Resolving Django Migration Errors from Triggers

Django Web Framework Tutorials

This frustrating error blocks you from executing schema changes on a table that has triggers enabled. In this post, we’ll explore why this error occurs and how to resolve it. When running migrations in Django, you may encounter an error like: Understanding Django Migration Errors First, let’s review what’s happening when you get this error. … Read more

Applying Django Database Migrations with Docker Compose

Django Web Framework Tutorials

When developing Django applications using Docker Compose for the local environment, managing database changes can require some special handling. In particular, applying Django migrations within the Docker-Composed environment requires coordination between the app container and the database container. Here is an overview of why this extra coordination is needed and some best practices for streamlining … Read more

Referencing Django Settings in models.py

Django Web Framework Tutorials

When building a Django application, you may need to reference configuration variables from settings.py in other parts of your code. One common place is in models.py, where you define your database models. Accessing settings allows you to parameterize aspects of your models. For example, you can define the default database or control auto-created fields like … Read more

Restricting Model Add Actions in Django Admin

Django Web Framework Tutorials

The Django admin interface provides a convenient way to manage database content by automatically generating interfaces to create, view, edit, and delete records. By default, the admin allows all database operations on all models. However, in some cases, you may want to restrict the ability to add new records for certain models. Why Restrict Add … Read more

Is it Secure to Store Passwords as Environment Variables in Django?

Django Web Framework Tutorials

When building a Django application, one of the most important considerations is how to securely store sensitive data like passwords, API keys, and other credentials. A common question that arises is whether it is safe to store these secrets as environment variables rather than hardcoding them in config files. In this post, we’ll explore the … Read more

Dealing with “Table Already Exists” Errors in Django South

Django Web Framework Tutorials

Django South is a useful database migration tool for Django projects. It allows you to make changes to your models and automatically generate migrations to update your database schema. However, you may encounter frustrating “table already exists” errors when running these migrations. In this post, we’ll explore some common causes and solutions for these errors. … Read more

Resolving “Django Reverse with arguments ‘()’ and keyword arguments ‘{}’ not found”

Django Web Framework Tutorials

Django‘s reverse() function is incredibly useful for programmatically generating URLs in your views and templates. However, you may sometimes run into the frustrating error “Reverse with arguments ‘()’ and keyword arguments ‘{}’ not found”. In this blog post, I’ll explain what’s causing this error and show you exactly how to fix it. Understanding Django’s Reverse … Read more

Duplicating Your Python Virtualenv

Django Web Framework Tutorials

As your Python projects grow in complexity, you may find yourself needing to manage multiple versions of packages and Python itself. Virtualenvs allow you to create isolated Python environments to keep dependencies separate. However, replicating an environment manually is tedious. Luckily, there are simpler methods to duplicate your virtualenv. Getting Started First, a quick overview … Read more

Iterating Through a Dictionary in a Dictionary in Django Templates

Django Web Framework Tutorials

Django templates provide several useful filters and tags for looping through and accessing data in dictionaries and lists. However, iterating through nested data structures like a dictionary inside a dictionary can be tricky. In this post, I’ll explain different methods for looping through and accessing nested dictionary’s data in Django templates. Using Dot Notation in … Read more

Accessing Local Django Server Externally

Django Web Framework Tutorials

Getting started with Django web development typically involves running the development server on localhost to preview your site. However, there may be times when you need to access your local development site from another device on the same network. Fortunately, with a few configuration tweaks, you can externally access your Django site hosted locally. Enabling … Read more