Rails - Dec 2007 - Managing Hierarchical Data

Hello,

I am in the process of trying to date hierarchical data in a MySQL
database and convert it into a treeview view JS scripting. As a beginner
to ROR there are still many unknown things to me, and handling this sort
of data is one of them. My question is this: Is there any built in
functionality for handling hierarchical data (via a MySQL DB) in
Rails/Ruby? If there is can someone please explain it or link to
documentation on it? That would be of great help, thanks.

- Josh
-- 
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On Dec 9, 2007 3:10 PM, Josh Gilman
<rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:
>
> Hello,
>
> I am in the process of trying to date hierarchical data in a MySQL
> database and convert it into a treeview view JS scripting. As a beginner
> to ROR there are still many unknown things to me, and handling this sort
> of data is one of them. My question is this: Is there any built in
> functionality for handling hierarchical data (via a MySQL DB) in
> Rails/Ruby? If there is can someone please explain it or link to
> documentation on it? That would be of great help, thanks.
>
Models:
acts_as_nested_set
acts_as_list
acts_as_tree
http://www.oreillynet.com/ruby/blog/2006/07/treemap_on_rails.html

Controllers:
http://pezra.barelyenough.org/blog/2007/07/hierarchical-resources-in-rails/

Do any of those help?  You could also simply setup your models appropriately
and use some type of parent_id as a foreign key.

Regards,
Michael Guterl

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Michael Guterl wrote:
> On Dec 9, 2007 3:10 PM, Josh Gilman
<rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
> wrote:
> 
>>
> Models:
> acts_as_nested_set
> acts_as_list
> acts_as_tree
> http://www.oreillynet.com/ruby/blog/2006/07/treemap_on_rails.html
> 
> Controllers:
> http://pezra.barelyenough.org/blog/2007/07/hierarchical-resources-in-rails/
> 
> Do any of those help?  You could also simply setup your models 
> appropriately
> and use some type of parent_id as a foreign key.
> 
> Regards,
> Michael Guterl
Somewhat, though not really. Essentially what I am trying to build is a 
hierarchical subject list, like how you might navigate a site. For 
instance you select "Toys" and it drops down to list the sub-groups 
"electronic" and "mobile". I was simply wondering if there
were any
tools to help organize this data so that creating such a list would be 
much more simpler as I lack the skills to hard code my own version into 
the model.
-- 
Posted via http://www.ruby-forum.com/.

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You are probably looking for "acts_as_tree" (google for details).

--MarkusQ
Sent via BlackBerry from T-Mobile

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