From f1a39bdc6bbb2182a8a048d1110ef4acd74e726a Mon Sep 17 00:00:00 2001
From: Matt Huntington <matt.huntington@gmail.com>
Date: Fri, 25 Nov 2016 03:47:32 +0100
Subject: [PATCH] =?UTF-8?q?when=20changing=20author,=20remove=20article=20?=
 =?UTF-8?q?from=20previous=20author=E2=80=99s=20article=20array?=
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---
 controllers/articles.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/controllers/articles.js b/controllers/articles.js
index efd48ee..54bde25 100644
--- a/controllers/articles.js
+++ b/controllers/articles.js
@@ -56,6 +56,10 @@ router.get('/:id/edit', function(req, res){
 });
 
 router.put('/:id', function(req, res){
+	Author.findOne({'articles._id':req.params.id}, function(err, previousAuthor){
+		previousAuthor.articles.id(req.params.id).remove();
+		previousAuthor.save();
+	});
 	Author.findById(req.body.authorId, function(err, foundAuthor){
 		Article.findByIdAndUpdate(req.params.id, req.body, {new:true}, function(err, updatedArticle){
 			foundAuthor.articles.push(updatedArticle);