TimeSeries: Add data frame index and field name (#19005)

public/app/core/time_series2.ts

@@ -67,9 +67,21 @@ export function getDataMinMax(data: TimeSeries[]) {
   return { datamin, datamax };
 }
 
+/**
+ * @deprecated: This class should not be used in new panels
+ *
+ * Use DataFrame and helpers instead
+ */
 export default class TimeSeries {
   datapoints: any;
   id: string;
+  // Represents index of original data frame in the quey response
+  dataFrameIndex: number;
+  /**
+   * Name of the field the time series was created from
+   * Used in graph panel to retrieve value from the original data frame
+   */
+  fieldName: string;
   label: string;
   alias: string;
   aliasEscaped: string;
@@ -110,6 +122,8 @@ export default class TimeSeries {
     this.stats = {};
     this.legend = true;
     this.unit = opts.unit;
+    this.fieldName = opts.fieldName;
+    this.dataFrameIndex = opts.dataFrameIndex;
     this.hasMsResolution = this.isMsResolutionNeeded();
   }