chore: initial public commit

db/migrations/old/20250611_release_delete_trigger.sql

@@ -0,0 +1,30 @@
+-- +goose Up
+-- +goose StatementBegin
+
+CREATE OR REPLACE FUNCTION delete_orphan_releases()
+RETURNS TRIGGER AS $$
+BEGIN
+    IF NOT EXISTS (
+        SELECT 1 FROM artist_releases
+        WHERE release_id = OLD.release_id
+    ) THEN
+        DELETE FROM releases WHERE id = OLD.release_id;
+    END IF;
+    RETURN NULL;
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE TRIGGER trg_delete_orphan_releases
+AFTER DELETE ON artist_releases
+FOR EACH ROW
+EXECUTE FUNCTION delete_orphan_releases();
+
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+
+DROP TRIGGER IF EXISTS trg_delete_orphan_releases ON artist_releases;
+DROP FUNCTION IF EXISTS delete_orphan_releases;
+
+-- +goose StatementEnd