[GitHub] [superset] ktmud commented on a change in pull request #16469: fix: sql lab refetch button

[GitBox <gi...@apache.org>]

ktmud commented on a change in pull request #16469:
URL: https://github.com/apache/superset/pull/16469#discussion_r698840052



##########
File path: superset-frontend/src/SqlLab/reducers/sqlLab.js
##########
@@ -520,7 +520,20 @@ export default function sqlLabReducer(state = {}, action) {
           if (changedQuery.changedOn > queriesLastUpdate) {
             queriesLastUpdate = changedQuery.changedOn;
           }
-          newQueries[id] = { ...state.queries[id], ...changedQuery };
+          const prevState = state.queries[id]?.state;
+          const currentState = changedQuery.state;
+          newQueries[id] = {
+            ...state.queries[id],
+            ...changedQuery,
+            // race condition:
+            // because of async behavior, sql lab may still poll a couple of seconds
+            // when it started fetching or finished rendering results
+            state:
+              currentState === 'success' &&
+              ['fetching', 'success'].includes(prevState)
+                ? prevState
+                : currentState,

Review comment:
       Could this be simplified to `state: currentState == 'fetching' && prevState === 'success' ? 'success' : currentState`?




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