Code Explainers

Code explainers tagged #row-locking

python
from django.db import transaction
from django.db.models import F
from django.http import JsonResponse
from django.views.decorators.http import require_POST

Safely reordering tasks with a Django action

transactions row-locking validation
Advanced 8 steps
php
<?php
 
namespace App\Console\Commands;
 

Releasing stale document locks in Laravel

artisan-command transactions row-locking
Intermediate 6 steps
python
from decimal import Decimal, ROUND_HALF_UP
 
from django.db import transaction
from django.db.models import F

Batch price updates safely in Django

decimal-precision batch-processing transactions
Advanced 8 steps
python
from decimal import Decimal
 
from django.db import transaction
from django.core.exceptions import ValidationError

Placing an order atomically in Django

transactions row-locking concurrency
Advanced 9 steps