How can I debug Active Record queries in Rails?
You can use the rails console
to run queries and inspect the results. Additionally, enabling SQL logging can help.
What if I want to see the actual SQL being executed?
You can enable SQL logging in your config/environments/development.rb
by setting config.log_level = :debug
.
Are there any tools that can help with debugging?
Yes, tools like Bullet
can help identify N+1 queries, and ActiveRecord::QueryTrace
can show where queries are called.
How do I fix N+1 query issues?
You can use includes
or eager_load
to preload associated records and avoid N+1 queries.
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