Back
Sep 23, 2010

OR and AND without django.db.models.Q

I just found out that orand andare defined for QuerySet. This means that to do queries union or intersection, you can do:

User.objects.filter(...) | User.objects.filter(...)
User.objects.filter(...) & User.objects.filter(...)

Subscribe for the news and updates

More thoughts
Aug 27, 2024Technology
An Effective Preparation Algorithm for ISTQB Certification

This article offers key insights into the ISTQB certification and shares a proven preparation strategy to help candidates succeed.

Apr 11, 2024Technology
Test Analysis at the Feature Level

In the previous article, we learned about test analysis for a product in general, and now we are ready to go further and look at test analysis for specific features.

May 5, 2023Technology
The best CSS trends for 2023

Cascading Style Sheets (CSS) made its debut in 1996 and continue to be an indispensable and evolving component of web development. We will examine the most valuable recent and upcoming characteristics in CSS for this year.

Jun 25, 2011Technology
Ajax blocks in Django

Quite often we have to write paginated or filtered blocks of information on page. I created a decorator that would automate this process.

Jul 1, 2010Technology
Overriding QuerySet in Django

As you know, model managers can be overriden in Django. It's convenient to add custom filtration method.

Feb 18, 2010Technology
Absolute urls in models

Everybody knows about permalink, but it's usually used only in get_absolute_url. I prefer to use it for all related model urls.class Event(models.Model):# ...@models.permalinkdef edit_url(self):return ('event_edit', (self.pk, ))And then in template:<a href="{{ event.edit_url }}">Редактировать событие</a>