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django-queryset

Simple Subquery with OuterRef

November 21, 2022 by Magenaut

I am trying to make a very simple Subquery that uses OuterRef (not for practical purposes, but just to get it working), but I keep running into the same error.

Categories MySQL, Q&A Tags django, django-database, django-queryset, mysql, python Leave a comment

Django MySQL distinct query for getting multiple values

November 20, 2022 by Magenaut

I have a MySQL database unfortunately used with Django 1.4.1.
Distinct function is only working for POSTGRESQL if i get it right.

Categories MySQL, Q&A Tags distinct, django, django-queryset, mysql, python Leave a comment

Get queryset objects grouped by an annotation value range

August 23, 2022 by Magenaut

I need to filter my objects in a way to get them grouped by range (range is fixed, for this case let’s say we have these 3 ranges [0.0, 33.0] [33.01, 66.0] [66.01, 100.0]

Categories Python, Q&A Tags aggregate, django, django-queryset, group-by, python Leave a comment

Django ORM returns non-iterable object

August 22, 2022 by Magenaut

The model is

Categories Python, Q&A Tags django, django-models, django-orm, django-queryset, python Leave a comment

How do I filter query objects by date range in Django?

August 21, 2022 by Magenaut

I’ve got a field in one model like:

Categories Python, Q&A Tags django, django-models, django-queryset, python Leave a comment

Django filter queryset __in for *every* item in list

August 20, 2022 by Magenaut

Let’s say I have the following models

Categories Python, Q&A Tags django, django-queryset, filter, python Leave a comment

Django Aggregation: Summation of Multiplication of two fields

August 17, 2022 by Magenaut

I have a model something like this:

Categories Python, Q&A Tags django, django-models, django-orm, django-queryset, python Leave a comment

How can I filter a Django query with a list of values?

August 17, 2022 by Magenaut

I’m sure this is a trivial operation, but I can’t figure out how it’s done.

Categories Python, Q&A Tags django, django-queryset, python Leave a comment

How do I do a not equal in Django queryset filtering?

August 17, 2022 by Magenaut

In Django model QuerySets, I see that there is a __gt and __lt for comparative values, but is there a __ne or != (not equals)? I want to filter out using a not equals. For example, for

Categories Python, Q&A Tags django, django-models, django-queryset, python Leave a comment

Getting the SQL from a Django QuerySet

August 16, 2022 by Magenaut

How do I get the SQL that Django will use on the database from a QuerySet object? I’m trying to debug some strange behavior, but I’m not sure what queries are going to the database. Answers: Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you … Read more

Categories Python, Q&A Tags django, django-queryset, python, sql Leave a comment
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