django1/django/db/models/__init__.py

44 lines
1.6 KiB
Python

from functools import wraps
from django.core.exceptions import ObjectDoesNotExist # NOQA
from django.db.models import signals # NOQA
from django.db.models.aggregates import * # NOQA
from django.db.models.deletion import ( # NOQA
CASCADE, DO_NOTHING, PROTECT, SET, SET_DEFAULT, SET_NULL, ProtectedError,
)
from django.db.models.expressions import ( # NOQA
F, Case, Expression, ExpressionWrapper, Func, Value, When,
)
from django.db.models.fields import * # NOQA
from django.db.models.fields.files import FileField, ImageField # NOQA
from django.db.models.fields.proxy import OrderWrt # NOQA
from django.db.models.lookups import Lookup, Transform # NOQA
from django.db.models.manager import Manager # NOQA
from django.db.models.query import Q, Prefetch, QuerySet # NOQA
# Imports that would create circular imports if sorted
from django.db.models.base import Model # NOQA isort:skip
from django.db.models.fields.related import ( # NOQA isort:skip
ForeignKey, ForeignObject, OneToOneField, ManyToManyField,
ManyToOneRel, ManyToManyRel, OneToOneRel,
)
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
@wraps(func)
def inner(*args, **kwargs):
bits = func(*args, **kwargs)
return reverse(bits[0], None, *bits[1:3])
return inner