Set Default Value in Model Field

# models.py

from django.db import models

class Product(models.Model):
    name = models.CharField(max_length=100)
    price = models.DecimalField(max_digits=8, decimal_places=2, default=0.00)
    in_stock = models.BooleanField(default=True)
    created_at = models.DateTimeField(auto_now_add=True)

    def __str__(self):
        return f"{self.name} - ${self.price}"
  

# Django Shell

>>> from shop.models import Product
>>> product = Product.objects.create(name='Laptop')
>>> product.price
Decimal('0.00')
>>> product.in_stock
True
  

# Using functions for defaults

import uuid
from django.db import models

def generate_sku():
    return str(uuid.uuid4())[:8]

class Item(models.Model):
    name = models.CharField(max_length=100)
    sku = models.CharField(max_length=20, default=generate_sku)