On 1 ao�t 2014, at 16:47, Mariano Martinez Peck <marianopeck@gmail.com> wrote:




On Fri, Aug 1, 2014 at 11:31 AM, Esteban A. Maringolo <emaringolo@gmail.com> wrote:
Y asked for the same thing a few days ago in http://forum.world.st/Multiple-sorting-helper-td4770613.html

Something like:
sorter := MultipleSortCriteria new 
               add: #lastName; 
               add: [:each | each personalInfo age ] ascending: false. 
aCollection asSortedCollection: sorter. 


Exactly!!!  
And... what is most important for me, is that to the MultipleSortCriteria I would like to ask #sortBlock :)

To sort a collection with such an object it only has to answer #value:value:, so is there a special reason you want to generate a block from it?
Because generating such blocks might be a bit cumbersome and the object already does the job, no?


Thanks Esteban for better explaining what I was looking for ;)
 

you could add something like:
sorter := MultipleSortCriteria new 
               add: #lastName; 
               add: #firstName ascending: false nullsFirst: true. 
aCollection asSortedCollection: sorter. 

Regards!


Esteban A. Maringolo


2014-08-01 2:40 GMT-03:00 Damien Cassou <damien.cassou@gmail.com>:

On Thu, Jul 31, 2014 at 10:50 PM, stepharo <stepharo@free.fr> wrote:
> what are you doing?


I think Mariano would like something like this:

persons sorted: #(lastname firstname birthdate) asSortBlock

that would sort by lastname, and if lastnames are equal by firstnames
and if both lastnames and firstnames are equal by birthdate.

--
Damien Cassou
http://damiencassou.seasidehosting.st

"Success is the ability to go from one failure to another without
losing enthusiasm."
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Mariano
http://marianopeck.wordpress.com