Add filterQuery method to datasource (#1732)

Co-authored-by: Andrew Hackmann <5140848+bossinc@users.noreply.github.com>

Author: karl-power

src/data/CHDatasource.test.ts

@@ -715,15 +715,28 @@ describe('ClickHouseDatasource', () => {
     });
   });
 
+  describe('filterQuery', () => {
+    it('returns true when hide is not set', () => {
+      expect(mockDatasource.filterQuery({ refId: '1' } as CHQuery)).toBe(true);
+    });
+
+    it('returns true when hide is false', () => {
+      expect(mockDatasource.filterQuery({ refId: '1', hide: false } as CHQuery)).toBe(true);
+    });
+
+    it('returns false when hide is true', () => {
+      expect(mockDatasource.filterQuery({ refId: '1', hide: true } as CHQuery)).toBe(false);
+    });
+  });
+
   describe('query', () => {
-    it('filters out hidden queries', async () => {
+    it('attaches timezone metadata to targets', async () => {
       const instance = cloneDeep(mockDatasource);
-      // Datasource inherits from DataSourceWithBackend
       const spy = jest
         .spyOn(DataSourceWithBackend.prototype, 'query')
         .mockImplementation((_request) => of({ data: [toDataFrame([])] }));
       instance.query({
-        targets: [{ refId: '1' }, { refId: '2', hide: false }, { refId: '3', hide: true }] as DataQuery[],
+        targets: [{ refId: '1' }, { refId: '2', hide: false }] as DataQuery[],
         timezone: 'UTC',
       } as any);
 

src/data/CHDatasource.ts

@@ -809,10 +809,12 @@ export class Datasource
     return localTimezoneInfo?.ianaName;
   }
 
+  filterQuery(query: CHQuery): boolean {
+    return !query.hide;
+  }
+
   query(request: DataQueryRequest<CHQuery>): Observable<DataQueryResponse> {
     const targets = request.targets
-      // filters out queries disabled in UI
-      .filter((t) => t.hide !== true)
       // attach timezone information
       .map((t) => {
         return {