How to get the previous post from a specific post in Ruby on Rails???

Question

Ruby on Rails

For example, we know a record with id. So, how can I find the previous entry???
Calculate from the current id-shnik - 1 and find it will not work, since such a record with such an id-shnik can be deleted.

Answer 1

.where("id < ?", params[:id]).limit(1)
Only better not id, a created_at.

Answer 2

eldar_web depends on what you mean by "previous" entry.
If we take a blog with the possibility of delayed posting as an example, then "previous" is the first entry with an earlier publication date.