Thanks My "source" (and whatever the iterator returns) are always null...so I'll have to find out why that happens.
On 02/04/2012, at 10:14 PM, Lance Java wrote: > Tapestry's own loop component might give you some inspiration too > http://tapestry.apache.org/5.3/apidocs/src-html/org/apache/tapestry5/corelib/components/Loop.html > > > On Monday, 2 April 2012, Lance Java <lance.j...@googlemail.com> wrote: >> >> Perhaps this diagram will help to debug > http://tapestry.apache.org/component-rendering.html >> >> On Monday, 2 April 2012, Chris Mylonas <ch...@opencsta.org> wrote: >>> Hi Tapestry List, >>> >>> After spending a few hours with render phases and all that comes with it > (heartbeat/resources) I'm in a bit of a jam that I don't know where to go > next. >>> I'm setting up a basic component called PhoneView that receives an > ArrayList of Phone objects...similar to the Tree example on the wiki [1] >>> >>> @CleanupRender & @BeforeRenderBody have the same code to make it easy > for the beginner (me!) to see his progress... >>> There are 2 items in the array list I have created using a BeanEditForm, > so I presume I should see three lots of the div saying "CHRIS! This is your > amazing test div - " with the render phase name. (2 x BeforeRenderBody) + > (1 x CleanupRender). >>> >>> I'm not :( >>> >>> Running your eye over this code/template...can you help me? >>> >>> >>> /** >>> * Defines the source of the phones >>> */ >>> @Parameter(required = true) >>> private ArrayList<Phone> source ; >>> >>> /** >>> * Iterator to go over the source (Phone) elements >>> */ >>> private Iterator<Phone> iterator; >>> >>> /** >>> * >>> */ >>> @Inject >>> private ComponentResources resources ; >>> >>> /** >>> * >>> */ >>> @Parameter >>> private Phone currentPhone ; >>> >>> /** >>> * >>> */ >>> @Parameter(defaultPrefix = BindingConstants.LITERAL) >>> private Block empty; >>> >>> /** >>> * >>> */ >>> @Environmental >>> private Heartbeat heartbeat ; >>> >>> /** >>> * @return >>> */ >>> @SetupRender >>> boolean SetupRender(){ >>> if( source == null ){ >>> return false ; >>> } >>> this.iterator = source.iterator(); >>> return (iterator.hasNext()); >>> } >>> >>> @BeginRender >>> void beginRender(){ >>> currentPhone = iterator.next(); >>> heartbeat.begin(); >>> } >>> >>> @BeforeRenderBody >>> void beforeRenderBody(MarkupWriter writer){ >>> >>> Element cur = writer.element("div", >>> > "class","userbackground").addClassName("adifferentbackground"); >>> cur.text("CHRIS! This is your amazing test div - > beforeRenderBody"); >>> writer.end(); >>> >>> >>> resources.renderInformalParameters(writer); >>> } >>> /** >>> * @return >>> */ >>> @AfterRender >>> boolean afterRender(){ >>> heartbeat.end(); >>> return (!iterator.hasNext()); >>> } >>> >>> /** >>> * @param writer >>> */ >>> @CleanupRender >>> void cleanupRender(MarkupWriter writer){ >>> Element cur = writer.element("div", >>> > "class","userbackground").addClassName("adifferentbackground"); >>> cur.text("CHRIS! This is your amazing test div - > cleanupRender"); >>> writer.end(); >>> } >>> >>> >>> And the tml snippet from Index.tml >>> >>> <t:grid source="phones"/> >>> <br/> >>> <t:pagelink page="Phone/Create">Add Phone</t:pagelink> >>> <br/> >>> Chris 1 >>> <br/> >>> <t:PhoneView source="phones"/> >>> <br/> >>> Chris 2 >>> >>> >>> >>> Thanks >>> Chris >>> >>> >>> >>> [1] = > https://wiki.apache.org/tapestry/Tapestry5HowToCreateYourOwnComponents --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
