Rails 7 adds ActiveRecord::Relation#excluding

If you have not installed Rails 7 yet, please follow our other article on How to install rails 7 to do it in 10 seconds.

Rails 7 adds method excluding in ActiveRecord::Relation, which means you can now re-write the following code in much cleaner way.

Without Rails 7

# finds post by id 1
post_1 = Post.find(1) 

# Find all posts without post_1
Post.where.not(id: post_1.id)

With Rails 7

# finds post by id 1
post_1 = Post.find(1) 

# Find all posts without post_1
Post.excluding(post_1)