Thursday, June 14, 2012

Re: How can i transmit an objects in list?

Hello, 


Are you sure?

I suppose that "childrens" is a custom manager, can you show us, the implementation of that manager?

Only for performance "if len(category.childrens.all()):" -> "if category.childrens.exist():"

But your problem, it's rare. Print the type of the firs element of the result list:

list = BuildList(Categories.objects.filter(parent = None))
print type(list[0])

2012/6/14 Dominis <Dominis13@yandex.ru>
Hello.
I need a bit help with my code.
I write a function for menu building, which should create a list of objects, for designing it in html code.
Code of function below:
def BuildList(categories):
    list = []
    for category in categories:
        if len(category.childrens.all()):
            list.append(category)
            list.append(BuildList(category.childrens.all()))
        else :
            list.append(category)
    return list
 
I call this function for a list of categories, like this:
list = BuildList(Categories.objects.filter(parent = None))
My function work right, but in list i get not an objects, my values have only name of a categories. I thought it happens couse in my Category model in __unicode__  function i place a 'return self.name', and when i call my categories in function - it return just name. :(
What i should do for get full objects in my list? With full collection of parameters.
I suppose this question is easy, but i just start to learn python and django.
Thx for you time and answers.

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