Metadata-Version: 1.0
Name: dj-queryset-manager
Version: 0.1.3
Summary: Stop writing Django querysets.
Home-page: https://github.com/nosamanuel/dj-queryset-manager
Author: Noah Seger
Author-email: nosamanuel@gmail.com
License: Copyright (c) 2013, Noah Seger

All rights reserved.

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are permitted provided that the following conditions are met:

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      may be used to endorse or promote products derived from this software
      without specific prior written permission.

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Description: dj-queryset-manager
        ~~~~~~~~~~~~~~~~~~~
        
        A Django utility that makes it simple to write DRY queryset methods.
        
        
        Warning
        -------
        
        dj-queryset-manager only works with Django versions 1.2 through 1.6.
        
        In Django 1.7 it has been superseded by ``QuerySet.as_manager()``. See `the docs <https://docs.djangoproject.com/en/dev/ref/models/querysets/#django.db.models.query.QuerySet.as_manager>`_.
        
        
        Usage
        -----
        
        1. Create a manager class that inherit the ``QuerySetManager``
        2. Decorate your filter methods with ``queryset_method``. **These methods receive a queryset instead of a manager as the first argument**.
        
        .. code:: python
        
            from dj_queryset_manager import QuerySetManager, queryset_method
        
            class MyManager(QuerySetManager):
                @queryset_method
                def by_slug(queryset, slug):
                    return queryset.filter(slug=slug)
        
                @queryset_method
                def filter(queryset, *args, **kwargs):
                    return super(type(queryset), queryset).filter(*args, **kwargs)
        
        
        For reference, here is a standard implementation:
        
        .. code:: python
        
            from django.db.models import Manager
            from django.db.models.query import QuerySet
        
            class MyQuerySet(QuerySet):
                def by_slug(self, slug):
                    return self.filter(slug=slug)
        
                def filter(self, *args, **kwargs):
                    return super(MyQuerySet, self).filter(*args, **kwargs)
        
        
            class MyManager(Manager):
                def get_query_set(self): # Better remember the arguments to QuerySet
                    QuerySet(self.model, using=self._db)
        
                def get_queryset(self): # And don't forget about Django 1.6
                    return self.get_query_set()
        
                def by_slug(self, *args, **kwargs):  # Enjoy this duplicate signature
                    return self.get_queryset().filter(*args, **kwargs)
        
        
        Mix-in
        ------
        
        Some third-party apps ship managers as part of their API. If you need to extend any existing manager, use the ``QuerySetManagerMixin``. This example uses the ``InheritanceManager`` from `django-model-utils <https://github.com/carljm/django-model-utils>`_.
        
        .. code:: python
        
            from model_utils.managers import InheritanceManager
            from dj_queryset_manager import QuerySetManagerMixin, queryset_method
        
            class MyInheritanceManager(QuerySetManagerMixin, InheritanceManager):
                @queryset_method
                def by_slug(queryset, slug):
                    return queryset.filter(slug=slug)
        
        
        Installation
        ------------
        
            $ pip install dj-queryset-manager
        
Platform: UNKNOWN
