Command interceptor

vbo75 · November 27, 2023, 10:29am

Hi,

What’s change when we put ‘true’ at the end of a command interceptor :

this.executed(‘shape.create’, function(context) {
…something to do
}, true);

In my case, in a beahvior class, the function isn’t execute when true is adding, why ?

Thanks.

Martin · November 27, 2023, 1:27pm

The argument you are referring to is the unwrap flag. If it is true, the event is unwrapped in the function:

github.com

bpmn-io/diagram-js/blob/d0648c88fe8cc58fd9307c06c3d0fcddcd9c6e24/lib/command/CommandInterceptor.js#L55-L59


      
          function unwrapEvent(fn, that) {
            return function(event) {
              return fn.call(that || null, event.context, event.command, event);
            };
          }

You don’t get the event directly from the eventBus, but the context, command and event as separate arguments into the function.

If this is not working, can you please share a CodeSandbox that reproduces your issue in a way that we can inspect it?

Thank you!

vbo75 · November 27, 2023, 4:26pm

Ok, that’s why, when I check event.context param, I’ve got undefined.
Thanks a lot

system · December 4, 2023, 4:27pm

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