topic Re: Unknown property used in expression in Alfresco Archive

Unknown property used in expression

alfsender — Sat, 07 Jun 2014 19:40:16 GMT

Hi All,I am creating Activiti workflow, but i am getting below exception..org.activiti.engine.ActivitiException: Unknown property used in expression‍Below code is my process definition file, I am creating a process where initiator start workflow and assign it to one user, that user can assign task t

Re: Unknown property used in expression

lementree — Tue, 10 Jun 2014 12:07:32 GMT

Hi Can you try as below in condition:


<conditionExpression xsi:type="tFormalExpression"><![CDATA[${execution.getVariable("tslwf_reviewOutcome")=="Approve"}]]></conditionExpression>
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Re: Unknown property used in expression

alfsender — Wed, 11 Jun 2014 18:30:24 GMT

Hi Sagar,

Thanks for the response, I already tried that but it didn't worked as well.

Just wanted to check one thing is, I have below type in my workflow content model.



      <type name="tslwf:reviewTaskOne">
         <parent>bpm:activitiOutcomeTask</parent>
         <properties>
            <property name="tslwf:userComment">
               <type>d:text</type>
            </property>
            <property name="tslwf:reviewOutcome">
               <type>d:text</type>
               <default>Reject</default>
               <constraints>
                  <constraint name="tslwf:reviewOutcomeOptions" type="LIST">
                     <parameter name="allowedValues">
                        <list>
                           <value>Approve</value>
                           <value>Reject</value>
                        </list>
                     </parameter>
                  </constraint>
               </constraints>
            </property>
         </properties>
         <overrides>
            <property name="bpm:packageItemActionGroup">
               <default>edit_package_item_actions</default>
            </property>
            <property name="bpm:outcomePropertyName">
               <default>{http://www.techspecialistlimited.com/model/workflow/1.0}reviewOutcome</default>
            </property>
         </overrides>
         <mandatory-aspects>
            <aspect>tslwf:assignee</aspect>
         </mandatory-aspects>
      </type>

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As I have given outcome as Approve and Reject, when I load form of this task, both the buttons are coming as disabled, when I select user (tslwf:assignee) then only they get enabled. On reject I am ending workflow, on approve task gets assigned to user selected.

So if user wants to reject (means end) the flow, then also he/she has to select any user in order to enable the button.

I want Reject button to be enabled by default, and approve to be disabled. When user select any approver in tslwf:assignee, then only it should get enabled.

Let me know your inputs.

Regards.

Re: Unknown property used in expression

lementree — Thu, 12 Jun 2014 06:45:00 GMT

Hi,

Unfortunately we cant disable/enable transitions depending upon form values, but you can handle value in complete event.dont make the assignee as mandatory in form, then check for the value in Complete event depending upon the out come, if the out come is Approve and Assignee is not selected then throw error.

Re: Unknown property used in expression

alfsender — Fri, 13 Jun 2014 06:33:39 GMT

Thanks, eventually I used the same approach as your.

Thanks once again.

Regards.