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From Andre Cesta <aace...@yahoo.com>
Subject Re: Binding selection boxes to beans in cocoon forms?
Date Sat, 14 Jan 2006 06:41:07 GMT

Can anybody answer this?  Perhaps send me an email with
working selection box <-> bean binding classes/pipeline/forms 
example?

--- Andre Cesta <aacesta@yahoo.com> wrote:

> Hi,
> 
> I wonder if you can help me bind selection boxes to beans.
> (other properties on this very same form are binding just fine)
> 
> Code snippets and exception for my attempt are shown below.
> I've searched the list archives and web without luck for solutions.  The cocoon samples
(car,
> country selectors are for XML binding and did not help much on the bean binding side).
> --------------------------------8<---------------------
> Software: a study project on the area of hotel rooms management,
> where room type is (luxe, standard, etc).
> --------------------------------8<---------------------
> Cocoon version: 2.1.7
> --Bean Room.java (also questions posed on comments-----
> public class Room ...
> ....
> public Collection getRoomTypes() throws ... {
> //returns a LinkedList by the way.
> }
> 
> public void setRoomType(RoomType roomType) {
> //Should I also provide a overriden version with Long argument
> //to set the room type for binding reasons?
> ...
> }
> 
> public RoomType getRoomType() {
> ...
> }
> --room_model.xml----------------8<---------------------
> ...
>     </fd:field>
>     <fd:field id="roomType" required="true">
>       <fd:datatype base="long"/>
>       <fd:selection-list type="flow-jxpath" list-path="roomTypes" label-path="description"
> value-path="id" />
>       <fd:label>Room type:</fd:label>
>     </fd:field>
>   </fd:widgets>
> ...
> --Exception thrown by cocoon--------8<---------------------
> An Error Occurred
> Incorrect value type for "data.roomType" (expected class java.lang.Long, got class
> br.com.hotelman.datatypes.RoomType).
> 
> org.apache.avalon.framework.CascadingRuntimeException:
> "resource://org/apache/cocoon/forms/flow/javascript/Form.js", line 184: uncaught JavaScript
> exception: at room (file:/C:/cocoon-2.1.7/build/webapp/forms2/flow/room.js, Line 28)
at
> (resource://org/apache/cocoon/forms/flow/javascript/Form.js, Line 184):
> java.lang.RuntimeException: Incorrect value type for "data.roomType" (expected class
> java.lang.Long, got class br.com.hotelman.datatypes.RoomType).
> 
> cause: java.lang.RuntimeException: Incorrect value type for "data.roomType" (expected
class
> java.lang.Long, got class br.com.hotelman.datatypes.RoomType).
> ---Room.js (flow)---------------8<---------------------
> function room(form) {
> var id = cocoon.request.getParameter("id");
> var room = null;
> room = Packages.br.com.hotelman.datatypes.Room.findById(id);
> form.load(room);
> form.showForm("room-display-pipeline");
> form.save(room);
> cocoon.sendPage("room-success-pipeline", { "room": room });
> }
> --Pipeline-----------------------8<---------------------
>      <map:match pattern="room.flow*">
>        <map:call function="handleForm">
>          <map:parameter name="function" value="room"/>
>          <map:parameter name="form-definition" value="forms/room_model.xml"/>
>          <map:parameter name="bindingURI" value="forms/room_bind_bean.xml"/>
>        </map:call>
>      </map:match>
> --Template room_template.xml----8<---------------------
> ...
>       <br/>
>       <ft:widget-label id="roomType"/>
>       <ft:widget id="roomType"/>
>       <br/>
> ...
>       <input type="submit"/>
> ...
> 
> ---room_bind_bean.xml-----------8<---------------------
> ....
>   <fb:value id="roomType" path="roomType"/>
>   <fb:value id="lastInspected" path="lastInspected"/>
> </fb:context>
> --------------------------------8<---------------------
> 
> Feel free to package your working selection box form files and
> bean and send to aacesta@yahoo.com so I can use as example.
> 
> Kind regards, Andre
> 
> 
> 		
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