Rails: How to get objects with at least one child?

Question

After googling, browsing SO and reading, there doesn\'t seem to be a Rails-style way to efficiently get only those Parent objects which have at leas

Answer 1

I have just modified this solution for your need.

Parent.joins("left join childrens on childrends.parent_id = parents.id").where("childrents.parent_id is not null")