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:shinto_shrine: #tools test / debug / command line / configure (Debug…

- - - - Test preparation = rails db:test:prepare
      - Fixtures = test data set = Detail fixtures docs
      - test/fixtures (generate automatically from command line)
      - Generate big data set fill db/seeds.rb then run jets db:seed
- - - - rails server === rails s
      - rails s -e production
      - rails s -p 8889
      - rails s -b IP (defaul is localhost)
      - rails -d (deamon)
    - - rails g controller controllerName
      - rails g controller controllerName index send delete
      - rails g model Comment commenter:string body:text article:references
      - scaffold
        
        is a full set of model, database migration for that model, controller to manipulate it, views to view and manipulate the data, and a test suite for each of the above
        
        rails g scaffold HighScore game:string score:integer
      - rails g migration MigName
    - - rails c -e staging
      - rails console === rails c
    - - rails db:migrate
    - - rails runner = rails r
      - rails r "Model.long_running_method" OR rails r file.rb
      - rails r -e staging "Model.long_running_method"
    - - rails destroy === rails d
      - contains all generates options