Re: How can i transmit an objects in list?

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

Childrens it's just a related_items parameter for a field.
This code from models.py

class Categories(models.Model):
    name = models.CharField(max_length=50)
    path = models.SlugField(max_length=50)
    parent = models.ForeignKey('self', null=True, blank=True, related_name='childrens')
    order = models.IntegerField(default=1)
    isShow = models.BooleanField(default=True)

 

By using category.childrens.all() i just check are child items exists...  (any object have this category like 'parent')

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

Thx, for advice.

 

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

Type is a "class Category". So it's realy object... Now i understand so i wrong with identify my problem.

I want to build HTML through the custom tag, and i cant get access for fields parametrs in custom tag script. In begin i suppose the problem appear when i put objects in list. But type(list[0]) show thet in list i have still object. I check in my template by {{item.field}} - it is show me right data, so in template i sill can get access for fields of an object. But when in my template i call my template tag, in template_tag code i can't get access for fields... code is below.
In my template i do

{% load menu_builder %}
{{ list|BuildMenu }}

In menu_builder.py i have this code:

def BuildMenu(list):
    html = ''
    for item in list:
        print item.path
    return html

it's isnt realy function - just check... but i get a exception
'list' object has no attribute 'path'
Exception Location: ..\templatetags\menu_builder.py in BuildMenu, line 7

Can you help with it? Where i make a wrong?
 

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