Refs #4200, make DataTable:: private & add public methods necessary, tweaking some filter docs, and remove AddConstantMetadata filter.

1 files changed, 1 insertions, 1 deletions

diff --git a/plugins/Actions/Archiver.php b/plugins/Actions/Archiver.php
index e9e298ceb9..8335553c1e 100644
--- a/plugins/Actions/Archiver.php
+++ b/plugins/Actions/Archiver.php
@@ -166,7 +166,7 @@ class Archiver extends \Piwik\Plugin\Archiver
                 || $type == Action::TYPE_ACTION_NAME
             ) {
                 // for page urls and page titles, performance metrics exist and have to be aggregated correctly
-                $dataTable->metadata[DataTable::COLUMN_AGGREGATION_OPS_METADATA_NAME] = self::$actionColumnAggregationOperations;
+                $dataTable->setMetadata(DataTable::COLUMN_AGGREGATION_OPS_METADATA_NAME, self::$actionColumnAggregationOperations);
             }
 
             $this->actionsTablesByType[$type] = $dataTable;