Demonstrate preloading in example

1 files changed, 5 insertions, 0 deletions

diff --git a/README.md b/README.md
index c1bfe12b77..8f340d7013 100644
--- a/README.md
+++ b/README.md
@@ -66,6 +66,11 @@ class MessagesController < ApplicationController
     message.images.attach(params[:message][:images])
     redirect_to message
   end
+
+  def show
+    # Use the built-in with_attached_images scope to avoid N+1
+    @message = Message.find(params[:id]).with_attached_images
+  end
 end
 ```