Betternestedset talk - Jun 2008 - Question about getting roots for a given scope

Hi All,

I have just found this nested set plugin today and so far it is  
fitting my needs very well.
I have one question.  My application has a need for a nested set "per  
user" on the system.  I would like to split these trees using a scope.

so i have in my Task model - acts_as_nested_set :scope=>:user

This all seems to work correctly.  My question is, how can i get the  
roots for this user?  To get the roots for the whole table I am using  
Task.roots()

Is there a way i can get the roots for a given user?

Thanks,
~Ben

Hi Ben,

If your task table has a user_id in it can you could roll your own getter in
the User class like...

has_many :root_tasks, :class => ''Task'',:conditions =>
''parent_id IS NULL''

On Sun, Jun 8, 2008 at 3:38 AM, Ben <ben at fearofpudding.com> wrote:
> Hi All,
>
> I have just found this nested set plugin today and so far it is fitting my
> needs very well.
> I have one question.  My application has a need for a nested set "per
user"
> on the system.  I would like to split these trees using a scope.
>
> so i have in my Task model - acts_as_nested_set :scope=>:user
>
> This all seems to work correctly.  My question is, how can i get the roots
> for this user?  To get the roots for the whole table I am using
Task.roots()
>
> Is there a way i can get the roots for a given user?
>
> Thanks,
> ~Ben
> _______________________________________________
> Betternestedset-talk mailing list
> Betternestedset-talk at rubyforge.org
> http://rubyforge.org/mailman/listinfo/betternestedset-talk
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://rubyforge.org/pipermail/betternestedset-talk/attachments/20080608/9029315a/attachment.html>

Thanks - that method works a treat.

~Ben
> Hi Ben,
>
> If your task table has a user_id in it can you could roll your own getter
> in
> the User class like...
>
> has_many :root_tasks, :class => ''Task'',:conditions
=> ''parent_id IS NULL''
>
> On Sun, Jun 8, 2008 at 3:38 AM, Ben <ben at fearofpudding.com> wrote:
>
>> Hi All,
>>
>> I have just found this nested set plugin today and so far it is fitting
>> my
>> needs very well.
>> I have one question.  My application has a need for a nested set
"per
>> user"
>> on the system.  I would like to split these trees using a scope.
>>
>> so i have in my Task model - acts_as_nested_set :scope=>:user
>>
>> This all seems to work correctly.  My question is, how can i get the
>> roots
>> for this user?  To get the roots for the whole table I am using
>> Task.roots()
>>
>> Is there a way i can get the roots for a given user?
>>
>> Thanks,
>> ~Ben
>> _______________________________________________
>> Betternestedset-talk mailing list
>> Betternestedset-talk at rubyforge.org
>> http://rubyforge.org/mailman/listinfo/betternestedset-talk
>>
> _______________________________________________
> Betternestedset-talk mailing list
> Betternestedset-talk at rubyforge.org
> http://rubyforge.org/mailman/listinfo/betternestedset-talk
>