Django ORM not returning expected results when using Q objects for complex queries with annotations
I've been working on this all day and I'm currently working with Django 4.0 and trying to filter a queryset using Q objects along with annotations... I've defined a model `Product` with fields `name`, `price`, and `category`. My goal is to retrieve products that belong to a specific category and have a price above the average price for that category. I've created an annotation to calculate the average price but when I run my query, it doesn't return any results, and I need to figure out why. Here’s what I have: ```python from django.db.models import Q, Avg # Assuming we have a Product model defined like this: class Product(models.Model): name = models.CharField(max_length=100) price = models.DecimalField(max_digits=10, decimal_places=2) category = models.CharField(max_length=50) category_name = 'Electronics' # Annotating to get the average price of the specific category average_price = Product.objects.filter(category=category_name).aggregate(Avg('price'))['price__avg'] # Using Q to filter products in that category with price greater than average products = Product.objects.filter( Q(category=category_name) & Q(price__gt=average_price) ) ``` When I print `average_price`, it shows `None` which makes sense since it's not finding any products in that category. However, I know for a fact that there are products in the 'Electronics' category. I’ve double-checked the database entries and they exist. What could be causing this scenario? I've tried running the query directly in the Django shell, and the same thing happens. Any insights on how to debug this scenario or correct my approach would be greatly appreciated. This is my first time working with Python 3.10. I'd really appreciate any guidance on this. The stack includes Python and several other technologies. Any feedback is welcome!