从数据库返回记录的顺序

Question

The records are ordered by id under controller, but when they are presented under *.html.erb , they are disorder again. I have to order them again. Why ??

In Controller

def show
...
@records.order(:id)
...
end

In show.html.erb, I have to do again, or it is disorder

<% for tmp_record in @records.order(:id) %>

Answer 1

Your order should look like:

@records = Record.all.order('id desc')

You can also use a sort:

@records = Record.all.sort_by { |r| r.id }