From 7eb577b8cc929a9016cc9fe94d457e34a4a6af12 Mon Sep 17 00:00:00 2001
From: jsteemann <jan@arangodb.com>
Date: Thu, 11 Oct 2018 11:54:29 +0200
Subject: [PATCH] handle missing frontend collection

---
 js/apps/system/_admin/aardvark/APP/aardvark.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/js/apps/system/_admin/aardvark/APP/aardvark.js b/js/apps/system/_admin/aardvark/APP/aardvark.js
index 88c8bf17a9..1a9ace048b 100644
--- a/js/apps/system/_admin/aardvark/APP/aardvark.js
+++ b/js/apps/system/_admin/aardvark/APP/aardvark.js
@@ -363,7 +363,17 @@ authRouter.post('/graph-examples/create/:name', function (req, res) {
 `);
 
 authRouter.post('/job', function (req, res) {
-  db._frontend.save(Object.assign(req.body, {model: 'job'}));
+  let frontend = db._collection('_frontend');
+  if (!frontend) {
+    frontend = db._create('_frontend', { 
+      isSystem: true,
+      waitForSync: false,
+      journalSize: 1024 * 1024, 
+      replicationFactor: internal.DEFAULT_REPLICATION_FACTOR_SYSTEM,
+      distributeShardsLike: '_graphs' 
+    });
+  }
+  frontend.save(Object.assign(req.body, {model: 'job'}));
   res.json(true);
 })
 .body(joi.object({