Rails - Feb 2005 - Referential Integrity

Is there a way to handle referential integrity through active record?
For example I want to offer users the ability to delete categories but
only if there is no information associated with it.
 
thanks,
Beau


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On Thu, 24 Feb 2005 10:09:21 -0600, Beau O''Hara
<bohara-Ani+Op4kYNUXWzRTk0ed69BPR1lH4CV8@public.gmane.org>
wrote:
>  
> Is there a way to handle referential integrity through active record?  For
> example I want to offer users the ability to delete categories but only if
> there is no information associated with it. 
Just check for associations in the Category#before_destroy callback.

http://ar.rubyonrails.com/classes/ActiveRecord/Callbacks.html

-- 
Regards,
John Wilger

-----------
Alice came to a fork in the road. "Which road do I take?" she asked.
"Where do you want to go?" responded the Cheshire cat.
"I don''t know," Alice answered.
"Then," said the cat, "it doesn''t matter."
- Lewis Carrol, Alice in Wonderland