bug double subscription

database/init.sql

@@ -57,6 +57,8 @@ CREATE TABLE subscription_payments (
   user_id uuid NOT NULL REFERENCES users(id) ON DELETE CASCADE,
   subscription_id uuid NOT NULL REFERENCES subscriptions(id) ON DELETE CASCADE,
   renewal_date text NOT NULL,
+  title text NOT NULL,
+  amount double precision NOT NULL CHECK (amount > 0),
   status text NOT NULL,
   payment_date text,
   linked_payment_id uuid,

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);