From 37d3577603262591b479756ec2e1b22f0d511890 Mon Sep 17 00:00:00 2001
From: Uwe Steinmann <steinm@debian.org>
Date: Sun, 31 Jan 2021 13:48:25 +0100
Subject: [PATCH] show difference in number of documents on chart page

---
 CHANGELOG                        |  1 +
 views/bootstrap/class.Charts.php | 23 ++++++++++++++++++++---
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG b/CHANGELOG
index 7832181d9..77929f9a9 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -10,6 +10,7 @@
   mismatch
 - overhaul notifications, type of receiver is now passed to notification
   service which allows a more fine grained filtering
+- show difference in number of documents on chart page
 
 --------------------------------------------------------------------------------
                      Changes in version 5.1.21
diff --git a/views/bootstrap/class.Charts.php b/views/bootstrap/class.Charts.php
index de8c3be69..afe106741 100644
--- a/views/bootstrap/class.Charts.php
+++ b/views/bootstrap/class.Charts.php
@@ -227,7 +227,11 @@ $(document).ready( function() {
 <?php
 		$this->contentContainerEnd();
 		echo "<table class=\"table table-condensed table-hover\">";
-		echo "<tr><th>".getMLText('chart_'.$type.'_title')."</th><th>".getMLText('total')."</th></tr>";
+		echo "<tr>";
+		echo "<th>".getMLText('chart_'.$type.'_title')."</th><th>".getMLText('total')."</th>";
+		if(in_array($type, array('docspermonth', 'docsaccumulated')))
+			echo "<th></th>";
+		echo "</tr>";
 		$total = 0;
 		switch($type) {
 		case 'docspermonth':
@@ -235,15 +239,28 @@ $(document).ready( function() {
 		case 'docspermimetype':
 		case 'docspercategory':
 		case 'docsperstatus':
+			$oldtotal = 0;
 			foreach($data as $item) {
-				echo "<tr><td>".htmlspecialchars($item['key'])."</td><td>".$item['total']."</td></tr>";
+				echo "<tr>";
+				echo "<td>".htmlspecialchars($item['key'])."</td>";
+				echo "<td>".$item['total']."</td>";
+				if(in_array($type, array('docspermonth')))
+					echo "<td>".sprintf('%+d', $item['total']-$oldtotal)."</td>";
+				echo "</tr>";
+				$oldtotal = $item['total'];
 				$total += $item['total'];
 			}
 			echo "<tr><th></th><th>".$total."<th></tr>";
 			break;
 		case 'docsaccumulated':
+			$oldtotal = 0;
 			foreach($data as $item) {
-				echo "<tr><td>".date('Y-m-d', $item['key']/1000)."</td><td>".$item['total']."</td></tr>";
+				echo "<tr>";
+				echo "<td>".getReadableDate($item['key']/1000)."</td>";
+				echo "<td>".$item['total']."</td>";
+				echo "<td>".sprintf('%+d', $item['total']-$oldtotal)."</td>";
+				echo "</tr>";
+				$oldtotal = $item['total'];
 				$total += $item['total'];
 			}
 			break;