topic Re: Unable to use custom outcomes in process in Alfresco Archive

Unable to use custom outcomes in process

sart — Mon, 01 Feb 2016 20:01:54 GMT

Hi,Clarification is needed on how to use Form's custom outcomes with Exclusive Gateway<!–break–>I'm trying to create the simple process with UserTask followed by Exclusive Gateway and 2 other UserTasks depended on its condition. I've created two custom outcomes for the first UserTask: Agree an

Re: Unable to use custom outcomes in process

sart — Tue, 02 Feb 2016 06:07:50 GMT

The error is:
<blockcode>
org.activiti.engine.ActivitiException: Unknown property used in expression: ${outcome == "Agree"}] with root cause
org.activiti.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'outcome'
at org.activiti.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:81)
at org.activiti.engine.impl.juel.AstBinary$SimpleOperator.eval(AstBinary.java:27)
at org.activiti.engine.impl.juel.AstBinary.eval(AstBinary.java:192)
at org.activiti.engine.impl.juel.AstEval.eval(AstEval.java:49)
at org.activiti.engine.impl.juel.AstNode.getValue(AstNode.java:25)
</blockcode>

Re: Unable to use custom outcomes in process

martin_grofcik — Tue, 02 Feb 2016 08:25:21 GMT

Hi,

'outcome' identifier does not exist in the execution.
Could you create jUnit test please?

https://forums.activiti.org/content/sticky-how-write-unit-test

Regards
Martin

Re: Unable to use custom outcomes in process

sart — Tue, 02 Feb 2016 14:25:34 GMT

Hi Martin,
I've created jUnit test but it passes successfully because the 'outcome' needs to be created from Activiti 6 UI reference form and I don't know how to create JUnit test that could produce the same case environment…
I posted full details here: https://activiti.atlassian.net/browse/ACT-4114
BR, Sergey

Re: Unable to use custom outcomes in process

sart — Wed, 03 Feb 2016 06:51:05 GMT

I've workaround for this problem by using custom Spring bean:
<code>
public boolean checkOutcomeVar(String taskName, String outcome, DelegateExecution delegateExecution) {
Boolean result = false;
ProcessInstance process = runtimeService.createProcessInstanceQuery()
    .processInstanceId(delegateExecution.getProcessInstanceId()).singleResult();
Task task = taskService.createTaskQuery().processInstanceId(process.getId()).taskName(taskName).singleResult();
if (task == null) {
   throw new FormValidationException("Task '" + taskName + "' was not found");
}
Form form = formProcessingService.getTaskForm(task.getId());
String formNNoutcome = "form" + Long.toString(form.getId()) + "outcome";
String outcomeResult = (String) delegateExecution.getVariable(formNNoutcome);
if (outcomeResult.equals(outcome)) {
   result = true;
}
return result;
}
</code>

Now the flow condition is:

<java>${outcomeBean.checkOutcomeVar("UserTask1", "Agree", execution)}</java>

full code is here https://github.com/sarthome/activiti-sa-extensions/blob/master/src/main/java/com/activiti/extension/bean/OutcomeBean.java

Re: Unable to use custom outcomes in process

maudrid — Fri, 26 Feb 2016 11:24:35 GMT

I found that the outcome is saved in the process variables, it is just not called outcome.
It is called "from<form_id>outcome" for example ''form1004outcome''.
So you should be able to do something like "${form1004outcome == "Agree"}"

Re: Unable to use custom outcomes in process

sart — Fri, 26 Feb 2016 11:29:29 GMT

Hi Maudrid,

No, you can't. Because 1004 is process instance dependent number. And you have to identify it dynamically.
So I had to do it via spring bean.

Regards

Re: Unable to use custom outcomes in process

maudrid — Mon, 29 Feb 2016 16:56:51 GMT

I've looked into this and you are right that the ID is not the form id.
But you are wrong in that the ID is not tied to the instance, it is tied to the deployment.
This means that you do have to dynamically get the id.
I tried to do this in a script, but I cant get access to the FormProcessingService.

Re: Unable to use custom outcomes in process

maudrid — Wed, 02 Mar 2016 14:54:55 GMT

I have this working now without needing a custom java bean.
In the task, I create a TaskListener on complete:
Class: org.activiti.engine.impl.bpmn.listener.ScriptTaskListener
Param1 name: language
Param1 string value: javascript
Param2 name: script
Param2 string:
<code>
var formKey = formService.getTaskFormKey(task.getProcessDefinitionId(), task.getTaskDefinitionKey());
var execution = task.getExecution();
var outcome = execution.getVariable('form'+formKey+'outcome');
</code>

Re: Unable to use custom outcomes in process

martin_grofcik — Thu, 03 Mar 2016 08:08:06 GMT

The strange thing is that variable is saved as
formPrefix+formKey+name
The name should be static from my point of view.

Regards
Martin

Re: Unable to use custom outcomes in process

abbask — Fri, 24 Jun 2016 09:57:01 GMT

no need to get execution. the 'task' object itself can get the form outcome variable.

Re: Unable to use custom outcomes in process

robsoncardoso_t — Fri, 13 Jan 2017 12:47:52 GMT

In Activiti 6 beta 4 the standard is formPrefix + "_" + formKey + "_" +name. Ex: "form_1004_outcome". ${form_1004_outcome=="Agree"}

Re: Unable to use custom outcomes in process

lamya — Wed, 26 Jul 2017 12:39:59 GMT

Hi,

I have the same problem, my form is

"name":"Test","key":"1000","version":0,

"outcomes":
[{"id":null,"name":"A"},{"id":null,"name":"B"}]
I try : ${form_1000_Test=="A"}

But I have an error, it doesn't work. Any idea please ?

thanks for the help

Re: Unable to use custom outcomes in process

mohammed7852 — Thu, 13 Jun 2019 08:42:53 GMT

Hi,

I am just start working with activiti 6 ,

can you please tell me how to post form variables and outcomes, using rest api?

and based on that outcomes it will go to specific task.