Code Explainers

Code explainers tagged #data modeling

python 
from django.db import models
from django.db.models import Q
from django.conf import settings
 

Enforcing one default address per user in Django

data modeling database constraints partial index
Intermediate 7 steps
ruby 
class PaymentMethod < ApplicationRecord
  belongs_to :account
 
  encrypts :card_number, deterministic: false

How Rails encrypts sensitive payment fields

encryption validation scopes
Intermediate 9 steps