[dashboard] fix, add config to optionally enable react replacement fo… (#9025)

* [dashboard] fix, add config to optionally enable react replacement for CRUD views

* move app.config to function scope

superset/config.py

@@ -699,6 +699,10 @@ DOCUMENTATION_URL = None
 DOCUMENTATION_TEXT = "Documentation"
 DOCUMENTATION_ICON = None  # Recommended size: 16x16
 
+# Enables the replacement react views for all the FAB views: list, edit, show.
+# This is a work in progress so not all features available in FAB have been implemented
+ENABLE_REACT_CRUD_VIEWS = False
+
 # What is the Last N days relative in the time selector to:
 # 'today' means it is midnight (00:00:00) in the local timezone
 # 'now' means it is relative to the query issue time

superset/views/dashboard/views.py

@@ -25,7 +25,7 @@ from flask_appbuilder.security.decorators import has_access
 from flask_babel import gettext as __, lazy_gettext as _
 
 import superset.models.core as models
-from superset import db, event_logger
+from superset import app, db, event_logger
 from superset.constants import RouteMethod
 from superset.utils import core as utils
 
@@ -57,6 +57,8 @@ class DashboardModelView(
     @has_access
     @expose("/list/")
     def list(self):
+        if not app.config["ENABLE_REACT_CRUD_VIEWS"]:
+            return super().list()
         payload = {
             "user": bootstrap_user_data(g.user),
             "common": common_bootstrap_payload(),