Rails how to cache partial?

Question

I'm using a render partial: 'fragment', locals:{obj:item} for every row in table. It takes long time to process the whole page.

Is there a way to save all fragments for each item at first loading and don't render them again each time during the server works?

UPDATED

card/index.html.haml
%table 
  =render partial: 'card/card', collection: @cards, cached: true

card/_card.html.haml
-cache card do
  %tr=card.title

card_controller.rb
def index
  @cards = Card.order(:name)
end

SOLVED

Cached started to work after I add to development.rb:

config.action_controller.perform_caching = true
config.cache_store = :memory_store, { size: 64.megabytes }

Answer 1

Or you can run rails dev:cache to toggle caching.