Slim Ruby on Rails: Controllers & Middlewares

Transcript

1. Slim Ruby on Rails:
   Controllers & Middlewares
   Krzysztof Wawer
   

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2. Request
   https://medium.com/@christemple/what-is-rack-in-ruby-7e0615f1d9b6
   

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3. Request
   Rack App
   Middlewares
   log auth cache
   HTTP Request
   HTTP Response
   

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4. Middleware
   

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5. Rack Middleware
   http://railscasts.com/episodes/151-rack-middleware
   

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6. Ruby on Rails
   Middleware stack
   $ rails new app
   $ rails new app --api
   $ rake middleware
   http://guides.rubyonrails.org/rails_on_rack.html#configuring-middleware-stack
   

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7. Ruby on Rails
   Middleware stack
   use Rack::MethodOverride
   use Sprockets::Rails::QuietAssets
   use WebConsole::Middleware
   use ActionDispatch::Cookies
   use ActionDispatch::Session::CookieStore
   use ActionDispatch::Flash
   http://guides.rubyonrails.org/rails_on_rack.html#configuring-middleware-stack
   

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8. RoR Middlewares
   problem
   https://github.com/rails/rails/blob/master/railties/lib/rails/application/default_middleware_stack.rb
   

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9. http://paulserraino.com/rails/2016/02/29/rails-mountable-engines.html
   Rails Engines
   

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10. Ruby on Rails Engine
    http://tech.taskrabbit.com/blog/2014/02/11/rails-4-engines/
    

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11. Controller
    

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14. ActionController::Base
    http://api.rubyonrails.org/classes/ActionController/Base.html
    

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15. ActionController::API
    http://api.rubyonrails.org/classes/ActionController/API.html
    

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16. ActionController::Metal
    http://api.rubyonrails.org/classes/ActionController/Metal.html
    

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17. ActionController::API
    http://api.rubyonrails.org/classes/ActionController/API.html
    

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18. Why ?
    

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19. • Strong Parameters
    • Params Wrapper
    

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20. • Strong Parameters
    • Params Wrapper
    Mapping
    

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21. Mapping - missing part
    Nested Attributes - revealing
    structure
    

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