In a project at work I see a lot of code like

SomeModel.includes(:comments).joins(:comments).[...] # many more where and order clauses, other stuff

My question is: Does it make any sense to use includes and joins on the same table like :comments?

CodePudding user response：

It may make sense. These two methods serve different purposes. You need joins if you want to filter Posts by attributes of their Comments. And you need includes to avoid N 1 queries when rendering posts with comments.