Rails, ActiveRecord, query id in array of ints, keep order of passed array

Question

I am thinking about the best solution for a problem. Let\'s say that we have a list of ids of ActiveRecord model:

ids = [1, 100, 5, 30, 4, 2, 88, 44]
         


        

Answer 1

regard less of MySQL and Postgresql, if you have a small size of ids,

User.where(id: ids).sort_by { |u| ids.index(u.id) }