django-mptt is an implementation Modified Preorder Tree Traversal for handling trees of Django Model instances.
django-mptt is an implementation Modified Preorder Tree Traversal for handling trees of Django Model instances.
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Questions tagged [django-mptt]
351 questions
2
votes
0 answers
how to collapse/expand a django-mptt list ideally using CSS and no JS in template
I need to collapse/expand a django-mptt list ideally using CSS (and no JavaScript) in my template:
Following guidance from http://django-mptt.github.io/django-mptt/templates.html, I got a basic view, and have consulted the below SO…
kumarz
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2
votes
1 answer
Making a copy of a FeinCMS page tree using django-mptt changes child order
I'm trying to make a copy of a FeinCMS page tree, which is managed using django-mptt. I wrote this function:
def make_tree_copy(page, parent=None):
'''
Makes a copy of the tree starting at "page", reparenting it to "parent"
'''
…
Jonas
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2
votes
1 answer
Using django-mptt to get only the categories that have items
Sample structure:
ALL UPPERCASE: Category
Mixed Case: Item
ROOT
├── BOOKS
│ ├── FICTION
│ │ └── CLASSICS
│ └── NON-FICTION
├── CLOTHING
└── ELECTRONICS
├── LAPTOPS
├── PHONES
│ ├── APPLE
│ │ ├── iPhone 6
│ │ …
Nick
- 8,049
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2
votes
1 answer
Display detail page for model using django-mptt-urls
Im trying to access the detailpage of a photo instance, but I can't seem to get it to work. (The category detail page works great!)
I would like to access http//domain.com/main-category/sub-cat/sub-sub-cat/photo-slug/
Models.py:
from mptt.models…
Tomas Jacobsen
- 2,368
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- 81
2
votes
2 answers
A node may not be made a child of any of its descendants in django mptt
here is the models.py
class Category(MPTTModel):
title = models.CharField(max_length =120)
name = models.CharField(max_length=120)
parent = models.ForeignKey('self' , null = True , blank = True , …
user6180320
2
votes
1 answer
Django-mptt initial migrations when using Django's Group model
I was having a look at django-mptt and found out that I can use use it with Django's built-in Group model. So, I followed the steps mentioned in documentation
import mptt
from mptt.fields import TreeForeignKey
from django.contrib.auth.models import…
user3631116
2
votes
1 answer
Including foreign key count in django mptt full tree listing?
I'm spitting out my categories tree like so:
{% load mptt_tags %}
{% full_tree_for_model bugs.Category as cats cumalative count bugs.Bug.categories %}
{% for node, structure in cats|tree_info %}
{% if structure.new_level…
meder omuraliev
- 183,342
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2
votes
1 answer
How do I filter for all descendants of a ForeignKey MPTT Model?
Here is the situation. I'm utilizing an MPTT Model in Django to create a hierarchy of music genres (Rock, Hard Rock, etc). I'm assigning one of the nodes of this hierarchy to an Album. Let's say I create a Album object with Hard Rock genre. How…
Ryan
- 2,650
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2
votes
1 answer
How to get the depth level at a any given level in the template
Setup:
a tree structure of the models.
a representation of that structure in the HTML.
Issue:
How to know at any given recursion level the depth level at which currently I am?
Example:
This is the HTML:
-
0
-
…
Diosney
- 10,520
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2
votes
1 answer
How to populate inherited MPTT fields while creating a Django fixture?
I'm following the instructions here to create my first Django fixture. I've created a JSON file. But there is a complication: The model I'm trying to populate inherits from MPTTModel
Here is what my Django JSON fixture file initial_data.json looks…
Saqib Ali
- 11,931
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2
votes
1 answer
How to build witt django-mptt a query joining to any descendant of mptt hierarchy element?
I want to build with django-mptt a hierarchy of vegetables classes (Fruit -> Berries -> Strawberry -> Douglas Strawberry) being the last level the variety. Retailer stocks are often related to the leaf level, the variety (Golden Apple, Douglas…
vokimon
- 1,602
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2
votes
1 answer
Can't create many-to-many object in django admin using django-mptt
I can't create an object in django admin. It raises the error:
ValueError at /admin/app/category/add/
"" needs to have a value for field "from_category" before this many-to-many relationship can be used.
Request Method: GET
Request URL: …
opportunity356
- 168
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- 11
2
votes
1 answer
django-mptt error on retrieving root nodes of a tree
I am trying to retrieve the root nodes of a hierarchy. My nodes look like this:
class MyNode(MPTTModel):
parent = TreeForeignKey('self', blank=True, null=True,
related_name='children')
slug =…
pkout
- 6,430
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2
votes
2 answers
operational error - no such table - Django, mptt
I'm running into a DB related problem in Django that I don't understand.
I define an MPTT model like so:
class Image(MPTTModel):
name = models.CharField(max_length=50)
parent = TreeForeignKey('self', null=True, blank=True,…
David J.
- 1,753
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2
votes
0 answers
Can django-mptt render a partial tree with ancestors and descendents from a subset of nodes?
Can django-mptt construct a partial tree from a list of nodes?
Given this complete tree:
Cars
Automatic
Truck
Car
Manual
Truck
Car
Big-rig
and given only a subset of nodes, let's say only ["Big-rig", "Car (automatic)"] can I…
Carson
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