Show notification from middleware (core)

Support
#1

HI. Currently I’m using

> throw RuntimeException("message");

Are there something more suitable?

My goal is to show a Notification if something goes wrong at onBeforeInsert and abort insert process

#2

Hi,

It is impossible to show notification directly from the middleware due to distributed architecture of the platform.

There is more convenient exception for your task: com.haulmont.cuba.core.global.validation.CustomValidationException. For instance, It will be passed to REST-API clients as JSON object with message.

Also, you could introduce your own business exceptions and implement exception handlers for them: Client-Level Exception Handlers - CUBA Platform. Developer’s Manual

1 Like
#3

Thanks.

Actually, some minutes after post, I thought just the same thing. No sense to launch Dialogs from middlewar.