Add safety checks

ntop · Jan 27, 2025 · ebe9018 · ebe9018
1 parent 94916a3
commit ebe9018
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/scripts/lua/modules/graph_utils.lua b/scripts/lua/modules/graph_utils.lua
@@ -705,11 +705,11 @@ function graph_utils.merge_pie_data(aggregated_data, data, max_values)
    -- Note: aggregated_data may be nil
    local items = {}
    if aggregated_data then
-      for _, l in ipairs(aggregated_data.labels) do
+      for _, l in ipairs(aggregated_data.labels or {}) do
          items[l] = aggregated_data.series[_]
       end
    end
-   for _, l in ipairs(data.labels) do
+   for _, l in ipairs(data.labels or {}) do
       if items[l] then
          items[l] = items[l] + data.series[_]
       else