django

from products.models import Product


def import_products_bulk(product_data):
    """Import thousands of products efficiently."""
    products = [

from rest_framework import serializers
from .models import Author, Book


class BookSerializer(serializers.ModelSerializer):
    class Meta:

from django.db import models


class Post(models.Model):
    title = models.CharField(max_length=200)
    content = models.TextField()

from django.db import migrations


def populate_slugs(apps, schema_editor):
    """Generate slugs for existing posts."""
    Post = apps.get_model('blog', 'Post')

import random


class ReadWriteRouter:
    """Route reads to replicas, writes to primary."""

from blog.models import Post


# Load only specific fields
posts = Post.objects.only('id', 'title', 'published_at')
for post in posts:

import threading
from contextlib import contextmanager

_state = threading.local()

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql',
        'NAME': 'mydb',
        'USER': 'myuser',
        'PASSWORD': 'mypassword',

# Debug Toolbar setup
INSTALLED_APPS += ['debug_toolbar']

MIDDLEWARE = [
    'debug_toolbar.middleware.DebugToolbarMiddleware',
] + MIDDLEWARE

from rest_framework.pagination import PageNumberPagination, CursorPagination


class StandardResultsSetPagination(PageNumberPagination):
    page_size = 25
    page_size_query_param = 'page_size'

# Session configuration
SESSION_ENGINE = 'django.contrib.sessions.backends.cached_db'
SESSION_CACHE_ALIAS = 'default'
SESSION_COOKIE_AGE = 1209600  # 2 weeks in seconds
SESSION_COOKIE_SECURE = True  # HTTPS only
SESSION_COOKIE_HTTPONLY = True  # No JavaScript access

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


class Event(models.Model):
    name = models.CharField(max_length=200)