From f5c15c2289211605199965ebb45681fe90acc81f Mon Sep 17 00:00:00 2001
From: Alexander Polynomdivision <digitalmail555@googlemail.com>
Date: Tue, 9 Oct 2018 12:55:56 +0200
Subject: [PATCH] fix: We need to check if the class ID is correct

---
 backend/src/main.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/backend/src/main.ts b/backend/src/main.ts
index cd87e63..be1538a 100644
--- a/backend/src/main.ts
+++ b/backend/src/main.ts
@@ -120,9 +120,9 @@ const password = encodeURIComponent(env["LATEINICUS_USER_PW"]);
         const { username, password, classId } = req.body;
 
         // Check if the registration is open for the class Id
-        // NOTE: Thiis to prevent people from spamming the database
+        // NOTE: This to prevent people from spamming the database
         const classes = env["LATEINICUS_CLASSES"].split(",");
-        if (classes.indexOf(classId) !== -1) {
+        if (classes.indexOf(classId) === -1) {
             res.send({
                 error: "403",
                 data: {