From cc0a33ec7d6204e73f65804ff6c0af66b34d1f1e Mon Sep 17 00:00:00 2001
From: mattwr18 <mattwr18@gmail.com>
Date: Wed, 11 Dec 2019 13:26:18 +0100
Subject: [PATCH] Use transaction function in isUniqueFor

---
 backend/src/middleware/sluggifyMiddleware.js | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/backend/src/middleware/sluggifyMiddleware.js b/backend/src/middleware/sluggifyMiddleware.js
index cda3fd335..1cd3c0b9c 100644
--- a/backend/src/middleware/sluggifyMiddleware.js
+++ b/backend/src/middleware/sluggifyMiddleware.js
@@ -4,10 +4,16 @@ const isUniqueFor = (context, type) => {
   return async slug => {
     const session = context.driver.session()
     try {
-      const response = await session.run(`MATCH(p:${type} {slug: $slug }) return p.slug`, {
-        slug,
+      const existingSlug = await session.readTransaction(transaction => {
+        return transaction.run(
+          `
+            MATCH(p:${type} {slug: $slug }) 
+            RETURN p.slug
+          `,
+          { slug },
+        )
       })
-      return response.records.length === 0
+      return existingSlug.records.length === 0
     } finally {
       session.close()
     }