From 52358fa68a84d0df8a216040b1e5eb0fbfdd26c7 Mon Sep 17 00:00:00 2001
From: Andrew Tomaka <atomaka@gmail.com>
Date: Fri, 11 Dec 2015 15:11:06 -0500
Subject: [PATCH] Fix many N+1 queries

---
 app/controllers/comments_controller.rb | 5 ++++-
 app/controllers/posts_controller.rb    | 4 ++--
 app/controllers/users_controller.rb    | 2 +-
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/app/controllers/comments_controller.rb b/app/controllers/comments_controller.rb
index 7e68555..62acebf 100644
--- a/app/controllers/comments_controller.rb
+++ b/app/controllers/comments_controller.rb
@@ -4,7 +4,10 @@ class CommentsController < ApplicationController
   before_filter :set_subcreddit
 
   def show
-    @comments = @comment.subtree.arrange(order: :created_at)
+    @comments = @comment
+                  .subtree
+                  .includes(:post, :user)
+                  .arrange(order: :created_at)
   end
 
   def new
diff --git a/app/controllers/posts_controller.rb b/app/controllers/posts_controller.rb
index 8c848ae..beae91e 100644
--- a/app/controllers/posts_controller.rb
+++ b/app/controllers/posts_controller.rb
@@ -3,11 +3,11 @@ class PostsController < ApplicationController
   before_filter :set_subcreddit
 
   def index
-    @posts = Post.all
+    @posts = Post.includes(:subcreddit, :user).all
   end
 
   def show
-    @comments = @post.comments.arrange(order: :created_at)
+    @comments = @post.comments.includes(:user).arrange(order: :created_at)
   end
 
   def new
diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index c8cd616..283c337 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -1,7 +1,7 @@
 class UsersController < ApplicationController
   def show
     @user = User.friendly.find(params[:id])
-    @comments = @user.comments
+    @comments = @user.comments.includes(:post)
   end
 
   def new