bmc_hub/migrations/132_subscription_cancellation.sql

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-- Migration 132: Add cancellation rules to subscriptions
-- Adds fields for notice period, cancellation date, and termination order tracking
ALTER TABLE sag_subscriptions
ADD COLUMN IF NOT EXISTS notice_period_days INTEGER DEFAULT 30 CHECK (notice_period_days >= 0),
ADD COLUMN IF NOT EXISTS cancelled_at TIMESTAMP,
ADD COLUMN IF NOT EXISTS cancelled_by_user_id INTEGER REFERENCES users(user_id),
ADD COLUMN IF NOT EXISTS cancellation_sag_id INTEGER REFERENCES sag_sager(id),
ADD COLUMN IF NOT EXISTS cancellation_reason TEXT;
CREATE INDEX IF NOT EXISTS idx_sag_subscriptions_cancelled_at ON sag_subscriptions(cancelled_at);
COMMENT ON COLUMN sag_subscriptions.notice_period_days IS 'Number of days notice required for cancellation (default 30)';
COMMENT ON COLUMN sag_subscriptions.cancelled_at IS 'When the cancellation was requested';
COMMENT ON COLUMN sag_subscriptions.cancelled_by_user_id IS 'User who requested cancellation';
COMMENT ON COLUMN sag_subscriptions.cancellation_sag_id IS 'Case created for the cancellation process';
COMMENT ON COLUMN sag_subscriptions.cancellation_reason IS 'Reason for cancellation';