/django-modeldict

Stores a model as a dictionary

Primary LanguagePythonApache License 2.0Apache-2.0

django-modeldict

https://travis-ci.org/adamchainz/django-modeldict.svg?branch=master

ModelDict is a very efficient way to store things like settings in your database. The entire model is transformed into a dictionary (lazily) as well as stored in your cache. It's invalidated only when it needs to be (both in process and based on CACHE_BACKEND).

It was originally created by Disqus, but due to the inactivity we at YPlan have taken over maintenance on this fork.

Requirements

Tested with all combinations of:

  • Python: 3.6
  • Django: 1.11, 2.0, 2.1

Python 3.4+ supported.

Install

Install it with pip:

pip install django-modeldict-yplan

Make sure you pip uninstall django-modeldict first if you're upgrading from the original to this fork - the packages clash.

Example Usage

# You'll need a model with fields to use as key and value in the dict
class Setting(models.Model):
    key = models.CharField(max_length=32)
    value = models.CharField(max_length=200)

# Create the ModelDict...
settings = ModelDict(Setting, key='key', value='value', instances=False)

# And you can treat it like a normal dict:

# Missing values = KeyError
settings['foo']
>>> KeyError

# Sets supported
settings['foo'] = 'hello'

# Fetch the current value using normal dictionary access
settings['foo']
>>> 'hello'

# ...or by normal model queries
Setting.objects.get(key='foo').value
>>> 'hello'