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django-treenav

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An extensible, hierarchical, and pluggable navigation system for Django sites.

django-treenav was designed from the start to live independent of a CMS implementation. As a separate application, treenav can easily be integrated into existing, custom setups and does not enforce or require users to use a particular content management system.

Sharing the same principles, django-pagelets integrates seamlessly with treenav and can be used together to create a flexible CMS product.

For complete documentation checkout, http://django-treenav.readthedocs.org

Features

  • Generic functionality with multiple URL specifications: get_absolute_url(), reverse(), or raw URLs
  • Packaged with templates to render the tree hierarchy with nested <ul>'s, but can easily be overridden with custom templates
  • Easily customize each item's template or fall back to a default menuitem.html
  • Useful CSS classes for flexible UI customization
  • Automatically sets "active" on item and item's parents if PATH_INFO is equal to item.href
  • Efficient: minimizes database access with django-mptt functionality
  • Caches the tree so that repeated page views do not hit the database.
  • Simple links in the MenuItem list view for refreshing the cache and href from the database.

Requirements

Using the demo

For a quick demo, follow these steps:

  1. Create a virtualenv. (This example uses mkvirtualenv, but there are many other ways to do it):

    $ mkvirtualenv django-treenav
    
  2. Check out the code and install the requirements:

    (django-treenav)$ git clone git://github.com/caktus/django-treenav.git
    (django-treenav)$ cd django-treenav/
    (django-treenav)~/django-treenav/$ pip install -Ur dev-requirements.txt
    
  3. Run migrations and create a superuser so you can login to the Django admin:

    (django-treenav)~/django-treenav$ python manage.py migrate
    (django-treenav)~/django-treenav$ python manage.py createsuperuser
    
  4. Run the server:

    (django-treenav)~/django-treenav$ python manage.py runserver
    
  5. Visit http://localhost:8000/ in your browser and follow the instructions.

Installation

  1. Install the app with pip:

    pip install django-treenav
    
  2. Add to your INSTALLED_APPS and run migrate:

    INSTALLED_APPS = (
        ...,
        'mptt',
        'treenav',
    )
    
  3. Include these context processors:

    TEMPLATES = [
      {
        'OPTIONS': {
          'context_processors': [
            "django.template.context_processors.request",
            "treenav.context_processors.treenav_active",
          ],
        },
      },
    ]
    
  4. Add these urls:

    urlpatterns = [
        url(r'^treenav/', include('treenav.urls')),
    ]
    

Maintainer Information

We use Github Actions to lint (using pre-commit, black, isort, and flake8), test (using tox and tox-gh-actions), calculate coverage (using coverage), and build documentation (using sphinx).

We have a local script to do these actions locally, named maintain.sh:

$ ./maintain.sh

A Github Action workflow also builds and pushes a new package to PyPI whenever a new Release is created in Github. This uses a project-specific PyPI token, as described in the PyPI documentation here. That token has been saved in the PYPI_PASSWORD settings for this repo, but has not been saved anywhere else so if it is needed for any reason, the current one should be deleted and a new one generated.

As always, be sure to bump the version in treenav/__init__.py before creating a Release, so that the proper version gets pushed to PyPI.

Development sponsored by Caktus Consulting Group, LLC.

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Extensible, hierarchical, and pluggable navigation system for Django sites

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