How to provide informations to a FormPropertyRenderer

[martin_p]

Hi,

My form has an output string given by the setting of a group of radio buttons.
I need to decide at runtime if this group of radio buttons should display or not.
So I think I should provide an input variable to the form renderer so that it can call services to know if the buttons should display or not.

My question is : how can I pass an input variable to the form renderer, assuming this variable depends on the workflow context?

I already tried using expression as explained here (http://forums.activiti.org/content/cannot-set-value-non-lvalue-expression) but I got of problems and think I am not on the good track!

Thanks in advance,
Martin

[trademak]

Are you implementing a form renderer in Vaadin? Or are you writing your own custom renderer?
In the latter case I would advise to get a process variable using the RuntimeService and interpret its value.

Best regards,

[martin_p]

Hi,

Thanks for your answer!

Yes, this a Vaadin form renderer. It extends org.activiti.explorer.ui.form.AbstractFormPropertyRenderer

I looked at RuntimeService and all getVariable*(…) method require at least a process id, which does not seam to be available within the context of a FormPropertyRenderer configuration:

<code>
public Field getPropertyField(FormProperty formProperty) {…}
</code>

Am I wrong?

Best regards,
Martin

[jbarrez]

Afaics, there is indeed no way to get the current execution or process instance.
Imho, this is missing feature which must be added to make it usable.

[martin_p]

OK, thank you for clarifying this point.