{
    "info": {
        "author": "Florent Messa",
        "author_email": "florent.messa@gmail.com",
        "bugtrack_url": null,
        "classifiers": [
            "Environment :: Web Environment",
            "Intended Audience :: Developers",
            "License :: OSI Approved :: MIT License",
            "Operating System :: OS Independent",
            "Programming Language :: Python :: 2.6",
            "Programming Language :: Python :: 2.7",
            "Programming Language :: Python :: 3.3",
            "Topic :: Utilities"
        ],
        "description": "django-metadata\n===============\n\nAttach metadata to any Django models using redis.\n\n.. image:: https://secure.travis-ci.org/thoas/django-metadata.png?branch=master\n    :alt: Build Status\n    :target: http://travis-ci.org/thoas/django-metadata\n\nInstallation\n------------\n\nEither check out the package from GitHub_ or it pull from a release via PyPI::\n\n       pip install django-metadata\n\nUsage\n-----\n\nWith ``django-metadata`` you can attach metadata to any Django models, you will\nbe able to link keys and theirs values to any instances.\n\nCurrently only Redis_ is supported with only redis-py_ as backend.\n\nLet's say you have this model:\n\n.. code-block:: python\n\n    # models.py\n\n    from django.db import models\n\n    class User(models.Model):\n        username = models.CharField(max_length=150)\n\nNow you have to attach the ``MetadataMixin`` to your model:\n\n.. code-block:: python\n\n    # models.py\n\n    from django.db import models\n\n    from metadata.mixins import MetadataMixin\n\n    class User(MetadataMixin, models.Model):\n        username = models.CharField(max_length=150)\n\n\nYou can customize the way ``django-metadata`` is storing your values by providing\na ``metadata_key`` property to your model:\n\n.. code-block:: python\n\n    # models.py\n\n    from django.db import models\n\n    from metadata.mixins import MetadataMixin\n\n    class User(MetadataMixin, models.Model):\n        username = models.CharField(max_length=150)\n\n        def metadata_key(self):\n            return 'metadata:utilisateur:%d' % self.pk\n\n\nBy default, the schema will be ``metadata:%(lowerclassname)s:%(primary_key)s``.\n\nNow we have connected our model to the mixin we can play with the API.\n\nThe API of ``MetadataContainer`` follows the same principes as ``dict``.\n\nAdding keys\n...........\n\n.. code-block:: python\n\n    >>> from myapp.models import User\n    >>> user = User.objects.create(username='thoas')\n    >>> user.metadata['mail_signup_sent'] = 1\n    >>> user = User.objects.get(username='thoas')\n    >>> user.metadata['mail_signup_sent']\n    1\n    >>> user.metadata = {'mail_signup_sent': 0}\n    >>> user.metadata['mail_signup_sent']\n    0\n\n\nRemoving keys\n.............\n\nYou can either removing a key by setting its value to ``None`` or use the ``del``\noperator.\n\n.. code-block:: python\n\n    >>> del user.metadata['key']\n    >>> user.metadata['key']\n    Traceback (most recent call last):\n        ...\n    KeyError: 'key'\n    >>> user.metadata.get('key', None)\n    None\n    >>> user.metadata['foo'] = 'bar'\n    >>> user.metadata['foo'] = None\n    >>> user.metadata['foo']\n    Traceback (most recent call last):\n        ...\n    KeyError: 'foo'\n    >>> user.metadata.get('foo', None)\n    None\n    >>> user.metadata['key'] = 'value'\n    >>> user.metadata['foo'] = 'bar'\n    >>> user.metadata = {'foo': None}\n    >>> user.metadata['foo']\n    Traceback (most recent call last):\n        ...\n    KeyError: 'foo'\n    >>> user.metadata['key']\n    value\n\nIterating keys\n..............\n\n.. code-block:: python\n\n    >>> 'value' in user.metadata\n    True\n    >>> user.metadata.values()\n    ['value']\n    >>> user.metadata.keys()\n    ['key']\n    >>> user.metadata.items()\n    [('key', 'value')]\n\nIncrementing keys\n.................\n\nAs we are using Redis as storing engine you can use some of its nice features:\n\n.. code-block:: python\n\n    >>> user.metadata.incr('counter')\n    >>> user.metadata['counter']\n    1\n    >>> user.metadata.incr('counter', 2)\n    >>> user.metadata['counter']\n    3\n\nInspiration\n-----------\n\n``django-metadata`` comes from an original idea of twidi_.\n\n.. _GitHub: https://github.com/thoas/django-metadata\n.. _redis-py: https://github.com/andymccurdy/redis-py\n.. _Redis: http://redis.io/\n.. _twidi: https://github.com/twidi",
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