I've finally figured out the cause of the problem but is just really
weird. Turns out the problem was being caused by a CSS class name!
This is the code from the breadcrumb component:
<div class="module"
xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd";>
<t:loop source="menuItems" value="currentMenuItem">
<a
href="${context}${currentMenuItem.link}">${currentMenuItem.text}</a>
<img src="/images/arrow.png" alt="" />
</t:loop> ${currentPage.text}
</div>
The css in the container component for class="module" had something like
this:
div.module{
background: url(../images/square2.gif) no-repeat bottom left;
}
This were around 4 images loaded the same way. Apparently, all the paths
were invalid.
So I changed them to
div.module {
background: url(${asset:context:/layout/images/square2.gif})
no-repeat bottom left;
}
And all the Hibernate queries disappeared? Can someone please explain to
me what is going on here?
I'm just lost. I'm using Hibernate with Spring, not tapestry-hibernate
as I need access to multiple databases.
Thanks,
Jeshurun
On Mon, 2010-10-18 at 16:20 -0600, Jeshurun Daniel wrote:
> Hi Howard,
>
> Thanks for the quick reply, I really need help with this.
>
> I have three page classes, Index, Page1 and Page2
>
> Template for Index:
> <div t:type="MyTheme"
> t:mainMenuId="1" //I'm passing a param for the menu, but I don't want
> breadcrumbs on this page
> // Other page specific stuff
> </div>
>
> Template for Page1:
> <div t:type="MyTheme" // I want neither menu nor breadcrumbs on this
> // Other page specific stuff
> </div>
>
> Template for Page2:
> <div t:type="MyTheme"
> t:breadcrumbId="12"// I want just breadcrumbs on this page
> // Other page specific stuff
> </div>
>
> I have three components, a layout component, a menu component and a
> page component.
> This is the source for the layout component
>
> public class MyTheme {
>
> @Property
> @Parameter(required = false)
> private Integer breadcrumbMenuId;
>
> @Property
> @Parameter(required = false )
> private Integer mainMenuId;
>
> public boolean isMainMenu(){
> if(mainMenuId != null && mainMenuId != 0)
> return true;
> return false;
> }
>
> public boolean isBreadcrumb(){
> if(breadcrumbMenuId != null && breadcrumbMenuId != 0)
> return true;
> return false;
> }
>
> //other code
> }
>
> The is the simplified layout component template
> <t:if test="mainMenu">
> <t:mainMenu mainMenuId="inherit:mainMenuId" />
> </t:if>
>
> <t:if test="breadcrumb">
> <t:breadcrumb breadcrumbMenuId="breadcrumbMenuId" />
> </t:if>
>
> This is the code for the breadcrumb component
> public class Breadcrumb {
>
> @Inject
> private MenuService menuService;
>
> @Parameter(required=true)
> private Integer breadcrumbMenuId;
>
> @Property
> private List<MenuItem> menuItems;
>
> @SuppressWarnings("unused")
> @Property
> private MenuItem currentMenuItem;
>
> @SuppressWarnings("unused")
> @Property
> private MenuItem currentPage;
>
> @BeginRender
> void setupBreadcrumb(){
> menuItems = menuService.getMenuItemTree(breadcrumbMenuId);
> currentPage = menuItems.remove(menuItems.size()-1);
> }
> }
>
> And the corresponding template
> <div class="module"
> xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd";>
> <t:loop
> source="menuItems" value="currentMenuItem">
> <a
> href="${context}${currentMenuItem.link}">${currentMenuItem.text}</a>
> <img src="/images/arrow.png" alt="" />
> </t:loop> ${currentPage.text}
> </div>
>
> And finally the menu component class
>
> public class MainMenu extends Menu{
>
> @Parameter(required = true )
> private Integer mainMenuId;
>
> @BeginRender
> void setupComponent(){ //The superclass calls a method in the service
> to build a composite
> super.setupComponent(mainMenuId);
> }
> }
>
> and its template
> <div id="menu-mss" class="moomenu"
> xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd";>
> <ul class="menutop">
> <t:outputraw value="menu.print()"/> //the menu property comes from the
> superclass
> </ul>
> </div>
>
>
> Now everything here works fine and I don't get any errors.
> This is the general flow of the application.
> 1. When someone logs in they come to the index page. This page only
> has a menu and no breadcrumbs
> 2. The second page has neither a menu nor a breadcrumb. It simply has
> a pagelink to Page2
> 3. The third page only has the breadcrumb. This is where the problem
> is.
> The breadcrumb component runs two queries to build the breadcrumb for
> this page.
> But when I look at the console when this page loads, I see these two
> queries, plus four repetitions of the query
> for building the menu. The menuId in these queries is the menuId i set
> on the Index page(1).
> I have no idea how it is still hanging around. If I print it in the
> getter/setter or the component, or
> in the setupComponent() method and refresh page2, I see that it is
> called four times and prints out menuId as 1,
> even though I'm not passing it in the page class. However, if I
> restart the server and go straight to page2,
> then the getter method for menuId is never called and I dont see the
> query for the menu in the console.
>
> I tried moving the breadcrumb component to the page class and it does
> the same thing. Its almost as if the menuId
> parameter passed from the Index page into the component has been
> persisted. If i remove the breadcrumb tag in
> the page class, the menu queries don't show up either. If i remove the
> <t:mainMenu /> tag from the component,
> again the additional queries disappear.
>
> I tried something like this in the component after making mainMenuId a
> prop binding
> @AfterRender
> void cleanUp(){
> mainMenuId = null;
> }
> Still the same thing.
>
> I tried setting cache=false on mainMenuId on the component with no
> luck
>
> My setup uses Tapestry 5.1.0.5, spring 2.5.6 and the latest version of
> Hibernate (3.2.x).
> Again, I don't get any errors. Its just that it bothers me because I
> don't understand why it does that :). Besides, building
> the menu is expensive (very recursive), so I don't want to do it if
> the page doesn't need it.
> This is probably either expected behaviour or I'm just blindly
> overlooking something, but in either case, any pointers on
> how I can get around this is appreciated.
>
> Thanks in advance,
> Jeshurun
