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4 paź 2012 · Try using a defaultdict. from collections import defaultdict users = defaultdict (list) for result in UserExtendedProfile.objects.values ('company', 'user').order_by ('company', 'user'): users [result ['company']].append (result ['user']) With this you should get on users the structure you want.
29 wrz 2016 · Django automatically creates a 'reverse relation' for every foreign key pointing at a model, and that is usually the name of the related model plus _set. So: mycriteria.options_set.all() mycriteria.header_set.all() will give you all the options and header objects related to a criteria object mycriteria.
1 kwi 2024 · Django provides a powerful tool called Generic Foreign Keys for establishing relationships between models with a polymorphic nature. This article delves into this concept, exploring the...
30 mar 2022 · Entry about using ForeignKey or foreign key to 'self' in Django to create hierarchical structures or unbounded categories.
One of the examples of such problem is choosing the right way to declare a list of available choices passed to Django model fields (eg. CharField). I’ll try to compare different ways of declaring Django choices list, pointing out the advantages and drawbacks of each solution.
26 gru 2023 · Learn how to perform Django ORM foreign key queries with this comprehensive guide. Includes examples of how to use foreign keys to query for related objects, update data in related objects, and delete related objects.
Foreign Keys with Models - Django Tutorial. Welcome to part 9 of the web development with Python and Django tutorial series. In this tutorial, we're going to work on the organization of tutorials through the use of foreign keys which will allow us to tie certain elements in a database table to another database table's data.
