Add Expand Group option to web view

www/database.php

@@ -173,6 +173,20 @@ function LoadMonth($user, $month, $year)
     return $db->query($req);
 }
 
+function MetaPositiveAmount($id)
+{
+    global $db;
+
+    $req = "SELECT SUM(amount) as amount FROM operation WHERE amount > 0 AND parent='$id'";
+
+    $result = $db->query($req);
+
+    if ($row = $result->fetchArray())
+        return $row["amount"];
+    else
+        return 0.0;
+}
+
 function GetAllOperations($user, &$last_year, &$last_month)
 {
     $res;