View Components

Using View Components... or How to Build Reusable, Testable and Encapsulated View Components in Ruby on Rails

Structure

• Components are located under src/api/app/components
• Component previews are located under src/api/app/spec/components/previews
• Component specs are located under src/api/app/spec/components

How

• To use helpers in components, use the helpers proxy. So if you have a helper method named user_icon, use it inside a component with helpers.user_icon.
• Explain that all view components should inherit from ApplicationComponent because some code is shared among all view components
• Explain policy_user methods from ApplicationComponent and why some view components need to have this instance variable in their initialize method