django1/django/db/models/__init__.py

73 lines
2.6 KiB
Python

from django.core.exceptions import ObjectDoesNotExist
from django.db.models import signals
from django.db.models.aggregates import * # NOQA
from django.db.models.aggregates import __all__ as aggregates_all
from django.db.models.deletion import (
CASCADE, DO_NOTHING, PROTECT, SET, SET_DEFAULT, SET_NULL, ProtectedError,
)
from django.db.models.expressions import (
Case, Exists, Expression, ExpressionWrapper, F, Func, OuterRef, Subquery,
Value, When,
)
from django.db.models.fields import * # NOQA
from django.db.models.fields import __all__ as fields_all
from django.db.models.fields.files import FileField, ImageField
from django.db.models.fields.proxy import OrderWrt
from django.db.models.indexes import * # NOQA
from django.db.models.indexes import __all__ as indexes_all
from django.db.models.lookups import Lookup, Transform
from django.db.models.manager import Manager
from django.db.models.query import (
Prefetch, Q, QuerySet, prefetch_related_objects,
)
# Imports that would create circular imports if sorted
from django.db.models.base import DEFERRED, Model # isort:skip
from django.db.models.fields.related import ( # isort:skip
ForeignKey, ForeignObject, OneToOneField, ManyToManyField,
ManyToOneRel, ManyToManyRel, OneToOneRel,
)
def permalink(func):
"""
Decorator that calls urls.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)
"""
import warnings
from functools import wraps
from django.urls import reverse
from django.utils.deprecation import RemovedInDjango21Warning
warnings.warn(
'permalink() is deprecated in favor of calling django.urls.reverse() '
'in the decorated method.',
RemovedInDjango21Warning
)
@wraps(func)
def inner(*args, **kwargs):
bits = func(*args, **kwargs)
return reverse(bits[0], None, *bits[1:3])
return inner
__all__ = aggregates_all + fields_all + indexes_all
__all__ += [
'ObjectDoesNotExist', 'signals',
'CASCADE', 'DO_NOTHING', 'PROTECT', 'SET', 'SET_DEFAULT', 'SET_NULL',
'ProtectedError',
'Case', 'Exists', 'Expression', 'ExpressionWrapper', 'F', 'Func',
'OuterRef', 'Subquery', 'Value', 'When',
'FileField', 'ImageField', 'OrderWrt', 'Lookup', 'Transform', 'Manager',
'Prefetch', 'Q', 'QuerySet', 'prefetch_related_objects', 'DEFERRED', 'Model',
'ForeignKey', 'ForeignObject', 'OneToOneField', 'ManyToManyField',
'ManyToOneRel', 'ManyToManyRel', 'OneToOneRel', 'permalink',
]