easy-thumbnails

import os # settings.py INSTALLED_APPS = [ # ... 'easy_thumbnails', ] THUMBNAIL_ALIASES = { '': { 'avatar': {'size': (50, 50), 'crop': True}, 'profile_square': {'size': (200, 200), 'crop': 'smart'}, }, } # models.py from django.db import models from easy_thumbnails.fields import ThumbnailerImageField class Profile(models.Model): user = models.OneToOneField('auth.User', on_delete=models.CASCADE) photo = ThumbnailerImageField(upload_to='profile_photos', blank=True, null=True) def __str__(self): return self.user.username # In a Django template (e.g., profile.html) # {% load thumbnail %} # <img src="{{ profile.photo|thumbnail_url:'avatar' }}" alt="{{ profile.user.username }} avatar" /> # Or, with custom options directly in template # {% load thumbnail %} # <img src="{% thumbnail profile.photo 100x100 crop %}" alt="Profile photo" /> # In Python code # from easy_thumbnails.files import get_thumbnailer # profile_instance = Profile.objects.get(pk=1) # if profile_instance.photo: # thumbnailer = get_thumbnailer(profile_instance.photo) # avatar_url = thumbnailer['avatar'].url # print(f"Avatar URL: {avatar_url}") # Run migrations after adding to INSTALLED_APPS and defining models: # python manage.py migrate easy_thumbnails