Re: i need custom database behaviour, but i dont know how to do it

Do you mean you want the foreign key value to be the 'path' field of
the Category model? You could do this, but why would you want to? If
you ever want to refer to the category path from an Announce instance,
you just do:
  announce.category.path

hmm i have to explain more i think lets think that i have a category tree like that

All                                                 
   '--- Animals                                 
    '                     '---Dogs               
    '                     '---Cats                
    '                     '---Fishes             
    '                                                
    '--- Computers                           
                             '--- Laptops       
                             '--- Desktops    
                             '--- Accessories

and that category items has path property like :

All =  "all"
Animals = "all/animals"
Dogs = "all/animals/dogs"
Cats = "all/animals/cats"
Fishes = "all/animals/fishes"

Now, that is important part,  lets think that i am selected Animals category, than announces that is in  Dogs, Cats and Fishes category must be shown..

İ tried doing it with loops before but at the result i see that i am making too much database queries than i found a method...

later, i found that, if i wrote category path on announces, and write a custom manager, i can make a query like

Announce.objects.GetByCategory("/all/animals")
that makes a querty on database

select * from announces where category startswith 'all/animals'  (i dont know sql well ill research later)

than it will result all announces whichs category is Dogs or Cats or Fishes

or Announce.objects.GetByCategory("/all/") will return all announces that is categorized with Animals or Computers or Laptops or Cats

My english is very bad, i wish i explained well my stiuation. After that problem solved i think i can publish my category applicaton.

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