From: Rahul Kumar <sentinel1879@...>
Date: 2010-10-13T21:22:16+09:00
Subject: Re: sort_by: multiple fields with reverse sort

Y. NOBUOKA wrote in post #949783:
> The one way to do a reverse sort is wrapping a sort target in a class
> for a reverse sort.
> For instance:
>

Thanks, i will have to consider this.

To the previous reply,
> Are you sure the one criterium version works as you think? !x[1] returns
a
boolean value

Frankly, i am not sure. i just tried it on irb.

My issue is that i do not know how many columns a user will sort on, and 
what combination. So the normal sort() appears cumbersome, unless i can 
dynamically build a string and eval() it. Not sure i know how to do 
that.

sort_by allows me to give a list as argument, so that appears suitable.

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