rafales

BEGIN TRANSACTION;
CREATE TABLE "user"
(
    "id" SERIAL PRIMARY KEY,
    "name" VARCHAR NOT NULL,
    "email" VARCHAR NOT NULL
);
CREATE TABLE "post"
(
    "id" SERIAL PRIMARY KEY,

rafales

class cached_property(object):
    """
    Decorator that converts a method with a single self argument into a
    property cached on the instance.
    """
    def __init__(self, func):
        self.func = func

    def __get__(self, instance, type=None):
        if instance is None:

rafales

import contextlib
from copy import deepcopy
from django.db.models.expressions import ExpressionNode, F
from django.db.models.fields.files import FileField
from django.db.models.query import QuerySet
from django.db import models, transaction
import operator


def get_object_or_none(cls, *args, **kwargs):