Filter out unavailable databases (apache#3875)

superset/views/core.py

@@ -130,6 +130,14 @@ def apply(self, query, func):  # noqa
         return query.filter(self.model.perm.in_(perms))
 
 
+class DatabaseFilter(SupersetFilter):
+    def apply(self, query, func):
+        if self.has_all_datasource_access():
+            return query
+        perms = self.get_view_menus('database_access')
+        return query.filter(self.model.perm.in_(perms))
+
+
 class DashboardFilter(SupersetFilter):
 
     """List dashboards for which users have access to at least one slice"""
@@ -203,6 +211,7 @@ class DatabaseView(SupersetModelView, DeleteMixin):  # noqa
     ]
     add_template = 'superset/models/database/add.html'
     edit_template = 'superset/models/database/edit.html'
+    base_filters = [['perm', DatabaseFilter, lambda:[]]]
     base_order = ('changed_on', 'desc')
     description_columns = {
         'sqlalchemy_uri': utils.markdown(