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Description:

thecutdurationfield 2.0.3

Welcome to thecut-durationfield

This app provides a custom Django model field, RelativeDeltaField, and
related form fields and widgets. RelativeDeltaField stores time durations
using ISO 8601 representations, and returns dateutil.relativedelta
objects which may be used directly with datetime.datetime objects.
This project was inspired by packages such as django-durationfield. However,
this project focuses on:

providing a database-agnostic, standards-compliant way of storing the
durations in the database (using ISO 8601).
returning dateutil.relativedelta objects that can be used to perform
calculations on datetime.datetime objects.

Note that django-durationfield provides the ability to filter querysets
based on the relative size of the stored duration, which is not possible with
this project. I.e., you can’t use __lt and __gt etc., when filtering
by fields provided by this project.

Documentation
The full documentation is at https://thecut-durationfield.readthedocs.org.

Quickstart
Install thecut-durationfield using the installation instructions found in the documentation.

Model field
from django.db import models
from datetime import datetime
from thecut.durationfield.models import RelativeDeltaField

class MyModel(models.Model):
duration = RelativeDeltaField(blank=True, null=True)

my_instance = MyModel(duration='P7D')
datetime(2014, 1, 1) + my_instance.duration # datetime(2014, 1, 8, 0, 0)

Form field
Two form fields are provided: RelativeDeltaChoiceField and
RelativeDeltaTextInput:
from django import forms
from thecut.durationfield.models import RelativeDeltaChoiceField

DURATIONS = [
('', 'Never'),
('P7D', 'One week'),
('P1M', 'One month'),
]

class MyForm(forms.ModelForm):

duration = RelativeDeltaChoiceField(choices=DURATIONS)
or, if you’d prefer to type in the (ISO 8601 compliant) value manually:
from django import forms
from thecut.durationfield.forms import RelativeDeltaTextInput

class MyForm(forms.ModelForm):

duration = RelativeDeltaTextInput()

Credits
See AUTHORS.rst.

History

2.0.3 (2016-08-15)

Removed cross-document links from README.rst as it breaks pypi.
Small fix to project’s setup file.

2.0.2 (2016-08-15)

Documentation updates.

2.0.1 (2016-08-15)

Documentation fixes.
Testing fixes.

2.0 (2016-08-15)

Added support for Django 1.10.
Removed support for Django < 1.8.
Restructured test suite.
Restructured documentation.

1.0.8 (2015-08-26)

Improved handling of seconds and milliseconds.

1.0.8 (2015-08-26)

Improved handling of seconds and milliseconds.

1.0.7 (2015-03-17)

Added Python 3 support.

1.0.6 (2014-07-28)

Fix an issue which caused an empty relativedelta to be returned for a
database NULL value.
Get tox up and running.
Update package for public release.

1.0.5 (2014-03-19)

Remove distribute from install_requires.

1.0.4 (2013-12-17)

Fixed an issue with Postgres’s fixed-length 64 character field.

1.0.3 (2013-09-28)

Minor code cleanup.

1.0.2 (20132-08-08)

Add a Select widget for friendlier form input.

1.0.1 (2013-07-25)

Fixes to south introspection rules.

1.0 (2013-07-25)

First useful release with base model and form fields.

0.1 (2013-06-10)

Initial release, mostly useless.