bug double subscription

database/migrations/006_subscription_payment_snapshots.sql

@@ -0,0 +1,22 @@
+ALTER TABLE subscription_payments
+  ADD COLUMN IF NOT EXISTS title text,
+  ADD COLUMN IF NOT EXISTS amount double precision;
+
+UPDATE subscription_payments AS payment
+SET
+  title = subscription.title,
+  amount = subscription.amount
+FROM subscriptions AS subscription
+WHERE
+  subscription.id = payment.subscription_id
+  AND (payment.title IS NULL OR payment.amount IS NULL);
+
+ALTER TABLE subscription_payments
+  ALTER COLUMN title SET NOT NULL,
+  ALTER COLUMN amount SET NOT NULL;
+
+ALTER TABLE subscription_payments
+  DROP CONSTRAINT IF EXISTS subscription_payments_amount_positive;
+
+ALTER TABLE subscription_payments
+  ADD CONSTRAINT subscription_payments_amount_positive CHECK (amount > 0);