> > You are probably getting this error because when you generate your list > from categories. you are adding sub categories as list. so your list will > be like following >
> [cat1,cat2,cat3,[subcat1,subcat2],[subcat3,subcat4]] > Yes, mistake was here. Now i solve it with check "if type(item) is list:" Using one flat list can't help me, couse i need to build tree with few levels. Lastly please check this https://github.com/django-mptt/django-mptt > > this is great for categories. this is good for keeping trees in relational > databases. when you query sub trees, it will do exactly one query every > time. > and there is a generic category app too if you need. > > https://github.com/callowayproject/django-categories > > I hope that helps. > Thx for advice. I will look over it. But i write my custom template for learning and understanding django+python. Couse using ready apps cant let me do it :) All my questions are answered, so thanks for help! God bless friendliness community :) -- You received this message because you are subscribed to the Google Groups "Django users" group. To view this discussion on the web visit https://groups.google.com/d/msg/django-users/-/hcVaDr06AHoJ. To post to this group, send email to django-users@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.