django-extended-dates

[Note: this package was fully created by LLMs, I just reviewed it to use it for BCE dates in my map simulation platform.]

Django DateTimeField supporting dates outside the standard Python datetime range (1-9999), such as BC dates, primarily for use with PostgreSQL's timestamp type.

This package leverages the cftime library to represent dates outside the standard range in Python and aims to handle the conversion between cftime objects and the database representation.

Status: Work in Progress / Alpha

• Core field structure is defined.
• Conversion for standard datetime and in-range cftime objects is partially implemented.
• Crucially, parsing and formatting for out-of-range dates (especially BC dates and database string representations) is NOT yet implemented. See NotImplementedError exceptions in fields.py and forms.py.
• Basic tests for standard cases are included.

Requirements

• Python 3.8+
• Django >= 3.2
• cftime >= 1.5.0
• Database backend that supports extended timestamp ranges (e.g., PostgreSQL).

Installation (Placeholder)

pip install django-extended-dates

(Note: Not yet available on PyPI)

Basic Usage

In your Django models:

from django.db import models
from django_extended_dates.fields import ExtendedDateTimeField
import cftime

class HistoricalEvent(models.Model):
    name = models.CharField(max_length=200)
    event_date = ExtendedDateTimeField()

# Example (once BC date handling is implemented):
# event = HistoricalEvent.objects.create(
#    name="Assassination of Julius Caesar",
#    event_date=cftime.datetime(-44, 3, 15, 10, 0, 0, calendar='gregorian')
# )

Development & Testing (Placeholder)

1. Clone the repository.
2. Set up a virtual environment.
3. Install dependencies (e.g., poetry install).
4. Configure Django settings for testing (database, INSTALLED_APPS including django_extended_dates and tests).
5. Run tests:

python manage.py test

Contributing

Contributions are welcome, especially for implementing the robust parsing/formatting logic required for extended date support.

License

MIT License (or your chosen license - update pyproject.toml).