From 20121b79c51f17fbf9582bc754c0b9bd95dc8021 Mon Sep 17 00:00:00 2001
From: Dave Conway-Jones <conway@DCJMac.lan>
Date: Fri, 16 Oct 2015 20:42:21 +0100
Subject: [PATCH] Let CSV node handle null columns in input array. array-> csv

---
 nodes/core/parsers/70-CSV.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/nodes/core/parsers/70-CSV.js b/nodes/core/parsers/70-CSV.js
index a4ac56406..7d9e2b696 100644
--- a/nodes/core/parsers/70-CSV.js
+++ b/nodes/core/parsers/70-CSV.js
@@ -58,6 +58,7 @@ module.exports = function(RED) {
                             if ((Array.isArray(msg.payload[s])) || (typeof msg.payload[s] !== "object")) {
                                 if (typeof msg.payload[s] !== "object") { msg.payload = [ msg.payload ]; }
                                 for (var t = 0; t < msg.payload[s].length; t++) {
+                                    if (!msg.payload[s][t]) { msg.payload[s][t] = ""; }
                                     if (msg.payload[s][t].toString().indexOf(node.quo) !== -1) { // add double quotes if any quotes
                                         msg.payload[s][t] = msg.payload[s][t].toString().replace(/"/g, '""');
                                         msg.payload[s][t] = node.quo + msg.payload[s][t].toString() + node.quo;