fix(func): Filter null values in diff

RomRider · Jan 31, 2021 · cfe736c · cfe736c
1 parent f360083
commit cfe736c
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Showing 2 changed files with 12 additions and 2 deletions.
diff --git a/.devcontainer/ui-lovelace.yaml b/.devcontainer/ui-lovelace.yaml
@@ -134,6 +134,15 @@ views:
                 group_by:
                   duration: 10min
                   func: first
+              - entity: sensor.random0_100
+                curve: smooth
+                name: DIFF
+                type: line
+                show:
+                  as_duration: year
+                group_by:
+                  duration: 10min
+                  func: diff
 
           - type: custom:apexcharts-card
             graph_span: 4h

diff --git a/src/graphEntry.ts b/src/graphEntry.ts
@@ -379,8 +379,9 @@ export default class GraphEntry {
   }
 
   private _diff(items: EntityCachePoints): number | null {
-    const first = this._first(items);
-    const last = this._last(items);
+    const noNulls = this._filterNulls(items);
+    const first = this._first(noNulls);
+    const last = this._last(noNulls);
     if (first === null || last === null) {
       return null;
     }