humm. I think the "Rails way" in this case is to define which task you
want when a project can have multiple, and make it a new association.

Like:

class Project < ActiveRecord::Base
  has_many :tasks
  has_one    :last_task, :class_name => 'Task', :order => 'created_at DESC'
...

Then you can get tasks with Project.find(:all, :include => :last_task,
:conditions => 'tasks.id IS NOT NULL').map(&:last_task)

There's certainly a way to do the same with a big sql select/condition
but I don't think it will be as readable. Either way, :group is not a
good solution imho because you're not really using any of the
aggregate functions.


On Thu, Sep 17, 2009 at 11:07 AM, Chap <[email protected]> wrote:
>
> Than I only want one returned.
> >
>

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