How can I use advanced filtering with Django querysets?

How can I use advanced filtering with Django querysets?

You can use the filter() method with various lookups to perform advanced filtering. For example, you can filter by multiple fields or use Q objects for complex queries.

Can you give me an example of using Q objects?

Sure! You can use Q objects to combine queries. For instance: from django.db.models import Q and then MyModel.objects.filter(Q(field1=value1) | Q(field2=value2)).

What about filtering with annotations?

You can use annotate() to add calculated fields and then filter on those. For example: MyModel.objects.annotate(total=Count('related_model')).filter(total__gt=5).

Are there any performance considerations I should keep in mind?

Yes, using too many joins or complex queries can slow down performance. Always analyze your queries and consider using select_related() or prefetch_related().