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Granular Cache Invalidation with touch: true

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                  class CodeBlock < ApplicationRecord
  belongs_to :snip, touch: true
end

                  <% cache(@snip) do %>
  <h1><%= @snip.title %></h1>
  <%= render @snip.code_blocks %>
<% end %>

When a child record changes, you often want the parent cache key to change too. touch: true is a clean primitive for that. It keeps fragment caching sane without complex dependency graphs.

Sarah Chen

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Granular Cache Invalidation with touch: true

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More from Sarah Chen