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Question 8 of 70

What are the differences between rails console options?

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rails console opens an interactive Ruby session with the app loaded, and its options decide which data you touch and whether changes stay.

  • rails console, or rails c, starts the standard console in the development environment.
  • rails console --sandbox starts sandbox mode, which wraps the session in a database transaction and rolls back every change when you exit.
  • rails console -e production loads the production environment, so your commands act on live data.
  • rails dbconsole, or rails db, opens the database client, such as psql, with the app's connection settings.
# Sandbox mode - all changes rolled back
rails console --sandbox

# Production console
RAILS_ENV=production rails console

Use sandbox mode to try a risky query safely, and take extra care in a production console, where every change is real.

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