Static Files

Static Files#

This page provides a comprehensive guide covering all aspects of Django static files management. Here are the key points to highlight:

  • The guide covers both development and production configurations

  • Shows multiple methods for overriding third-party static files

  • Includes best practices for organization and performance

  • Provides example configurations for popular deployment options

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Basic Setup#

Settings Configuration#

# settings.py

# Base directory for static files collection
STATIC_URL = '/static/'
STATIC_ROOT = BASE_DIR / 'staticfiles'  # Where collectstatic will collect files

# Additional locations of static files
STATICFILES_DIRS = [
    BASE_DIR / 'static',  # Your project's static files
]

# Static file finders - how Django looks for static files
STATICFILES_FINDERS = [
    'django.contrib.staticfiles.finders.FileSystemFinder',     # Looks in STATICFILES_DIRS
    'django.contrib.staticfiles.finders.AppDirectoriesFinder', # Looks in app/static/
]

Project Structure#

myproject/
├── myproject/
│   ├── settings.py
│   └── urls.py
├── static/                  # Project-level static files
│   ├── css/
│   ├── js/
│   └── images/
├── myapp/
│   └── static/             # App-level static files
│       └── myapp/          # Namespace to avoid conflicts
│           ├── css/
│           ├── js/
│           └── images/
└── staticfiles/            # Collected static files (production)

Development vs Production#

Development#

# settings/development.py
DEBUG = True

# Django's development server will automatically serve static files
# No need to run collectstatic

Production#

# settings/production.py
DEBUG = False

# Additional settings for production
STATIC_ROOT = BASE_DIR / 'staticfiles'
STATICFILES_STORAGE = 'django.contrib.staticfiles.storage.ManifestStaticFilesStorage'

# Optional: Configure compression and caching
STATICFILES_STORAGE = 'django.contrib.staticfiles.storage.CompressedManifestStaticFilesStorage'

Collecting Static Files#

# Collect all static files to STATIC_ROOT
python manage.py collectstatic

# Force collection even if files exist
python manage.py collectstatic --clear --no-input

Overriding Third-Party Static Files#

Method 1: Using STATICFILES_DIRS#

# settings.py
STATICFILES_DIRS = [
    # Override specific files from third-party packages
    ('admin/css/base.css', '/path/to/your/custom/base.css'),
    # General static files directory
    BASE_DIR / 'static',
]

Method 2: App-Level Override#

myapp/
└── static/
    └── third_party_app/  # Same name as the app you're overriding
        └── css/
            └── style.css  # File to override

Method 3: Using Template Loading Order#

# settings.py
INSTALLED_APPS = [
    'myapp',  # Your app first
    'third_party_app',  # Third-party app second
    # ... other apps
]

Using Static Files in Templates#

Template Tags#

{% load static %}

<!-- Basic usage -->
<link href="{% static 'css/style.css' %}" rel="stylesheet">
<img src="{% static 'images/logo.png' %}" alt="Logo">

<!-- With variables -->
<img src="{% static image_path %}" alt="{{ image_alt }}">

Handling Missing Files#

# settings.py
STATIC_URL = '/static/'
STATICFILES_STORAGE = 'django.contrib.staticfiles.storage.ManifestStaticFilesStorage'

# Optional: Custom storage class for better error handling
from django.contrib.staticfiles.storage import ManifestStaticFilesStorage

class CustomManifestStaticFilesStorage(ManifestStaticFilesStorage):
    def hashed_name(self, name, content=None, filename=None):
        try:
            result = super().hashed_name(name, content, filename)
        except ValueError:
            # Return original name if hashing fails
            result = name
        return result

Serving Static Files in Production#

Using Whitenoise#

# settings.py
MIDDLEWARE = [
    # ...
    'whitenoise.middleware.WhiteNoiseMiddleware',
]

# WhiteNoise configuration
STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'

# Optional: Enable Brotli compression
WHITENOISE_USE_FINDERS = True
WHITENOISE_COMPRESSION_QUALITY = 100

Using Nginx#

# nginx.conf
server {
    # ...
    location /static/ {
        alias /path/to/your/staticfiles/;
        expires 30d;
        add_header Cache-Control "public, no-transform";
    }
}

Best Practices#

Using Content Delivery Networks (CDN)#

# settings.py
# Use different static URLs based on environment
if not DEBUG:
    STATIC_URL = 'https://your-cdn.com/static/'

Organizing Static Files#

# Use namespaced folders to avoid conflicts
STATICFILES_DIRS = [
    BASE_DIR / 'static' / 'common',  # Shared assets
    BASE_DIR / 'static' / 'vendor',  # Third-party assets
]

Cache Control#

# settings.py
AWS_S3_OBJECT_PARAMETERS = {  # If using S3
    'CacheControl': 'max-age=86400',
}

# Or in nginx
location /static/ {
    expires max;
    add_header Cache-Control "public, no-transform";
}