performance tweaks for rails 4.1

app/logical/post_sets/intro.rb

@@ -7,7 +7,7 @@ module PostSets
     def posts
       @posts ||= begin
         temp = ::Post.tag_match("#{tag_string} favcount:>3").paginate(page, :search_count => nil, :limit => 5)
-        temp.all
+        temp.each # hack to force rails to eager load
         temp
       end
     end

app/logical/post_sets/post.rb

@@ -73,7 +73,7 @@ module PostSets
         else
           temp = ::Post.tag_match(tag_string).paginate(page, :count => ::Post.fast_count(tag_string), :limit => per_page)
         end
-        temp.all
+        temp.each # hack to force rails to eager load
         temp
       end
     end

app/logical/upload_error_checker.rb

@@ -4,7 +4,7 @@ require 'mail'
 
 class UploadErrorChecker
   def check!
-    uploads = Upload.where("status like 'error%' and status not like 'error: RuntimeError - duplicate%' and created_at >= ?", 1.hour.ago).all
+    uploads = Upload.where("status like 'error%' and status not like 'error: RuntimeError - duplicate%' and created_at >= ?", 1.hour.ago)
     if uploads.size > 5
       mail = Mail.new do
         from "webmaster@danbooru.donmai.us"