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Prefetching in Django: less queries
Image (Daniel Bonilla): Casa Batlló by Gaudí in Barcelona, one of my favorite masterpieces in architecture.
Deep into Django
I love diving into the core of my favorite framework - Django - discovering and writing about new tech stuff.
Latest articles
Selection widget for which columns to display in Django admin
When working in the Django admin with a lot of users, you might sometimes want to offer the functionality to users to choose which columns they want to see in the changelist page. For some users some columns might be more relevant than to others. One...
Managing superusers when using the Django admin as a backend for employees
Expiring a superuser in Django after a due date
Keeping accurate amounts in Django with CurrencyField
At Wundermart we started saving monetary amounts in Django, we naively started with DecimalField(decimal_places=2) for our financial data. After some time we realized that you will lose data this way when applying calculations, for example: €100 * 0....
Diff mixin to detect changes in Django models instances
Suppose you change your Django model instance, how do you know if the data actually changed? There are a few ways to achieve this, for example using django-simple-history which will add a database entry for every change to keep history. However, you ...
Show deleted entries in Django Simple History
The django-simple-history package is awesome as it shows you all the activity on a certain Django model object. It allows seeing how it was mutated over time and who changed it. However, there is one caveat: you cannot easily see what objects were de...
JWT Authentication class for python requests
When using the requests library in Python you can use some built-in auth mechanisms like HTTPBasicAuth and HTTPDigestAuth. However, I could not find any package that allows doing a simple JSON Web Token (JWT) authentication, so I decided to make a sn...
Reducing queries for ForeignKeys in Django admin inlines
Use 93x less queries using patched raw_id_fields and prefetching
Handling Django exceptions in the middleware
Prevent 500 error raised by exceptions by catching them in the middleware