dpgaspar commented on code in PR #20081:
URL: https://github.com/apache/superset/pull/20081#discussion_r929165965


##########
superset/security/manager.py:
##########
@@ -933,6 +933,167 @@ def _is_granter_pvm(  # pylint: disable=no-self-use
 
         return pvm.permission.name in {"can_override_role_permissions", 
"can_approve"}
 
+    def database_after_delete(  # pylint: disable=unused-argument
+        self,
+        mapper: Mapper,
+        connection: Connection,
+        target: "Database",
+    ) -> None:
+        view_menu_table = self.viewmenu_model.__table__  # pylint: 
disable=no-member
+        permission_view_menu_table = (
+            self.permissionview_model.__table__  # pylint: disable=no-member
+        )
+
+        view_menu_name = target.get_perm()
+
+        # Clean database access permission
+        db_pvm = self.find_permission_view_menu("database_access", 
view_menu_name)
+        if not db_pvm:
+            logger.warning(
+                "Could not find previous database permission %s",
+                view_menu_name,
+            )
+            return
+        connection.execute(
+            permission_view_menu_table.delete().where(
+                permission_view_menu_table.c.id == db_pvm.id
+            )
+        )
+        connection.execute(
+            view_menu_table.delete().where(view_menu_table.c.id == 
db_pvm.view_menu_id)
+        )
+
+        # Clean database schema permissions
+        schema_pvms = (
+            self.get_session.query(self.permissionview_model)
+            .join(self.permission_model)
+            .join(self.viewmenu_model)
+            .filter(self.permission_model.name == "schema_access")
+            
.filter(self.viewmenu_model.name.like(f"[{target.database_name}].[%]"))

Review Comment:
   `database.database_name` is unique, my reasoning here is that:
   - it's possible there are orphaned schema permissions from old schemas of 
the same db (no problem here)
   - renaming and then creating a new db, for example:
   
   1 - create database named `db1` with schemas `db1_schema1` and `db1_schema2`
   2 - rename the database `db1` -> `db2` (would leave those perms "orphaned")
   3 - create a database named `db1` with schemas `db1_schema1_1`
   4 - delete database `db1`
   
   this would delete schema perms `[db1].[db1_schema1]`, `[db1].[db1_schema2]`, 
`[db1].[db1_schema1_1]`. No arm done



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