first parameter of render() function must be request...
try do it like this:
*
return render(request, "tree.html", {'annotated_list':annotated_list})
*
пятница, 17 мая 2013 г., 17:28:12 UTC+3 пользователь Cody Scott написал:
>
> I am categorizing models in a tree. The tree is created based on a string
> of where the model falls in the tree. The tree will not change once it is
> created.
>
> I tried using django-mptt with this code to create the tree.
>
> def add_new_nodes(category_string):
> for category in category_string.split(','):
> try:
> root = Category.get_root()
> except:
> root = Category.objects.create(value='')
> current_node = root
> for step in category.split(':'):
> added = False
> for node in current_node.get_children().all():
> print node.value
> print step
> if node.value == step:
> added = True
> current_node = node
> break
> if not added:
> new_node = Category.objects.create(value=step,
> parent=current_node)
> current_node = new_node
>
>
> But it each time is creating a new branch from the root even with two
> children of the root with the same name.
>
>
> Or at least that is what I get from
>
>
> {% load mptt_tags %}<ul>
> {% recursetree nodes %}
> <li>
> {{ node.name }}
> {% if not node.is_leaf_node %}
> <ul class="children">
> {{ children }}
> </ul>
> {% endif %}
> </li>
> {% endrecursetree %}</ul>
>
>
>
> So I am trying to use django-treebeard similarly but I am getting an error.
> 'str' object has no attribute 'META'
>
>
> def tree(request):
> try:
> root = Category1.get_root_nodes()[0]
> except:
> root = Category1.add_root(value='')
> annotated_list = root.get_annotated_list()
> print annotated_list
> return render("tree.html", {'annotated_list':annotated_list})
>
>
> {% for item, info in annotated_list %}
> {% if info.open %}
> <ul><li>
> {% else %}
> </li><li>
> {% endif %}
>
> {{ item }}
>
> {% for close in info.close %}
> </li></ul>
> {% endfor %}{% endfor %}
>
>
> But I get the error 'str' object has no attribute 'META'
>
>
>
>
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