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Ruby on Rails - Rake


  • Rake is Ruby make, a make-like language written in Ruby.
  • Rails uses Rake extensively, especially for the innumerable little administrative tasks necessary when developing database-backed web applications.
  • Rake tasks are loaded from the file Rakefile
  • Rails rake tasks live under /lib/tasks
  • You can put your own tasks under lib/tasks

  •                   bundle exec rake -T
                      bundle exec rake -T db #See a list of database tasks
  • db: Database The most common tasks of the db: Rake namespace are migrate and create, and it will pay off to try out all of the migration rake tasks (up, down, redo, reset). rake db:version is useful when troubleshooting, telling you the current version of the database.
  • rails: Rails-specific tasks After upgrading Rails, it is useful to run rails:update, which will update your config and scripts directories, and upgrade your Rails-specific javascript
  • rake stats #gives summary statistics about your code
  • rake routes #lists all your defined routes

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