Rails render partial in a loop

Question

I am new to rails and I am trying to render a partial within a loop as such.

Here , books is an array eager loaded in controller.

 books.each do |book|
   <%= render 'books/book', :book => book %>
 end

This works fine. But when the books array is really huge, it takes time for the view to load completely. Is there any other efficient way using which the same can be achieved?. I tried partial with collection(like here) as well, but even that did not make much difference in the load time of books. Any suggestions would be highly appreciated. Thanks.

Answer 1

Rendering partial in a loop consume too much time because of open/close partial file every iteration. Instead of partial try to use your own helper for this purpose.

Answer 2

If you have list of values to display in the same view then you can iterate the values in the same view instead of rendering a new partial each time. If it's not the case then it is better to pass values from controller to your view. Hope it helps.