From 946156c257b1c50df2651f9f6e294f5cc2c4a2a4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jakub=20Soko=C5=82owski?= <jakub@status.im>
Date: Thu, 13 Dec 2018 12:50:47 +0100
Subject: [PATCH] throw error if there are no builds when rendering
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Signed-off-by: Jakub Sokołowski <jakub@status.im>
---
 src/app.js      | 2 ++
 src/comments.js | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/src/app.js b/src/app.js
index 02c644f..bebb32f 100644
--- a/src/app.js
+++ b/src/app.js
@@ -29,7 +29,9 @@ const App = (ghc) => {
       body: ghc.db.schema,
     },
     handler: async (ctx) => {
+      /* save the build */
       await ghc.db.addBuild(ctx.params.pr, ctx.request.body)
+      /* post or update the comment */
       await ghc.update(ctx.params.pr)
       ctx.status = 201
       ctx.body = {status:'ok'}
diff --git a/src/comments.js b/src/comments.js
index 3e7e160..a15f5d0 100644
--- a/src/comments.js
+++ b/src/comments.js
@@ -20,6 +20,9 @@ class Comments {
 
   async renderComment (pr) {
     const builds = await this.db.getBuilds(pr)
+    if (builds.length == 0) {
+      throw Error('No builds exist for this PR')
+    }
     return this.nj.renderString(this.template, {builds})
   }