🐛 Fix update username request

app/api/user/route.ts

@@ -107,29 +107,12 @@ export const PUT = async (req: NextRequest) => {
 		try {
 			const pool = getDBConnexion();
 
-			const { rowCount } = await pool.query(
-				`SELECT COUNT(*) FROM "user" WHERE "username"=$1 LIMIT 1;`,
-				[username]
-			);
-
-			if (rowCount > 0) {
-				return NextResponse.json(
-					{
-						error: true,
-						message: 'Username already used',
-					},
-					{
-						status: 409,
-					}
-				);
-			}
-
-			const { rows } = await pool.query(
+			const { rows: foundUsers } = await pool.query(
 				`SELECT * FROM "user" WHERE "id"=$1 LIMIT 1;`,
 				[userID]
 			);
 
-			if (rows.length != 1) {
+			if (foundUsers.length != 1) {
 				return NextResponse.json(
 					{
 						error: true,
@@ -141,6 +124,23 @@ export const PUT = async (req: NextRequest) => {
 				);
 			}
 
+			const { rows: rowCount } = await pool.query(
+				`SELECT COUNT(*) FROM "user" WHERE "username"=$1 LIMIT 1;`,
+				[username]
+			);
+
+			if (rowCount[0].count > 0) {
+				return NextResponse.json(
+					{
+						error: true,
+						message: 'Username already used',
+					},
+					{
+						status: 409,
+					}
+				);
+			}
+
 			await pool.query(`UPDATE "user" SET "username"=$1 WHERE "id"=$2;`, [
 				username,
 				userID,