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DraperDecorators/View-Models for Rails Applications

Visnupriya. J .R7th April 2014

@visnupriya90| github.com/visnupriya


What is Draper?

• object-oriented layer of presentation logic to your Rails application.

• The idea of Draper is to provide real ruby class between the template and the model.

• To decorate templates.


Why use Draper?

• Clean up complex view logic• Provides decorators which

bundles view logic in an object oriented fashion

• Easy to test than helpers• Code readability and easy to

maintain• Code reuse


What is Decorator Pattern?

• It is a design pattern.• It allows behavior to be added to an

individual object, either statically or dynamically, without affecting the behavior of other objects from the same class


Let’s see how to use?

• Add Draper to your Gemfile• Generate decorator for a model as shown

below• rails generate decorator Article


SAMPLE CODETime to wakeup


Questions?

Thank you

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