goutham2027

pip install django-reversion

Add reversion to INSTALLED_APPS

INSTALLED_APPS = [
...
...
...

chriskief

from itertools import chain
from operator import attrgetter


# ascending oreder
result_list = sorted(
    chain(queryset1, queryset2),
    key=attrgetter('date_created'))
    
# descending order

mattmcc

class ViewManager(models.Manager):
    def bulk_create(self, *args, **kwargs):
        raise NotImplementedError

    def create(self, *args, **kwargs):
        raise NotImplementedError

    def get_or_create(self, *args, **kwargs):
        raise NotImplementedError

rturowicz

# admin.py: admin action definition
def make_copy(self, request, queryset):
    form = None

    if 'apply' in request.POST:
        form = CopyPageForm(request.POST)

        if form.is_valid():
            issue = form.cleaned_data['issue']

josharian

"""
This module provides very simple Django middleware that sleeps on every request.

This is useful when you want to simulate slow response times (as might be
encountered, say, on a cell network).

To use, add this middleware, and add a value for SLEEP_TIME to your settings.

Possible future feature: Look for an X-Django-Sleep header on each request,
to let the client specify per-request sleep time.

harpiechoise

X-Wei

// Sliver appbar with tabs.
// Adapted from: https://stackoverflow.com/a/50858058

import 'package:flutter/material.dart';

void main() => runApp(MaterialApp(
      home: SilverAppBarWithTabBarScreen(),
    ));

class SilverAppBarWithTabBarScreen extends StatefulWidget {

mdesantis

TL;DR

Install Postgres 10, and then:

sudo pg_dropcluster 10 main --stop
sudo pg_upgradecluster 9.6 main
sudo pg_dropcluster 9.6 main

magopian

# -*- coding: utf-8 -*-

"""Add permissions for proxy model.

This is needed because of the bug https://code.djangoproject.com/ticket/11154
in Django (as of 1.6, it's not fixed).

When a permission is created for a proxy model, it actually creates if for it's
base model app_label (eg: for "article" instead of "about", for the About proxy
model).

emil2k

/*
 * Copyright (c) 2017 Emil Davtyan
 * 
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions: