Django code explainers

python

import re
 
from django.core.exceptions import ValidationError
from django.core.validators import RegexValidator

Building a deconstructible validator in Django

validation regex deconstructible

Intermediate 7 steps

python

from datetime import timedelta
 
from django.contrib.sessions.models import Session
from django.core.management.base import BaseCommand

A batched session-cleanup command in Django

management-command batch-processing database-cleanup

Intermediate 7 steps

python

from django.db.models import Prefetch, Count
from django.views.generic import ListView
 
from .models import Article, Comment

Building an efficient article list in Django

orm query-optimization prefetching

Intermediate 6 steps

python

from django.db import models
from django.utils.text import slugify

Auto-generating unique slugs in Django

slugs orm model-methods

Intermediate 7 steps

python

from django.core.cache import cache
from rest_framework.throttling import SimpleRateThrottle

A login rate throttle in Django REST Framework

rate-limiting caching throttling

Intermediate 8 steps

python

from django.conf import settings
from django.contrib.auth import get_user_model
from django.core.mail import EmailMultiAlternatives
from django.db.models.signals import post_save

Sending a welcome email with Django signals

signals email user-activation

Intermediate 8 steps

python

import json
import logging
 
import stripe

Handling Stripe webhooks in Django

webhooks signature-verification idempotency

Intermediate 7 steps

python

from django.db.models import Sum, Count, F, DecimalField
from django.db.models.functions import TruncMonth, Coalesce
 
from .models import Order

Build a monthly revenue report in Django

aggregation orm group-by

Advanced 7 steps

python

from django.db import models
from django.utils import timezone

How soft deletes work in Django

soft-delete querysets managers

Intermediate 10 steps