[Feature Proposal] belongs_to and has_one bang methods

rubyonrails-core
,
1

Much like the methods first!, last!, or find_by! there are cases where the context of code you’re in expects an association to be present.

I’d like to get feedback on adding equivalent methods for belongs_to and has_one to raise in the case where these associations are expected to exist but don’t.

Example:

class Post
  belongs_to :author
end

post = Post.first!
post.author! # should raise if author is not present

I’d be happy to open a PR for this feature assuming this feature is permitted.