dry-view is a simple, standalone view rendering system built around functional view controllers and templates. dry-view allows you to model your views as stateless transformations, accepting user input and returning your rendered view.
Use dry-view if:
- You want to build and render views consistently in any kind of context (dry-view is standalone, it doesn’t require an HTTP request!).
- You’re using a lightweight routing DSL like Roda or Sinatra and you want to keep your routes clean and easy to understand (dry-view handles the integration with your application’s objects, all you need to provide from your routes is the user input data).
- Your application uses dependency injection to make objects available to each other (dry-view fits perfectly with dry-web and dry-system).
- Want a way to test your views in isolation.
Build your view controller:
require "dry-view" class HelloView < Dry::View::Controller configure do |config| config.paths = [File.join(__dir__, "templates")] config.layout = "app" config.template = "hello" end expose :greeting end
Write a layout (
<html> <body> <%= yield %> </body> </html>
And a template (
<h1>Hello!</h1> <p><%= greeting %></p>
#call your view controller to render your view:
view = HelloView.new view.(greeting: "Greetings from dry-rb") # => "<html><body><h1>Hello!</h1><p>Greetings from dry-rb!</p></body></html>