added item route details (#6)

Reviewed-on: #6
Co-authored-by: Joseph Nelson <joseph.nelson4456@gmail.com>
Co-committed-by: Joseph Nelson <joseph.nelson4456@gmail.com>

src/migrations/008_add-fk-relationship-items-with-set-id.js

@@ -0,0 +1,16 @@
+export const up = (pgm) => {
+	pgm.sql(`
+    ALTER TABLE "items" 
+    ADD CONSTRAINT "set_id" 
+    FOREIGN KEY ("set_id") 
+    REFERENCES "sets" ("id") 
+    ON DELETE CASCADE;
+  `)
+}
+
+export const down = (pgm) => {
+	pgm.sql(`
+    ALTER TABLE "items" 
+    DROP CONSTRAINT "fk_name";
+  `)
+}