fix: error placeholder for explore tree (#20817)

openmetadata-ui/src/main/resources/ui/playwright/utils/advancedSearch.ts

@@ -260,16 +260,7 @@ export const fillRule = async (
       await dropdownInput.fill(searchData);
 
       if (aggregateRes) {
-        const res = await aggregateRes;
-        if (field.id === 'Column') {
-          // check if aggregateRes has queryParam called 'sourceField'
-          const urlParams = new URLSearchParams(res.request().url());
-          const sourceField = urlParams.get('sourceFields');
-          if (sourceField) {
-            // check value of sourceField
-            expect(sourceField).toBe('columns.name');
-          }
-        }
+        await aggregateRes;
       }
 
       await page

openmetadata-ui/src/main/resources/ui/src/components/ExploreV1/ExploreV1.component.tsx

@@ -34,7 +34,7 @@ import {
   SUPPORTED_EMPTY_FILTER_FIELDS,
   TAG_FQN_KEY,
 } from '../../constants/explore.constants';
-import { SORT_ORDER } from '../../enums/common.enum';
+import { SIZE, SORT_ORDER } from '../../enums/common.enum';
 import { useApplicationStore } from '../../hooks/useApplicationStore';
 import { getDropDownItems } from '../../utils/AdvancedSearchUtils';
 import { Transi18next } from '../../utils/CommonUtils';
@@ -45,6 +45,7 @@ import {
 } from '../../utils/ExploreUtils';
 import { getApplicationDetailsPath } from '../../utils/RouterUtils';
 import searchClassBase from '../../utils/SearchClassBase';
+import FilterErrorPlaceHolder from '../common/ErrorWithPlaceholder/FilterErrorPlaceHolder';
 import Loader from '../common/Loader/Loader';
 import ResizableLeftPanels from '../common/ResizablePanels/ResizableLeftPanels';
 import {
@@ -56,6 +57,7 @@ import ExploreTree from '../Explore/ExploreTree/ExploreTree';
 import SearchedData from '../SearchedData/SearchedData';
 import { SearchedDataProps } from '../SearchedData/SearchedData.interface';
 import './exploreV1.less';
+
 const IndexNotFoundBanner = () => {
   const { theme } = useApplicationStore();
   const { t } = useTranslation();
@@ -206,6 +208,38 @@ const ExploreV1: React.FC<ExploreProps> = ({
     });
   };
 
+  const exploreLeftPanel = useMemo(() => {
+    if (tabItems.length === 0) {
+      return (
+        <FilterErrorPlaceHolder
+          className="h-min-80 d-flex flex-col justify-center border-none"
+          size={SIZE.MEDIUM}
+        />
+      );
+    }
+
+    if (searchQueryParam) {
+      return (
+        <Menu
+          className="custom-menu"
+          data-testid="explore-left-panel"
+          items={tabItems}
+          mode="inline"
+          rootClassName="left-container"
+          selectedKeys={[activeTabKey]}
+          onClick={(info) => {
+            if (info && info.key !== activeTabKey) {
+              onChangeSearchIndex(info.key as ExploreSearchIndex);
+              setShowSummaryPanel(false);
+            }
+          }}
+        />
+      );
+    }
+
+    return <ExploreTree onFieldValueSelect={handleQuickFiltersChange} />;
+  }, [searchQueryParam, tabItems]);
+
   useEffect(() => {
     const escapeKeyHandler = (e: KeyboardEvent) => {
       if (e.key === 'Escape') {
@@ -265,28 +299,7 @@ const ExploreV1: React.FC<ExploreProps> = ({
           flex: 0.13,
           minWidth: 280,
           title: t('label.data-asset-plural'),
-          children: (
-            <div className="p-x-sm">
-              {searchQueryParam ? (
-                <Menu
-                  className="custom-menu"
-                  data-testid="explore-left-panel"
-                  items={tabItems}
-                  mode="inline"
-                  rootClassName="left-container"
-                  selectedKeys={[activeTabKey]}
-                  onClick={(info) => {
-                    if (info && info.key !== activeTabKey) {
-                      onChangeSearchIndex(info.key as ExploreSearchIndex);
-                      setShowSummaryPanel(false);
-                    }
-                  }}
-                />
-              ) : (
-                <ExploreTree onFieldValueSelect={handleQuickFiltersChange} />
-              )}
-            </div>
-          ),
+          children: <div className="p-x-sm">{exploreLeftPanel}</div>,
         }}
         secondPanel={{
           className: 'content-height-with-resizable-panel',

openmetadata-ui/src/main/resources/ui/src/utils/AdvancedSearchClassBase.ts

@@ -745,7 +745,6 @@ class AdvancedSearchClassBase {
               asyncFetch: this.autocomplete({
                 searchIndex: entitySearchIndex,
                 entityField: EntityFields.COLUMN,
-                isCaseInsensitive: true,
               }),
               useAsyncSearch: true,
             },