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Add script to schedule in price changes.
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subscriptions/management/commands/schedule_price_change.py
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| from django.conf import settings | ||
| from django.core.management.base import BaseCommand | ||
| import stripe | ||
|
|
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| from subscriptions.models import Subscription | ||
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| stripe.api_key = settings.STRIPE_SECRET_KEY | ||
| stripe.api_version = settings.STRIPE_API_VERSION | ||
|
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|
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| class Command(BaseCommand): | ||
| help = "Update subscriptions on one Stripe Price to a different Price" | ||
|
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| def add_arguments(self, parser): | ||
| prices = stripe.Price.list(limit=100, expand=['data.product']) | ||
| price_ids = [price.id for price in prices if price.product.name.startswith('MapIt')] | ||
| parser.add_argument('--old-price', choices=price_ids, required=True) | ||
| parser.add_argument('--new-price', choices=price_ids, required=True) | ||
| parser.add_argument('--commit', action='store_true') | ||
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| def new_schedule(self, subscription, new_price): | ||
| schedule = stripe.SubscriptionSchedule.create(from_subscription=subscription.id) | ||
| phases = [ | ||
| { | ||
| 'items': [{'price': schedule.phases[0]['items'][0].price}], | ||
| 'start_date': schedule.phases[0].start_date, | ||
| 'iterations': 2, | ||
| 'proration_behavior': 'none', | ||
| 'default_tax_rates': [settings.STRIPE_TAX_RATE], | ||
| }, | ||
| { | ||
| 'items': [{'price': new_price}], | ||
| 'iterations': 1, | ||
| 'proration_behavior': 'none', | ||
| 'default_tax_rates': [settings.STRIPE_TAX_RATE], | ||
| }, | ||
| ] | ||
| # Maintain current discount, if any | ||
| if schedule.phases[0].discounts and schedule.phases[0].discounts[0].coupon: | ||
| phases[0]['discounts'] = [{'coupon': schedule.phases[0].discounts[0].coupon}] | ||
| phases[1]['discounts'] = [{'coupon': schedule.phases[0].discounts[0].coupon}] | ||
| stripe.SubscriptionSchedule.modify(schedule.id, phases=phases) | ||
|
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| def handle(self, *args, **options): | ||
| old_price = options['old_price'] | ||
| new_price = options['new_price'] | ||
|
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| for sub_obj in Subscription.objects.all(): | ||
| subscription = stripe.Subscription.retrieve(sub_obj.stripe_id, expand=[ | ||
| 'schedule.phases.items.price', 'discounts']) | ||
| if subscription.discounts and subscription.discounts[0].coupon.id == 'charitable100': | ||
| # Ignore free subscriptions | ||
| continue | ||
| if subscription.status != 'active': | ||
| # Ignore non-active subscriptions | ||
| continue | ||
|
|
||
| # Possibilities: | ||
| # * No schedule, just a monthly plan | ||
| # * 3 phases: This script has already been run on this subscription - nothing to do | ||
| # * 2 phases: Asked for a downgrade, so either in first phase | ||
| # current price, then new price, then no schedule; or is already | ||
| # at new price in second phase | ||
| # * 2 phases: Already on 'new price' schedule, awaiting change - nothing to do | ||
| sub_info = f"{subscription.id} {sub_obj.user.email}" | ||
| if subscription.schedule: | ||
| schedule = subscription.schedule | ||
| if len(schedule.phases) > 2: | ||
| self.stdout.write(f"{sub_info} has {len(schedule.phases)} phases, assume processed already") | ||
| elif len(schedule.phases) == 2: | ||
| if schedule.phases[1]['items'][0].price.id != old_price: | ||
| continue | ||
| if schedule.current_phase.start_date == schedule.phases[1].start_date: | ||
| # In phase 2 | ||
| self.stdout.write(f"{sub_info} has two phases, in latter, start new schedule") | ||
| if options['commit']: | ||
| stripe.SubscriptionSchedule.release(schedule) | ||
| self.new_schedule(subscription, new_price) | ||
| else: | ||
| # In phase 1 | ||
| phases = [ | ||
| { | ||
| 'items': [{'price': schedule.phases[0]['items'][0].price}], | ||
| 'start_date': schedule.phases[0].start_date, | ||
| 'end_date': schedule.phases[0].end_date, | ||
| 'proration_behavior': 'none', | ||
| 'default_tax_rates': [settings.STRIPE_TAX_RATE], | ||
| }, | ||
| { | ||
| 'items': [{'price': schedule.phases[1]['items'][0].price}], | ||
| 'start_date': schedule.phases[1].start_date, | ||
| 'end_date': schedule.phases[1].end_date, | ||
| 'proration_behavior': 'none', | ||
| 'default_tax_rates': [settings.STRIPE_TAX_RATE], | ||
| }, | ||
| { | ||
| 'items': [{'price': new_price}], | ||
| 'iterations': 1, | ||
| 'proration_behavior': 'none', | ||
| 'default_tax_rates': [settings.STRIPE_TAX_RATE], | ||
| }, | ||
| ] | ||
| # Maintain current discount, if any | ||
| if schedule.phases[0].discounts and schedule.phases[0].discounts[0].coupon: | ||
| phases[0]['discounts'] = [{'coupon': schedule.phases[0].discounts[0].coupon}] | ||
| if schedule.phases[1].discounts and schedule.phases[1].discounts[0].coupon: | ||
| phases[1]['discounts'] = [{'coupon': schedule.phases[1].discounts[0].coupon}] | ||
| phases[2]['discounts'] = [{'coupon': schedule.phases[1].discounts[0].coupon}] | ||
| self.stdout.write(f"{sub_info} has two phases, adding third phase to new price") | ||
| if options['commit']: | ||
| stripe.SubscriptionSchedule.modify(schedule.id, phases=phases) | ||
| else: | ||
| self.stdout.write(f"{sub_info} has {len(schedule.phases)} phases, something odd!") | ||
| else: | ||
| if subscription['items'].data[0].price.id != old_price: | ||
| continue | ||
| self.stdout.write(f"{sub_info} has no phase, adding schedule to new price") | ||
| if options['commit']: | ||
| self.new_schedule(subscription, new_price) |
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