Extend transaction usage

src/function/parent/create-family.ts

@@ -1,6 +1,6 @@
 /*
  * server component for the TimeLimit App
- * Copyright (C) 2019 Jonas Lochmann
+ * Copyright (C) 2019 - 2020 Jonas Lochmann
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU Affero General Public License as
@@ -32,11 +32,12 @@ export const createFamily = async ({ database, mailAuthToken, firstParentDevice,
   timeZone: string,
   parentName: string,
   deviceName: string
+  // no transaction here because this is directly called from an API endpoint
 }) => {
-  const now = Date.now().toString(10)
-  const mail = await requireMailByAuthToken({ database, mailAuthToken })
-
   return database.transaction(async (transaction) => {
+    const now = Date.now().toString(10)
+    const mail = await requireMailByAuthToken({ database, mailAuthToken, transaction })
+
     // ensure that no family was created for this mail yet
     const exisitngUserEntry = await database.user.findOne({
       where: {