Ruby on Rails Best Practices

Ruby on Rails Best Practices
Vladimir Tkach
Wondering why Ruby is so popular? Its fans call it a beautiful, artful language. And yet, they say it’s handy and practical.

http://www.ruby-lang.org/

http://rubyonrails.org

How to?

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Rails Best Practices

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Concept: What’s good code?

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Move finder to named_scope / scope

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Use model association

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Use scope access

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Add model virtual attribute

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Use model callback

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Use Model Callback

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Replace Complex Creation with Factory Method

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Replace Complex Creation with Factory Method

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Move Model Logic into the Model

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model.collection_model_ids (many-to-many)

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model.collection_model_ids (many-to-many)

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model.collection_model_ids (many-to-many)

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Nested Model Forms (one-to-one)

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Nested Model Forms (one-to-one)

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Nested Model Forms (one-to-many)

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Keep Finders on Their Own Model

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Keep Finders on Their Own Model

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Love named_scope

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Love named_scope

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the Law of Demeter

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DRY: Metaprogramming

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DRY: Metaprogramming

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Extract into Module

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Extract to composed class

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Extract to composed class

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Use Observer

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Use Observer

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Move code into controller

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Move code into model

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Move code into helper

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Replace instance variable with local variable

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Thank you!
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http://www.ruby-lang.org/en/ http://www.ruby-lang.org/en/documentation/ http://rubyonrails.org/ http://guides.rubyonrails.org/v2.3.8/index.html http://teamco-anthill.blogspot.com

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