DRF_Template/backend/subscriptions/signals.py

95 lines
3.5 KiB
Python

import stripe
from config.settings import STRIPE_SECRET_KEY
from django.core.cache import cache
from django.db.models.signals import post_migrate, post_save
from django.dispatch import receiver
from .models import StripePrice, SubscriptionPlan, UserSubscription
stripe.api_key = STRIPE_SECRET_KEY
# Template for running actions after user have paid for a subscription
@receiver(post_save, sender=SubscriptionPlan)
def clear_cache_after_plan_updates(sender, instance, **kwargs):
# Clear cache
cache.delete("subscriptionplans")
@receiver(post_save, sender=UserSubscription)
def scan_after_payment(sender, instance, **kwargs):
# If the updated/created subscription is valid
if instance.valid and instance.user:
# TODO: Add any Celery task actions here for regular subscription payees
pass
@receiver(post_migrate)
def create_subscriptions(sender, **kwargs):
if sender.name == "subscriptions":
print("Importing data from Stripe")
created_prices = 0
created_plans = 0
skipped_prices = 0
skipped_plans = 0
products = stripe.Product.list(active=True)
prices = stripe.Price.list(expand=["data.tiers"], active=True)
# Create the StripePrice
for price in prices["data"]:
annual = (
(price["recurring"]["interval"] == "year")
if price["recurring"]
else False
)
STRIPE_PRICE, CREATED = StripePrice.objects.get_or_create(
stripe_price_id=price["id"],
price=price["unit_amount"] / 100,
annual=annual,
lookup_key=price["lookup_key"],
prorated=price["recurring"]["usage_type"] == "metered",
currency=price["currency"],
)
if CREATED:
created_prices += 1
else:
skipped_prices += 1
# Create the SubscriptionPlan
for product in products["data"]:
ANNUAL_PRICE = None
MONTHLY_PRICE = None
for price in prices["data"]:
if price["product"] == product["id"]:
STRIPE_PRICE = StripePrice.objects.get(
stripe_price_id=price["id"],
)
if STRIPE_PRICE.annual:
ANNUAL_PRICE = STRIPE_PRICE
else:
MONTHLY_PRICE = STRIPE_PRICE
if ANNUAL_PRICE or MONTHLY_PRICE:
SUBSCRIPTION_PLAN, CREATED = SubscriptionPlan.objects.get_or_create(
name=product["name"],
description=product["description"],
stripe_product_id=product["id"],
annual_price=ANNUAL_PRICE,
monthly_price=MONTHLY_PRICE,
group_exclusive=product["metadata"]["group_exclusive"] == "True",
)
if CREATED:
created_plans += 1
else:
skipped_plans += 1
# Skip over plans with missing pricing rates
else:
print("Skipping plan" + product["name"] + "with missing pricing data")
# Assign the StripePrice to the SubscriptionPlan
SUBSCRIPTION_PLAN.save()
print("Created", created_plans, "new plans")
print("Skipped", skipped_plans, "existing plans")
print("Created", created_prices, "new prices")
print("Skipped", skipped_prices, "existing prices")