app/django/db/models/__init__.py
author Todd Larsen <tlarsen@google.com>
Fri, 26 Sep 2008 19:47:07 +0000
changeset 204 7075c27170f2
parent 54 03e267d67478
child 323 ff1a9aa48cfd
permissions -rw-r--r--
Add ModelWithFieldAttributes *before* PolyModel, so that everything does not become a "ModelWithFieldAttributes" in the Datastore. The way PolyModel works, each Model class hierarchy is stored in the Datastore as the class that directly inherited from PolyModel. So, we do not want to insert ModelWithFieldAttributes *after* PolyModel by inheriting *from* PolyModel, or everything would just be a ModelWithFieldAttributes in the Datastore, instead of Person, Work, Group, etc.

from django.conf import settings
from django.core.exceptions import ObjectDoesNotExist, ImproperlyConfigured
from django.core import validators
from django.db import connection
from django.db.models.loading import get_apps, get_app, get_models, get_model, register_models
from django.db.models.query import Q
from django.db.models.manager import Manager
from django.db.models.base import Model, AdminOptions
from django.db.models.fields import *
from django.db.models.fields.subclassing import SubfieldBase
from django.db.models.fields.related import ForeignKey, OneToOneField, ManyToManyField, ManyToOneRel, ManyToManyRel, OneToOneRel, TABULAR, STACKED
from django.db.models import signals
from django.utils.functional import curry
from django.utils.text import capfirst

# Admin stages.
ADD, CHANGE, BOTH = 1, 2, 3

def permalink(func):
    """
    Decorator that calls urlresolvers.reverse() to return a URL using
    parameters returned by the decorated function "func".

    "func" should be a function that returns a tuple in one of the
    following formats:
        (viewname, viewargs)
        (viewname, viewargs, viewkwargs)
    """
    from django.core.urlresolvers import reverse
    def inner(*args, **kwargs):
        bits = func(*args, **kwargs)
        return reverse(bits[0], None, *bits[1:3])
    return inner