Refactored archive data querying code. Removed tree-like data structure from Piwik_Archive, added memory optimizations for archiving (not storing archive processing instances), added optimization for querying data indexed by site + date, added ability to select multiple blobs/metrics at once (from different plugins), added optimization to Piwik_ArchiveProcessing_Period where numerics/records are selected all at once instead of one at a time.

Also added data access layer object for archive querying code, allowed anonymous function objects to be used as DataTable filters, and removed 'timestamp' DataTable metadata.

1 files changed, 1 insertions, 0 deletions

diff --git a/plugins/VisitTime/API.php b/plugins/VisitTime/API.php
index 3da0646fb7..973a8d3dd8 100644
--- a/plugins/VisitTime/API.php
+++ b/plugins/VisitTime/API.php
@@ -85,6 +85,7 @@ class Piwik_VisitTime_API
         $dataTable = $archive->getDataTableFromNumeric($metrics)->mergeChildren();
 
         // if there's no data for this report, don't bother w/ anything else
+        // TODO: with changes to getDataTableFromNumeric, this code would have to check if every row has 0 column values. is it really necessary? (assuming no for now)
         if ($dataTable->getRowsCount() == 0) {
             return $dataTable;
         }