Django ORM Patterns

Master Django ORM for building efficient, scalable database-driven applications with complex queries and relationships.

Model Definition

Define models with proper field types, constraints, and metadata.

from django.db import models
from django.core.validators import MinValueValidator, MaxValueValidator

class User(models.Model):
    email = models.EmailField(unique=True, db_index=True)
    name = models.CharField(max_length=100)
    is_active = models.BooleanField(default=True)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)