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Viewing changes to django/db/models/__init__.py

  • Committer: adrian
  • Date: 2006-05-02 01:31:56 UTC
  • Revision ID: vcs-imports@canonical.com-20060502013156-2941fcd40d080649
MERGED MAGIC-REMOVAL BRANCH TO TRUNK. This change is highly backwards-incompatible. Please read http://code.djangoproject.com/wiki/RemovingTheMagic for upgrade instructions.

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django/db/models/__init__.py
 
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from django.conf import settings
 
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from django.core.exceptions import ObjectDoesNotExist, ImproperlyConfigured
 
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from django.core import validators
 
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from django.db import backend, connection
 
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from django.db.models.loading import get_apps, get_app, get_models, get_model, register_models
 
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from django.db.models.query import Q
 
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from django.db.models.manager import Manager
 
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from django.db.models.base import Model, AdminOptions
 
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from django.db.models.fields import *
 
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from django.db.models.fields.related import ForeignKey, OneToOneField, ManyToManyField, ManyToOneRel, ManyToManyRel, OneToOneRel, TABULAR, STACKED
 
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from django.db.models import signals
 
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from django.utils.functional import curry
 
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from django.utils.text import capfirst
 
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# Admin stages.
 
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ADD, CHANGE, BOTH = 1, 2, 3
 
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class LazyDate:
 
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    """
 
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    Use in limit_choices_to to compare the field to dates calculated at run time
 
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    instead of when the model is loaded.  For example::
 
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        ... limit_choices_to = {'date__gt' : models.LazyDate(days=-3)} ...
 
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    which will limit the choices to dates greater than three days ago.
 
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    """
 
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    def __init__(self, **kwargs):
 
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        self.delta = datetime.timedelta(**kwargs)
 
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    def __str__(self):
 
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        return str(self.__get_value__())
 
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    def __repr__(self):
 
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        return "<LazyDate: %s>" % self.delta
 
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    def __get_value__(self):
 
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        return datetime.datetime.now() + self.delta
 
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    def __getattr__(self, attr):
 
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        return getattr(self.__get_value__(), attr)