In rails 2.3.5 (with active scaffold) all my columns in display were sorted even though they belonged to a related table. But in Rails 3.2.8 , only columns which belong to the main table are sorted .To sort a related table column we need to specifically add the line below
columns[:columnfromtable2].sort_by :sql => ['name']
I have many columns which are 'related' in many pages , it would be tedious to add this line in them all
