How to act on task assigned to group as a group member.

[faraon79]

Hello,

I created a definition and assign human task to group1 using code below.

<bpmn:dataInput id="_jbpm-unique-2_GroupIdInput" name="GroupId" />
<bpmn:inputSet>
<bpmn:dataInputRefs>_jbpm-unique-2_GroupIdInput</bpmn:dataInputRefs>
</bpmn:inputSet>
<
  <bpmn:targetRef>_jbpm-unique-2_GroupIdInput</bpmn:targetRef>
  <bpmn:assignment>
  <bpmn:from xsi:type="bpmn:tFormalExpression">group1</bpmn:from>
  <bpmn:to xsi:type="bpmn:tFormalExpression">_jbpm-unique-2_GroupIdInput</bpmn:to>
  </bpmn:assignment>
</bpmn:dataInputAssociation>

Users and groups are defined in property files:

users.property

user1=password
user2=password

roles.property

user1=admin,manager,users,group1,group3
user2=admin,manager,users,group2,group3
user3=admin,manager,users,group1

When I try to list tasks:

/task/query?potentialOwner=user1

The list is empty, the same for user3. I have to use group1 as potential owner to see this task in this way..

And when try to start task as user1 or user3 I get:

<response>
    <status>FAILURE</status>
    <error>org.hibernate.WrongClassException: Object with id: group1 was not of the specified subclass: org.jbpm.services.task.impl.model.UserImpl (loaded object was of wrong class class org.jbpm.services.task.impl.model.GroupImpl)</error>
    <stackTrace>javax.persistence.PersistenceException: org.hibernate.WrongClassException: Object with id: group1 was not of the specified subclass: org.jbpm.services.task.impl.model.UserImpl (loaded object was of wrong class class org.jbpm.services.task.impl.model.GroupImpl)
  at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1361)

When I send request /task/{taskId}

potential owner is u:group1. I understand that "u:" means user not group, am I right?

If so, isn't it a bug?

[salaboy21]

Hi Tomasz,

so what's exactly the question here?

You just created a task and it is assigned to a Group.. ok.. now you need to use the jbpm human task service apis to get all the tasks where your currently logged user is a potential owner. If he/she belongs to the group (in this case group1) he/she will see the task.

Regards

[faraon79]

Sorry, I used ctrl+S and I thought it save it as a draft but it was posted.

[salaboy21]

It doesn't seem to be a bug yet. Did you tried using deploying the process definition inside the KIE-WB and working wiht the task list UI there?

I usually recommend doing so before interacting with the services to make sure that everything is set up correctly first.

If you can give it a try and let us know if the UI has the same problem that you are describing here we can check what is going wrong.

You can also share your process so we can give it a try.

Regards

[faraon79]

I tried to start process both way: using rest and from kie-wb. Now I'm only getting "No active JTA transaction on joinTransaction call" on start event. I've attached a definition, would be great if you could take a look on it. Thanks.

[salaboy21]

Can you share the full stack trace where it shows the "No Active JTA Transaction on.." using pastebin.com or something like that?

Thanks

[faraon79]

http://pastebin.com/YreS393i

[salaboy21]

This seems to be the issue:

1. Could not commit session: javax.persistence.PersistenceException: org.hibernate.exception.ConstraintViolationException: Unique index or primary key violation: "PRIMARY_KEY_C6 ON PUBLIC.ORGANIZATIONALENTITY(ID)"; SQL statement:
2. insert into OrganizationalEntity (DTYPE, id) values ('Group', ?) [23505-161]
3. 
   

group1 doesn't seems to exist as a group in the database. That's seems to be the problem

Can you please share with us which version of jBPM/KIE Workbench are you using? So we can investigate further

[faraon79]

I'm using jBPM6.0.1. Is it a correct way to define group by just adding them to user roles in roles.property file or does it require any extra steps?

[salaboy21]

One more question, how and where are you deploying the application? are you using JBoss?

Because what could be failing is the userGroupCallbacks that looks for those entries in the database and depending your environment you need to do different setups.

Regards

[faraon79]

This is bundle version downloaded from jbpm web site. I just unzipped and use: ant install.demo.noeclipse and ant start.demo.noeclipse in Windows7.

Can I ask for an update, please.