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Overview

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A library designed such that, when provided with a model instance it will return a QuerySet for the rows that are associated with that model instance. It also works well with GenericForeignKey objects.

>>> eminem = Artist.objects.filter(stage_name='Eminem').first()
>>> list(get_related_objects(eminem))
[<Albums: Kamikaze>, <Awards: Grammy>, <Cars: Audi R8 Spyder>]

>>> get_related_objects_mapping(eminem)
{<django.db.models.fields.related.ForeignKey: artist>: set([<Albums: Kamikaze>]),
<django.db.models.fields.related.ForeignKey: artist>: set([<Awards: grammy>]),
<django.contrib.contenttypes.fields.GenericForeignKey object at 0x106ff1f50>: set([<Cars: Audi R8 Spyder>])}

Installation

pip install django-related-models

Development

The tests are run via tox, which you would need to install (if you don’t already have it).

  • To get tox just:

    pip install tox

  • To run the all tests run:

    tox

Installation

At the command line:

pip install django-related-models

Usage

To use Django Related Models in a project:

import django_related_models

Reference

Contributing

Contributions are welcome, and they are greatly appreciated! Every little bit helps, and credit will always be given.

Bug reports

When reporting a bug please include:

  • Your operating system name and version.
  • Any details about your local setup that might be helpful in troubleshooting.
  • Detailed steps to reproduce the bug.

Documentation improvements

Django Related Models could always use more documentation, whether as part of the official Django Related Models docs, in docstrings, or even on the web in blog posts, articles, and such.

Feature requests and feedback

The best way to send feedback is to file an issue at https://github.com/roverdotcom/django-related-models/issues.

If you are proposing a feature:

  • Explain in detail how it would work.
  • Keep the scope as narrow as possible, to make it easier to implement.
  • Remember that this is a volunteer-driven project, and that code contributions are welcome :)

Development

To set up django-related-models for local development:

  1. Fork django-related-models (look for the “Fork” button).

  2. Clone your fork locally:

    git clone git@github.com:your_name_here/django-related-models.git

  3. Create a branch for local development:

    git checkout -b name-of-your-bugfix-or-feature

    Now you can make your changes locally.

  4. When you’re done making changes, run all the checks, doc builder and spell checker with tox one command:

    tox

  5. Commit your changes and push your branch to GitHub:

    git add .
git commit -m "Your detailed description of your changes."
git push origin name-of-your-bugfix-or-feature

  6. Submit a pull request through the GitHub website.

Pull Request Guidelines

If you need some code review or feedback while you’re developing the code just make the pull request.

For merging, you should:

  1. Include passing tests (run tox) [1].
  2. Update documentation when there’s new API, functionality etc.
  3. Add a note to CHANGELOG.rst about the changes.
  4. Add yourself to AUTHORS.rst.
[1]

If you don’t have all the necessary python versions available locally you can rely on Travis - it will run the tests for each change you add in the pull request.

It will be slower though …

Tips

To run a subset of tests:

tox -e envname -- pytest -k test_myfeature

To run all the test environments in parallel (you need to pip install detox):

detox

Authors

Changelog

0.1.0 (2018-08-28)

  • First release on PyPI.

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