python
18 lines · 1 tab
Priya Sharma
Jan 2026
1 tab
from django.db import models
from django.utils import timezone
class Event(models.Model):
name = models.CharField(max_length=200)
start_time = models.DateTimeField()
created_at = models.DateTimeField(auto_now_add=True)
def is_upcoming(self):
"""Check if event is in the future."""
return self.start_time > timezone.now()
def local_start_time(self, tz_name='America/New_York'):
"""Get start time in specific timezone."""
import pytz
tz = pytz.timezone(tz_name)
return timezone.localtime(self.start_time, tz)
1 file · python
Explain with highlit
Django stores datetimes as UTC in the database when USE_TZ=True. I use timezone.now() instead of datetime.now() to get aware datetimes. The timezone.localtime() converts UTC to user's timezone for display. For user input, I use timezone.make_aware() to add timezone info. Template filters like {{ value|date }} respect TIME_ZONE setting. I'm careful with auto_now_add and auto_now as they always use UTC. For scheduling, I use django-celery-beat with timezone-aware crontabs. This prevents subtle bugs around DST transitions and international users.
Related snips
python
import os
import stat
for root, _dirs, files in os.walk('/etc'):
for name in files:
path = os.path.join(root, name)Python security audit script for exposed risky filesystem state
python
auditing
host-security
by Kai Nakamura
1 tab
python
class Product(models.Model):
name = models.CharField(max_length=200)
slug = models.SlugField(blank=True)
price = models.DecimalField(max_digits=10, decimal_places=2)
cost = models.DecimalField(max_digits=10, decimal_places=2)
margin = models.DecimalField(max_digits=5, decimal_places=2, blank=True)Django model signals vs overriding save
django
python
models
by Priya Sharma
2 tabs
python
from django.urls import path
from . import views
app_name = 'blog'
urlpatterns = [Django URL namespacing and reverse lookups
django
python
urls
by Priya Sharma
3 tabs
python
import graphene
from graphene_django import DjangoObjectType
from blog.models import Post, Comment
class PostType(DjangoObjectType):Django GraphQL with Graphene
django
python
graphql
by Priya Sharma
2 tabs
python
from django.db.models import Count, Avg, Sum, Q, F
from django.views.generic import TemplateView
from products.models import Product, Order, OrderItem
class DashboardView(TemplateView):Django aggregation with annotate for statistics
django
python
database
by Priya Sharma
1 tab
python
from rest_framework import permissions
class IsOwner(permissions.BasePermission):
"""Allow only object owner to access."""Django REST Framework permissions and authorization
django
python
rest
by Priya Sharma
2 tabs
Share this code
Here's the card — post it anywhere.
