[T5] editing a looped list of objects' properties in a form

[Andy Pahne]

I am trying to edit the properties of objects contained in a list by 
using a loop in a form component. But it does not work, because the 
objects in the list are not updated.



The list of passengers:

    @Property @Persist
    private List<Passenger> passengers;


This list is initialized like this:

    @BeforeRenderTemplate
    public void initialize() {
        int passengersTotal = getQuery().getPassengersTotal();
        if(passengers == null) {
            passengers = new ArrayList<Passenger>(passengersTotal);
            for (int i = 0; i < passengersTotal; i++) {
                passengers.add(new Passenger());
            }
        }
    }



I try to buid a form in order to edit the passengers like this:


    <form t:type="Form"
          t:id="search_accommodation"
          t:clientValidation="false"
          t:autofocus="false">
         <t:loop source="passengers" value="passenger">
                 <fieldset class="column first">
                    <legend>${message:firstName-label}</legend>
                    <input type="text"
                           t:type="TextField"
                           t:value="passenger.firstName"
                           t:validate="required,minLength=2"
                           t:id="firstName"/>
                </fieldset>
         </t:loop>
    </form>




Unfortunatly, after a successful submit, the firstName property is not 
set for any of the passengers contained in that list. I veryify that by 
the following logging statements:


    public void onSuccess() {
        int passengersTotal = getSearchOptions().getPassengersTotal();
        for (int i = 0; i < passengersTotal; i++) {
            System.out.println("Passenger '"+i+"'" + ": " +
                passengers.get(i).getFirstName());
        }
    }


which always produces the output:

   Passenger '0': null
   Passenger '1': null


I thought that this would be the way to go, but I must be wrong somehow. 
Could anybody tell me what's the correct pattern to use here?


Thank you,
Andy









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