Simon,
I'm not entirely sure why the getTicketNumber() gets called before the
ticket gets set, maybe you can put in a break point in the method and look
at the stack trace and see what's calling it. Just looking at it like this,
I have no explanation why it's being called.
On your question of not rendering the component based on its state : it
seems that it depends on how you want to do it. If this 'don't render empty'
behavior is expected to be a part of the ViewTicket component, you can
always use a t:if to inspect the state of the ticket in the component
template render nothing if the ticket is in a state that shouldn't be
rendered. It seems that the best approach there would be to have 2 blocks :
one for empty ticket, one for "displayable" ticket, and then use a t:if to
select which block to render, e.g.
<div id='content'>
<t:delegate to='contentBlock' />
</div>
<t:block t:id="fullContent"> .... </t:block>
<t:block t:id="emptyBlock"> ...</t:block>
... and then in the component class ...
@Component
Block fullContent
@Component
Block emptyBlock
public Block getContentBlock() {
if (this.ticket.foo='bar') {
return emptyBlock;
} else {
fullContent;
}
}
Something like that.. I haven't tested the exact code above, but I have a
few similar examples. I think JumpStart (
http://jumpstart.doublenegative.com.au:8080/jumpstart/) has some examples to
illustrate this but I don't have the exact URL for that.
Cheers,
Alex Kotchnev
On Sun, Mar 1, 2009 at 12:09 AM, Simon Raveh <simon.ra...@icann.org> wrote:
> Hi,
>
> I'm switching from Tapestry 4 to to Tapestry 5 and I need help with a
> simple component.
> I have a component ViewTicket that display Ticket information. The tml file
> code:
>
> <t:container xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd
> ">
> <div style="display: block;" id="output">
> <div id="assessment_panel">
> <div class="safe" id="box_assessment">
> <h2>Ticket Information</h2>
> </div>
> </div>
> <div id="results_panel">
> <table id="ns_table">
> <tbody>
> <tr>
> <th>Ticket ID</th>
> <th>Status</th>
> <th>Queue</th>
> <th>Created</th>
> </tr>
> <tr>
> <td>${ticketNumber}</td>
> <td>${status}</td>
> <td>${queue}</td>
> <td>${created}</td>
> </tr>
> </tbody>
> </table>
> </div>
> </div>
> </t:container>
>
> And the java code
>
> public class ViewTicket implements TicketViewer {
>
> @Inject
> private Logger logger;
>
> @Parameter(required = true)
> private RTTicket ticket;
>
> @Log
> @BeforeRenderTemplate
> void beforeRenderTamplate(){
> }
>
> @Log
> public Long getTicketNumber() {
> return ticket == null ? null : ticket.getId();
> }
>
> @Log
> public String getQueue() {
> return ticket == null ? null :ticket.getQueue();
> }
>
> @Log
> public String getStatus() {
> return ticket == null ? null :ticket.getStatus();
> }
>
> @Log
> public Date getCreated() {
> return ticket == null ? null : ticket.getCreated();
> }
>
> public void addTicket(RTTicket ticket) {
> this.ticket = ticket;
> }
>
> public void clearTicket() {
> this.ticket = new RTTicketImpl();
> }
> }
> And my page Index.tml
>
> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "
> http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";>
> <html t:type="layout" xmlns:t="
> http://tapestry.apache.org/schema/tapestry_5_0_0.xsd";>
> <body>
> <h1>Request (Ticket) Information</h1>
> <p>To check the status of your request, please enter the ticket
> number (numerical value only) below: </p>
> <form t:type="form" t:id="search_form" action="#">
> <t:errors/>
> Ticket ID:
> <input t:type="TextField" t:id="ticketId"
> t:clientId="id_query" validate="required"/>
> <input type="submit" value="Submit Query"
> id="form-submit-button"/>
> </form>
> <span t:type="ViewTicket" t:ticket="prop:ticket" />
> </body>
> </html>
>
> Index.java
>
> public class Index {
>
> @Inject
> private Logger logger;
>
> @Property
> private long ticketId;
>
> void onValidateForm() {
>
> }
>
> void onSuccess() {
> }
>
> @Log
> public RTTicket getTicket() {
> return new RTTicketImpl();
> }
> }
>
> My problem is that Tapestry is calling the method getTicketNumber before
> the Ticket parameter is bound.
> Here are the logging output:
>
> [DEBUG] components.ViewTicket [ENTER] beforeRenderTamplate()
> [DEBUG] components.ViewTicket [ EXIT] beforeRenderTamplate
> [DEBUG] components.ViewTicket [ENTER] getTicketNumber()
> [DEBUG] pages.Index [ENTER] getTicket()
> [DEBUG] pages.Index [ EXIT] getTicket
> [org.iana.ietf.ticketstatus.moodel.rtticketi...@3805fd37]
> [DEBUG] components.ViewTicket [ EXIT] getTicketNumber [null]
> [DEBUG] components.ViewTicket [ENTER] getStatus()
> [DEBUG] components.ViewTicket [ EXIT] getStatus [null]
> [DEBUG] components.ViewTicket [ENTER] getQueue()
> [DEBUG] components.ViewTicket [ EXIT] getQueue [null]
> [DEBUG] components.ViewTicket [ENTER] getCreated()
> [DEBUG] components.ViewTicket [ EXIT] getCreated [null]
>
> Any clue to what I'm doing wrong or help will be much appreciate
>
> My second question is what the best way to cause the component ViewTicket
> not to render base on the state of the ticket it gets as parameter
>
> Thanks,
> Simon
>
