feat: Reuse Dashboard redux data in Explore

superset-frontend/packages/superset-ui-core/src/utils/isDefined.ts

@@ -17,6 +17,6 @@
  * under the License.
  */
 
-export default function isDefined(x: unknown) {
+export default function isDefined<T>(x: T): x is NonNullable<T> {
   return x !== null && x !== undefined;
 }

superset-frontend/src/dashboard/actions/hydrate.js

@@ -150,9 +150,13 @@ export const hydrateDashboard =
         datasource: slice.form_data.datasource,
         description: slice.description,
         description_markeddown: slice.description_markeddown,
-        owners: slice.owners,
+        owners: slice.owners.map(owner => owner.id),
         modified: slice.modified,
         changed_on: new Date(slice.changed_on).getTime(),
+        is_managed_externally: slice.is_managed_externally,
+        query_context: slice.query_context,
+        certified_by: slice.certified_by,
+        certification_details: slice.certification_details,
       };
 
       sliceIds.add(key);

superset-frontend/src/dashboard/components/gridComponents/Chart.jsx

@@ -302,7 +302,7 @@ class Chart extends React.Component {
       ) {
         window.open(url, '_blank', 'noreferrer');
       } else {
-        this.props.history.push(url);
+        this.props.history.push(url, { dashboardId: this.props.dashboardId });
       }
     } catch (error) {
       logging.error(error);

superset-frontend/src/explore/ExplorePage.tsx

@@ -16,17 +16,24 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-import React, { useEffect, useState } from 'react';
-import { useDispatch } from 'react-redux';
-import { makeApi, t } from '@superset-ui/core';
+import React, { useCallback, useEffect, useState } from 'react';
+import { useDispatch, useSelector } from 'react-redux';
+import { isDefined, makeApi, SupersetClient, t } from '@superset-ui/core';
+import { useLocation } from 'react-router-dom';
 import Loading from 'src/components/Loading';
+import pick from 'lodash/pick';
+import { Dataset } from '@superset-ui/chart-controls';
 import { getParsedExploreURLParams } from './exploreUtils/getParsedExploreURLParams';
 import { hydrateExplore } from './actions/hydrateExplore';
 import ExploreViewContainer from './components/ExploreViewContainer';
 import { ExploreResponsePayload } from './types';
 import { fallbackExploreInitialData } from './fixtures';
 import { addDangerToast } from '../components/MessageToasts/actions';
 import { isNullish } from '../utils/common';
+import { getUrlParam } from '../utils/urlUtils';
+import { URL_PARAMS } from '../constants';
+import { RootState } from '../dashboard/types';
+import { Slice } from '../types/Chart';
 
 const loadErrorMessage = t('Failed to load chart data.');
 
@@ -38,12 +45,58 @@ const fetchExploreData = () => {
   })(exploreUrlParams);
 };
 
+const useExploreInitialData = (
+  shouldUseDashboardData: boolean,
+  sliceId: string | null,
+) => {
+  const slice = useSelector<RootState, Slice | null>(({ sliceEntities }) =>
+    isDefined(sliceId) ? sliceEntities?.slices?.[sliceId] : null,
+  );
+  const formData = slice?.form_data;
+  const { id: datasourceId, type: datasourceType } = useSelector<
+    RootState,
+    { id: number | undefined; type: string | undefined }
+  >(({ datasources }) =>
+    formData?.datasource
+      ? pick(datasources[formData.datasource], ['id', 'type'])
+      : { id: undefined, type: undefined },
+  );
+  return useCallback(() => {
+    if (
+      !shouldUseDashboardData ||
+      !isDefined(slice) ||
+      !isDefined(formData) ||
+      !isDefined(datasourceId) ||
+      !isDefined(datasourceType)
+    ) {
+      return fetchExploreData();
+    }
+    return SupersetClient.get({
+      endpoint: `/datasource/get/${datasourceType}/${datasourceId}/`,
+    }).then(({ json }) => ({
+      result: {
+        slice,
+        form_data: formData,
+        dataset: json as Dataset,
+        message: '',
+      },
+    }));
+    /* eslint-disable react-hooks/exhaustive-deps */
+  }, []);
+};
+
 const ExplorePage = () => {
   const [isLoaded, setIsLoaded] = useState(false);
   const dispatch = useDispatch();
+  const location = useLocation<{ dashboardId?: number }>();
+
+  const getExploreInitialData = useExploreInitialData(
+    isDefined(location.state?.dashboardId),
+    getUrlParam(URL_PARAMS.sliceId),
+  );
 
   useEffect(() => {
-    fetchExploreData()
+    getExploreInitialData()
       .then(({ result }) => {
         if (isNullish(result.dataset?.id) && isNullish(result.dataset?.uid)) {
           dispatch(hydrateExplore(fallbackExploreInitialData));

superset-frontend/src/explore/actions/hydrateExplore.ts

@@ -56,7 +56,7 @@ export const hydrateExplore =
       initialFormData.dashboardId = dashboardId;
     }
     const initialDatasource =
-      datasources?.[initialFormData.datasource] ?? dataset;
+      dataset ?? datasources?.[initialFormData.datasource];
 
     const initialExploreState = {
       form_data: initialFormData,

superset/charts/schemas.py

@@ -121,6 +121,7 @@
 owners_name_description = "Name of an owner of the chart."
 certified_by_description = "Person or group that has certified this chart"
 certification_details_description = "Details of the certification"
+is_managed_externally_description = "If the chart is managed outside externally"
 
 #
 # OpenAPI method specification overrides
@@ -148,6 +149,10 @@
 }
 
 
+class UserSchema(Schema):
+    id = fields.Int()
+
+
 class ChartEntityResponseSchema(Schema):
     """
     Schema for a chart object
@@ -165,6 +170,11 @@ class ChartEntityResponseSchema(Schema):
     slice_url = fields.String(description=slice_url_description)
     certified_by = fields.String(description=certified_by_description)
     certification_details = fields.String(description=certification_details_description)
+    is_managed_externally = fields.Boolean(
+        description=is_managed_externally_description
+    )
+    owners = fields.List(fields.Nested(UserSchema))
+    query_context = fields.String(description=query_context_description)
 
 
 class ChartPostSchema(Schema):