fix: can't open the relation field in the linked database (#7441)

frontend/appflowy_flutter/lib/plugins/database/widgets/cell/desktop_grid/desktop_grid_relation_cell.dart

@@ -1,8 +1,9 @@
 import 'package:appflowy/generated/locale_keys.g.dart';
-import 'package:appflowy/plugins/database/grid/presentation/layout/sizes.dart';
-import 'package:appflowy/plugins/database/widgets/row/cells/cell_container.dart';
-import 'package:appflowy/plugins/database/widgets/cell_editor/relation_cell_editor.dart';
 import 'package:appflowy/plugins/database/application/cell/bloc/relation_cell_bloc.dart';
+import 'package:appflowy/plugins/database/grid/presentation/layout/sizes.dart';
+import 'package:appflowy/plugins/database/widgets/cell_editor/relation_cell_editor.dart';
+import 'package:appflowy/plugins/database/widgets/row/cells/cell_container.dart';
+import 'package:appflowy/workspace/application/user/user_workspace_bloc.dart';
 import 'package:appflowy_backend/protobuf/flowy-database2/protobuf.dart';
 import 'package:easy_localization/easy_localization.dart';
 import 'package:flowy_infra_ui/flowy_infra_ui.dart';
@@ -20,6 +21,7 @@ class DesktopGridRelationCellSkin extends IEditableRelationCellSkin {
     RelationCellState state,
     PopoverController popoverController,
   ) {
+    final userWorkspaceBloc = context.read<UserWorkspaceBloc>();
     return AppFlowyPopover(
       controller: popoverController,
       direction: PopoverDirection.bottomWithLeftAligned,
@@ -27,8 +29,11 @@ class DesktopGridRelationCellSkin extends IEditableRelationCellSkin {
       margin: EdgeInsets.zero,
       onClose: () => cellContainerNotifier.isFocus = false,
       popupBuilder: (context) {
-        return BlocProvider.value(
+        return MultiBlocProvider(
-          value: bloc,
+          providers: [
+            BlocProvider.value(value: userWorkspaceBloc),
+            BlocProvider.value(value: bloc),
+          ],
           child: const RelationCellEditor(),
         );
       },

frontend/appflowy_flutter/lib/plugins/database/widgets/cell/desktop_row_detail/desktop_row_detail_relation_cell.dart

@@ -1,7 +1,8 @@
 import 'package:appflowy/generated/locale_keys.g.dart';
-import 'package:appflowy/plugins/database/widgets/row/cells/cell_container.dart';
-import 'package:appflowy/plugins/database/widgets/cell_editor/relation_cell_editor.dart';
 import 'package:appflowy/plugins/database/application/cell/bloc/relation_cell_bloc.dart';
+import 'package:appflowy/plugins/database/widgets/cell_editor/relation_cell_editor.dart';
+import 'package:appflowy/plugins/database/widgets/row/cells/cell_container.dart';
+import 'package:appflowy/workspace/application/user/user_workspace_bloc.dart';
 import 'package:appflowy_backend/protobuf/flowy-database2/protobuf.dart';
 import 'package:easy_localization/easy_localization.dart';
 import 'package:flowy_infra_ui/flowy_infra_ui.dart';
@@ -19,6 +20,7 @@ class DesktopRowDetailRelationCellSkin extends IEditableRelationCellSkin {
     RelationCellState state,
     PopoverController popoverController,
   ) {
+    final userWorkspaceBloc = context.read<UserWorkspaceBloc>();
     return AppFlowyPopover(
       controller: popoverController,
       direction: PopoverDirection.bottomWithLeftAligned,
@@ -27,8 +29,11 @@ class DesktopRowDetailRelationCellSkin extends IEditableRelationCellSkin {
       asBarrier: true,
       onClose: () => cellContainerNotifier.isFocus = false,
       popupBuilder: (context) {
-        return BlocProvider.value(
+        return MultiBlocProvider(
-          value: bloc,
+          providers: [
+            BlocProvider.value(value: userWorkspaceBloc),
+            BlocProvider.value(value: bloc),
+          ],
           child: const RelationCellEditor(),
         );
       },

frontend/appflowy_flutter/lib/plugins/database/widgets/cell_editor/relation_cell_editor.dart

@@ -6,6 +6,7 @@ import 'package:appflowy/plugins/database/tab_bar/tab_bar_view.dart';
 import 'package:appflowy/plugins/database/widgets/row/relation_row_detail.dart';
 import 'package:appflowy/startup/startup.dart';
 import 'package:appflowy/workspace/application/tabs/tabs_bloc.dart';
+import 'package:appflowy/workspace/application/user/user_workspace_bloc.dart';
 import 'package:appflowy/workspace/application/view/view_ext.dart';
 import 'package:appflowy_backend/dispatch/dispatch.dart';
 import 'package:appflowy_backend/log.dart';
@@ -112,8 +113,11 @@ class _RelationCellEditorContentState
 
   @override
   Widget build(BuildContext context) {
-    return BlocProvider.value(
+    return MultiBlocProvider(
-      value: bloc,
+      providers: [
+        BlocProvider.value(value: bloc),
+        BlocProvider.value(value: context.read<UserWorkspaceBloc>()),
+      ],
       child: BlocBuilder<RelationRowSearchBloc, RelationRowSearchState>(
         buildWhen: (previous, current) =>
             !listEquals(previous.filteredRows, current.filteredRows),
@@ -316,13 +320,16 @@ class _SearchField extends StatelessWidget {
                 FlowyOverlay.show(
                   context: context,
                   builder: (BuildContext overlayContext) {
-                    return RelatedRowDetailPage(
+                    return BlocProvider.value(
+                      value: context.read<UserWorkspaceBloc>(),
+                      child: RelatedRowDetailPage(
                         databaseId: context
                             .read<RelationCellBloc>()
                             .state
                             .relatedDatabaseMeta!
                             .databaseId,
                         rowId: row.rowId,
+                      ),
                     );
                   },
                 );
@@ -391,13 +398,17 @@ class _RowListItem extends StatelessWidget {
       ),
       child: GestureDetector(
         onTap: () {
+          final userWorkspaceBloc = context.read<UserWorkspaceBloc>();
           if (isSelected) {
             FlowyOverlay.show(
               context: context,
               builder: (BuildContext overlayContext) {
-                return RelatedRowDetailPage(
+                return BlocProvider.value(
+                  value: userWorkspaceBloc,
+                  child: RelatedRowDetailPage(
                     databaseId: databaseId,
                     rowId: row.rowId,
+                  ),
                 );
               },
             );

frontend/appflowy_flutter/lib/plugins/database/widgets/row/relation_row_detail.dart

@@ -23,7 +23,7 @@ class RelatedRowDetailPage extends StatelessWidget {
         initialRowId: rowId,
       ),
       child: BlocBuilder<RelatedRowDetailPageBloc, RelatedRowDetailPageState>(
-        builder: (context, state) {
+        builder: (_, state) {
           return state.when(
             loading: () => const SizedBox.shrink(),
             ready: (databaseController, rowController) {