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 3, 2024Technology
Test Analysis at the Product Level

Test analysis is an essential and crucial activity in the testing process. A well-organized test analysis provides an adequate level of confidence in the overall effectiveness of the testing and contributes to the delivery of high-quality software.

Sep 26, 2023TechnologyBusiness
13 Web Development Innovations to Adopt in the Next Year

Web development has undergone significant changes over the past five years due to a combination of technological advancements and changing user needs. Let's look at the drivers of these changes and the key technologies that have played a decisive role.

Jun 1, 2018Technology
Site search organization: basic concepts

Now it's time to get acquainted with Elasticsearch. This NoSQL database is used to store logs, analyze information and - most importantly - search.

May 9, 2018Technology
How to Generate PDF Files in Python with Xhtml2pdf, WeasyPrint or Unoconv

Programmatic generation of PDF files is a frequent task when developing applications that can export reports, bills, or questionnaires. In this article, we will consider three common tools for creating PDFs, including their installation and converting principles.

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.