want to start debugging. When the code execution reaches that line, it will pause, allowing you to inspect variables and step through the code.

What should I do if I encounter a 500 error?

If you encounter a 500 error, check the server logs for detailed error messages. Look for stack traces that can point you to the source of the problem. Common issues include missing routes, database connection problems, or syntax errors in your code.

Are there any tools that can help with debugging?

Yes, there are several tools that can help with debugging in Rails:

• Pry: An alternative to the Rails console with more features.
• Better Errors: A gem that provides a better error page with stack traces.
• Rails Panel: A Chrome extension for debugging Rails applications.