fix(start_with_last): start_with_last would sometimes throw

TheBrain8791 · Mar 1, 2021 · f5aa2e3 · f5aa2e3
1 parent 7abc750
commit f5aa2e3
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diff --git a/.devcontainer/ui-lovelace.yaml b/.devcontainer/ui-lovelace.yaml
@@ -882,3 +882,24 @@ views:
                   func: first
                   duration: 10min
                   start_with_last: true
+          - type: custom:apexcharts-card
+            graph_span: 1 week
+            span:
+              end: week
+            all_series_config:
+              type: column
+              extend_to_end: false
+              group_by:
+                fill: 'null'
+            series:
+              - entity: sensor.random0_100
+                name: last
+                group_by:
+                  func: last
+                  duration: 10min
+              - entity: sensor.random0_100
+                name: first
+                group_by:
+                  func: first
+                  duration: 10min
+                  start_with_last: true
diff --git a/src/graphEntry.ts b/src/graphEntry.ts
@@ -394,7 +394,7 @@ export default class GraphEntry {
       }
       if (this._config.group_by.start_with_last) {
         if (index > 0) {
-          if (bucket.data[0][0] !== bucket.timestamp) {
+          if (bucket.data.length === 0 || bucket.data[0][0] !== bucket.timestamp) {
             const prevBucketData = buckets[index - 1].data;
             bucket.data.unshift([bucket.timestamp, prevBucketData[prevBucketData.length - 1][1]]);
           }