Rendering a partial from Draper Decorator

Question

I have a decorator that returns either a string, or a collection.

In my view, I want to display the return of this decorator method.

class MyDecorator < Draper::Decorator
  def stuff
    if condition
      'some string'
    else
      render model.some_collection
    end
  end
end

Now in my view I want to render the string if it's a string, or render the collection.

= my_object.stuff

Unfortunately I cannot access the render method inside Draper::Decorator. Thoughts?

score 8 · Accepted Answer · answered Jun 01 '13 at 02:37

8

From https://github.com/drapergem/draper#accessing-helpers:

Normal Rails helpers are still useful for lots of tasks. Both Rails' provided helper and those defined in your app can be accessed via the h method

So, replace render with h.render and it should work fine.

answered Jun 01 '13 at 02:37

Justin Thomas

283
1
6

I haven't had an opportunity to implement that fix yet, thank you for your answer. I will mark it as complete once I verify that it works. I can't believe I missed that in the Readme... – ardavis Jun 04 '13 at 15:05

score 2 · Answer 2 · answered Oct 01 '13 at 08:02

2

you can include Draper's Draper::LazyHelpers module inside the decorator to use the ActionView::Helpers and the rest of ActionView as you've always have with views.

answered Oct 01 '13 at 08:02

Kevin_L22

113
7

Rendering a partial from Draper Decorator

2 Answers2