Django QuerySet Not Filtering as Expected with Q Objects and Complex Conditions
I'm writing unit tests and I'm updating my dependencies and This might be a silly question, but I've been struggling with this for a few days now and could really use some help... I'm working with an scenario with filtering a Django QuerySet using Q objects for complex conditions. I have a model `Product` with fields `name`, `category`, and `price`. I want to filter products that either belong to a specific category and are above a certain price or are below a specific price regardless of the category. Here's the setup: ```python from django.db import models class Product(models.Model): name = models.CharField(max_length=100) category = models.CharField(max_length=100) price = models.DecimalField(max_digits=10, decimal_places=2) ``` I'm trying to achieve this filtering using the following code: ```python from django.db.models import Q # Example values category_filter = 'Electronics' price_threshold = 100.00 filtered_products = Product.objects.filter( Q(category=category_filter, price__gt=price_threshold) | Q(price__lt=price_threshold) ) ``` However, when I execute this query, it returns products that do not match the criteria I expected. For instance, I see products in all categories with prices that should have been filtered out based on my conditions. I expected to see products that fit either of the two conditions, but the results seem inconsistent. I've checked my database entries and confirmed there are products that should match the filter. To debug, I printed the SQL query generated by Django and it looks correct. I'm also using Django version 4.0.3 with PostgreSQL as the database backend. I've tried simplifying the query and reshuffling the conditions but to no avail. Is there something I'm overlooking in the use of Q objects, or perhaps there's an scenario in how the queryset is being evaluated? Any insights would be appreciated. I'm working on a API that needs to handle this. What am I doing wrong? What are your experiences with this? Is there a simpler solution I'm overlooking? This is my first time working with Python 3.10.