Subscriptions: attach stripe subscription to organizations

[stsewd]

After deploying this code, we need to attach the proper stripe subscription object to organizations

from djstripe.enums import SubscriptionStatus
from readthedocs.organizations.models import Organization

organizations = (
    Organization.objects.filter(stripe_subscription=None)
    .exclude(stripe_customer=None)
    .select_related("stripe_customer")
)
for organization in organizations:
    stripe_subscription = organization.stripe_customer.subscriptions.filter(
        status=SubscriptionStatus.active
    ).first()
    if not stripe_subscription:
        stripe_subscription = organization.stripe_customer.subscriptions.latest()
    organization.stripe_subscription = stripe_subscription
    organization.save()

Closes #9652
Closes https://github.com/readthedocs/readthedocs-corporate/issues/1508
Ref #9313 (comment)

[humitos]

This is good to me. I'd like to see more comments in the code only, but 👍🏼

[humitos]

Suggested change

	active_subscription = self.stripe_customer.subscriptions.filter(
	# Always return the active subscription first if the customer has multiple subscriptions
	active_subscription = self.stripe_customer.subscriptions.filter(

[humitos]

Suggested change

	if not subscription:
	# This only happens during development.
	if not subscription and settings.DEBUG:
	# This only happens during development.

Make sure that this only happens on development. Otherwise, we should log an error/warning here.

[humitos]

What is the case where this can happen? I'm not sure to follow it. If Stripe Checkout is the one that creates the Subscription, why we would not find it after that?

[stsewd]

just being defensive, the creation of the subs object could have failed or could have been deleted.