Question

I need to sort an array of ActiveRecord objects by the value in one of the columns but am unsure of how to do this.

Example, I have an Schedule model that has a Duration column. I then have two arrays of Schedule objects OriginalList and NewList. I want to sort each of those lists by Duration. I think that I’m looking for something like: –

Schedule.find(:all,                :conditions => 'schedule_id IN (select schedule_id from                                                #{array.each.schedule_id}',               :order => 'duration') 

However, this doesn’t look right at all! Not even in SQL!!

Any hints on how to do this would be appreciated.

Answer 1

Oops. Ignore that! By writing it down I figured out what I actually wanted to do.

Schedule.find(:all, :conditions => 'schedule_id in ('1', '2', '3'), :order => 'duration') 

where the 1, 2, 3 can be generated from the array prior to calling.

Blame it on Friday afternoon! 😀