show empty list when no ids (#689)

Author: jdkent

compose/neurosynth-frontend/src/hooks/metaAnalyses/useGetMetaAnalysesByIds.tsx

@@ -2,20 +2,29 @@ import { useQuery } from 'react-query';
 import API from 'utils/api';
 
 const useGetMetaAnalysesByIds = (metaAnalysisIds: string[] | undefined) => {
-    return useQuery(
+    const shouldFetch = metaAnalysisIds && metaAnalysisIds.length > 0;
+
+    const result = useQuery(
         ['meta-analyses', metaAnalysisIds],
-        () =>
-            API.NeurosynthServices.MetaAnalysisService.metaAnalysesGet(
-                false,
-                metaAnalysisIds || []
-            ),
+        () => API.NeurosynthServices.MetaAnalysisService.metaAnalysesGet(false, metaAnalysisIds),
         {
             select: (axiosResponse) => {
                 const res = axiosResponse.data.results || [];
                 return res;
             },
+            enabled: shouldFetch,
         }
     );
+
+    if (!shouldFetch) {
+        return {
+            data: [],
+            isLoading: false,
+            isError: false,
+        };
+    }
+
+    return result;
 };
 
 export default useGetMetaAnalysesByIds;