commiting missing utils file

src/app/portfolio/[slug]/utils.ts

@@ -0,0 +1,21 @@
+import { eq } from "drizzle-orm";
+import { db } from "@/app/db/db";
+import { portfolio } from "@/app/db/schema/portfolio";
+import type { Portfolio } from "@/app/db/schema/portfolio";
+
+export async function getPortfolio(portfolioId: number): Promise<Portfolio> {
+  const data = await db
+    .select()
+    .from(portfolio)
+    .where(eq(portfolio.id, portfolioId));
+
+  if (data.length === 0) {
+    throw new Error("Portfolio not found");
+  }
+
+  if (data.length > 1) {
+    throw new Error("More than one portfolio found");
+  }
+
+  return data[0];
+}