PropertyNotFoundException in form

[kaech]

I am trying to map JavaBean properties to form properties as described in the user guide.

<userTask id="order" name="order" activiti:formKey="order.form">
<documentation>order</documentation>      
<extensionElements>
<activiti:formProperty id="quantity" variable="quantity" expression="#{order.quantity}" required="true" type="long" />
</extensionElements>
…
</userTask>

In the form I always get a javax.el.PropertyNotFoundExeption for the property quantity.
In ACT_RU_VARIABLE I only see the serialized JavaBean.
${order.quantity} is available in the form but ${quantity} is not.

Do you have any advice?

[frederikherema1]

Hi,

The "variable" attribute means that the value should be fetched from variable ${quantity}. You should just remove the variable attribute, if you're using the expression.

[kaech]

I tried it, but it does not work.

This is what I did:
<activiti:formProperty id="quantity" expression="#{order.quantity}" required="true" type="long" />

Do you have any other suggestions?

[frederikherema1]

Does your order-bean actually have a getQuantity()? The ELResolver resolves part by part, so when he's complaining about 'quantity' it might as well be the '.quantity' in  'order.quantity'…

[kaech]

I double checked, getQuantity is there.
I renamed quantity to thequantity like this:

<activiti:formProperty id="thequantity" expression="#{order.quantity}" required="true" type="long" />

Now Activiti throws a PropertyNotFoundException for thequantity.
In the form ${order.quantity} works but not ${thequantity}.

[frederikherema1]

Thats really strange… Could you perhaps create a test-case for this (http://activiti.org/userguide/index.html#apiUnitTesting), because I checked the code that is responsible for getting/setting form-property values, and error shouldn't occur when expression is filled in.

[kaech]

Yes, but that might take a while.
I am using Activiti 5.2. Could that be the reason?

[frederikherema1]

Hi,

Thats a possibility, although I don't see any changes to that are on first sight in SVN history…

[kaech]

Do I have to declare the taks form properties before they can be used?

The userguide says:
"So there is no need to declare task form properties if they match 1-1 with the process variables."

But what if they don't match 1-1 as in my case?

I never declared the task form properties and they are not submitted during the startEvent.
Could that be the problem?

[frederikherema1]

Not really sure shat you mean.

"So there is no need to declare task form properties if they match 1-1 with the process variables."

If you submit form-property values (in the Map<String, String>) for which no formProperty is defined in the process-definition, the form property value is just submitted (string) variable with the name of the variable equal to the id of the property (key in the map).