How to output data from a model in a certain order in Ruby on Rails?

Question

Ruby on Rails

For example, there is a Usermodel
I make the list in this way: I want it to be output in the order in which I indicated, that is, first the first, then the third and the second during the cycle ( ). But when looping, it is displayed sorted by id, that is, it is displayed in order: 1, 2, 3. How can I solve the problem?
@users = User.where(id: [1,3,2])
@users.eacho do |item|

Answer 1

Oddly enough, the each method by itself doesn't sort anything. The sorting is most likely done by the ORM when you call 'where'. If your data is pulled by id, then try using 'find' or write a SQL query.
Something like that

User.find([1,3,2])
или
User.find_by_id([1,3,2])

You can check if the sort is really happening at the time of the 'where' call by querying irb.
py.sy. In my projects find is faster than where

Answer 2

User.where(id: [1,3,2]).order("case id when 1 then 1 when 3 then 2 when 2 then 3 end")

But it's better to create a separate position field