IPersistence update function not implemented

[Son Nguyen H.]

Hi guys,

When I tried to use the update function of IPersistence (link), I get this error:

"{\"stack\":\"Error: Not implemented.\\n at app/apps/server/bridges/persistence.ts:109:9\\n at /app/bundle/programs/server/npm/node_modules/meteor/promise/node_modules/meteor-promise/fiber_pool.js:43:40\\n at Gt.executeViewSubmitHandler (evalmachine.<anonymous>:13:6420)\",\"message\":\"Not implemented.\"}"

I've already added the persistence permission.
Please implement this function.

Thank a lot!