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qs = ... qs = qs.annotate(v=Count('a', filter=Q(a__lt=5))) a = qs.first().v b = qs.filter(… Read more Django Orm: How Count In Annotation Differ From Count On Query Set?

The ORM in Django lets us easily annotate (add fields to) querysets based on related data, hwoever … Read more Pivoting Data And Complex Annotations In Django Orm

In my viewSet I am doing a query, queryset= Books.objects.all(); Now from an ajax call I get my fi… Read more How To Add Filters To A Query Dynamically In Django?

I have two models: Model_A that contains a GeoDjango Point; Model_B that contains a GeoDjnago Mult… Read more Geodjango Query: All Point That Are Contained Into A Multi Polygon

I am trying to group products by DAY, however date_created is a datetime field. Product.objects.val… Read more Django Orm, Group By Day

Is comparing columns in different tables using less-than/greater-than operators supported in Django… Read more Comparing Object Fields With Django's Orm

I want to make a schema migration, just add 1 field to Model and to ModelAdmin. class MyModel(model… Read more Why I Am Getting An "(admin.e003) The Value Of 'raw_id_fields[n]' Must Be A Foreignkey Or Manytomanyfield." Error In Django App?