purchase process design

[learner]

hello,
my business proccessurchase process have  2 activity :establishment of good order,and validation the order. i want to design a form in eclipse activiti which include :
establishment of good order:
<activiti:formProperty id="Réference" name="Réference" type="string" required="true"></activiti:formProperty>
        <activiti:formProperty id="date de commande" name="date de commande" type="date" datePattern="dd-MM-yyyy hh:mm"></activiti:formProperty>
<activiti:formProperty id="Produit" name="Produit" type="string" required="true"></activiti:formProperty>
        <activiti:formProperty id="Quantité" name="Quantité" type="string"></activiti:formProperty>
  <activiti:formProperty id="Prix unitaire" name="Prix unitaire" type="string"></activiti:formProperty>
validation the order:
</userTask>
    <userTask id="usertask3" name="valider la commande" activiti:assignee="kermit">
      <documentation>liste of product to order:${Produit} </documentation>
—–
my problem in one purchase order they are many product to order, i need help to design a  form which include a list of product to order refer to one order reference,and a second form: the validation purchase order activity which displays this list,i dont' know what kind of :formPropertyto do that.
help me please;thanks

[frederikherema1]

When starting a process in explorer, there are no "start variables" passed. IN the unit-test, the POJO is created and set as variable "order" in the process. The gateway than evaluates the expression. In case of explorer, no "order" variable is present and you get the error.

A solution would be to use an execution-listener (or service-task with java-delegate) that sets the initial value (the POJO) for the "order" property, as first step of the process. This will work in all environments…