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Refactoring to the rescue @gurgelrenan
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Renan Gurgel
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Views
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Models
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Controllers
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200 ms to 20 ms
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Dicas para melhorar a qualidade de código
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Atualize as dependências
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Atualize o Ruby
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Use uma ferramenta de análise de código
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Use uma ferramenta de CI
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#1 N + 1
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Source: http://guides.rubyonrails.org/active_record_querying.html#eager-loading- associations
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Source: http://guides.rubyonrails.org/active_record_querying.html#eager-loading- associations
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1 load client Source: http://guides.rubyonrails.org/active_record_querying.html#eager-loading- associations
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1 load client Source: http://guides.rubyonrails.org/active_record_querying.html#eager-loading- associations
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Source: http://guides.rubyonrails.org/active_record_querying.html#eager-loading- associations
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1 load client N load address Source: http://guides.rubyonrails.org/active_record_querying.html#eager-loading- associations
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Source: http://guides.rubyonrails.org/active_record_querying.html#eager-loading- associations
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Source: http://guides.rubyonrails.org/active_record_querying.html#eager-loading- associations
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#2 Null Object
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NoMethodError: undefined method user_type for nil:NilClass
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Source: https://robots.thoughtbot.com/rails-refactoring-example-introduce-null-object
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Source: https://medium.com/@franzejr/null-object-pattern-in-ruby-12a809bc75cc
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Source: https://medium.com/@franzejr/null-object-pattern-in-ruby-12a809bc75cc
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#3 Tell don’t ask
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Dizer o que um objeto deve fazer Ao invés de perguntar
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#4 Service Objects
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Actions Complexas
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Actions envolvendo múltiplos models
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Interagindo com serviços externos
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#5 Decorator
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Remover lógica das views
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https://github.com/drapergem/draper
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app/views/articles/show.html.erb
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app/views/articles/show.html.erb
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app/decorators/article_decorator.rb
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app/views/articles/show.html.erb
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Material de estudo
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https://refactoringrails.io
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Finalizando…
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Cuide bem do seu código
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Microservices >>> Monolítico
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Depende do seu contexto
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Alto acoplamento
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Design ruim
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@nandovieira
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Não adianta extrair código, se ele continua ruim
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Obrigado :)