Prevent some possible exceptions (#19938)

4 files changed, 4 insertions, 4 deletions

diff --git a/plugins/Ecommerce/Controller.php b/plugins/Ecommerce/Controller.php
index dcc600e1b2..7e27aed99d 100644
--- a/plugins/Ecommerce/Controller.php
+++ b/plugins/Ecommerce/Controller.php
@@ -148,7 +148,7 @@ class Controller extends \Piwik\Plugins\Goals\Controller
 
             if (array_key_exists($columnName, $metrics) && array_key_exists($columnName, $return)) {
 
-                $pastValue = $previousDataRow->getColumn($columnName);
+                $pastValue = $previousDataRow ? $previousDataRow->getColumn($columnName) : 0;
 
                 if (in_array($columnName, ['revenue', 'avg_order_revenue'])) {
                     $numberFormatter = NumberFormatter::getInstance();
diff --git a/plugins/Goals/Reports/Get.php b/plugins/Goals/Reports/Get.php
index 247e4c1de0..9e73143cea 100644
--- a/plugins/Goals/Reports/Get.php
+++ b/plugins/Goals/Reports/Get.php
@@ -194,7 +194,7 @@ class Get extends Base
 
                     $value = reset($columns);
                     $columnName = key($columns);
-                    $pastValue = $previousDataRow->getColumn($columnName);
+                    $pastValue = $previousDataRow ? $previousDataRow->getColumn($columnName) : 0;
 
                     if (!is_numeric($value)) {
                         return;
diff --git a/plugins/Referrers/Reports/Get.php b/plugins/Referrers/Reports/Get.php
index 0078102a21..52a5106481 100644
--- a/plugins/Referrers/Reports/Get.php
+++ b/plugins/Referrers/Reports/Get.php
@@ -90,7 +90,7 @@ class Get extends Base
                         return;
                     }
 
-                    $pastValue = $previousDataRow->getColumn($columnName);
+                    $pastValue = $previousDataRow ? $previousDataRow->getColumn($columnName) : 0;
 
                     $currentValueFormatted = NumberFormatter::getInstance()->format($value);
                     $pastValueFormatted    = NumberFormatter::getInstance()->format($pastValue);
diff --git a/plugins/VisitsSummary/Reports/Get.php b/plugins/VisitsSummary/Reports/Get.php
index 7b482cac12..f9eded77b3 100644
--- a/plugins/VisitsSummary/Reports/Get.php
+++ b/plugins/VisitsSummary/Reports/Get.php
@@ -132,7 +132,7 @@ class Get extends \Piwik\Plugin\Report
                 $view->config->compute_evolution = function ($columns, $metrics) use ($currentPrettyDate, $lastPrettyDate, $previousDataRow) {
                     $value = reset($columns);
                     $columnName = key($columns);
-                    $pastValue = $previousDataRow->getColumn($columnName);
+                    $pastValue = $previousDataRow ? $previousDataRow->getColumn($columnName) : 0;
 
                     // Format
                     $formatter = new MetricFormatter();