Write flow condition for a boolean type

BPMN & Modeling Discussion & Questions
1

Hi,
I create a form with a boolean field ( checkbox)
How can I write a flow condition to evaluate that? I always get:

“condition expression returns non-Boolean: $(approved.equals(“false”)) (java.lang.String)”

the field name and id is “approved” I tried with:

${approved} - ${!approved}
${approved eq true} - ${approved ed false}
${approved.equals(“true”)} - ${approved.equals(“false”)}

i have this approved element inside my embeded form by default on click it should have true value and false value otherwise, i have used Delegate class with output variables, but it seems that i can’t get value of approved, what should i change to get this value and then use it in Exclusive gateway?

2

If you’re using Activiti it might be better to ask the question on their forum. We can’t be sure that anything built on activiti would run with Camunda.

3

Hi @Niall i am trying to do this task inside camunda environment too.

4

Then i would suggest sticking with camunda’s own tool chain.
Creating UI with a tool designed for a different engine has a potential for unexpected problems.

5

In Camunda Modeller use Condition Type Expression and Expression as ${approved == false}.

1 Like
6

Hi Sally,

Did you try to check the example process that comes with Camunda free?
It´s an invoice process that checks the Exclusive gateway with approved or not.
In that example, they use an external form and they use “Expression” and see only “${approved}” or “${!approved}”. You can check that in the “Modeler”