Don't show notification when no lower time range in URL query

Update validTimeRange to make having no lower acceptable

Co-authored-by: Jared Scheib <jared.scheib@gmail.com>
Co-authored-by: Deniz Kusefoglu <denizk@gmail.com>

ui/src/dashboards/utils/time.ts

@@ -60,10 +60,6 @@ export const validAbsoluteTimeRange = (
 }
 
 export const validTimeRange = (timeRange: TimeRange): TimeRange | null => {
-  if (!timeRange.lower) {
-    return null
-  }
-
   let timeRangeOrNull = validRelativeTimeRange(timeRange)
   if (!timeRangeOrNull) {
     timeRangeOrNull = validAbsoluteTimeRange(timeRange)

ui/src/shared/middleware/queryStringConfig.js

@@ -43,11 +43,13 @@ export const queryStringConfig = store => {
 
           timeRange = dashboardTimeRange || defaultTimeRange
 
-          dispatch(
-            notifyAction(
-              notifyInvalidTimeRangeValueInURLQuery(timeRangeFromQueries)
+          if (timeRangeFromQueries.lower || timeRangeFromQueries.upper) {
+            dispatch(
+              notifyAction(
+                notifyInvalidTimeRangeValueInURLQuery(timeRangeFromQueries)
+              )
             )
-          )
+          }
         }
 
         dispatch(setDashTimeV1(+dashboardID, timeRange))