Its common for me to look for orphans and I typically do it like this: Child.eager_load(:parent).where(parents: { id: nil })
I would like to propose putting together a PR for something like this: Child.missing(:parent) Parent.missing(:children) Please let me know if others are interested in the functionality and I would love to give it a shot! -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-core+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-core@googlegroups.com. Visit this group at https://groups.google.com/group/rubyonrails-core. For more options, visit https://groups.google.com/d/optout.