Re: menu item order if menu stored in database

I guess it is becuase menu items are put into a
HashMap in MenuRepository, that's why the sequence is
not presevered.

--- lixin chu <lixin_chu-/[email protected]> wrote:

> Hi,
> would like check if anyone has encountered this
> before.
> 
> i basically want to display menu items in a
> particular
> order. the menu items are stored in a database. I
> followed the online example. I deliberatly store the
> menu items into the database according to the view
> sequence. The resulted list of items show the
> corrent
> sequnce. However, when jsp renders the topMenus, it
> seems that it order is not what I stored in the
> database (the sub menu items are all correctly
> displayed in each top menu).
> 
> SQL query menu database:
> ------------------------
> "from Menu p order by p.id asc"
> 
> in my StartupListener:
> ----------------------
> MenuRepository defaultRepository = (MenuRepository)
> context.getAttribute
> (MenuRepository.MENU_REPOSITORY_KEY);
> MenuRepository repository = new MenuRepository();
>
repository.setDisplayers(defaultRepository.getDisplayers());
> MenuManager mgr = (MenuManager)
> ctx.getBean("menuManager");
> 
> List menus = mgr.getMenus();
> for (int i=0; i<menus.size();i++) {
>   MenuComponent mc = new MenuComponent();
>   Menu m = (Menu) menus.get(i);
>   BeanUtils.copyProperties (mc, m);
>   String parent = m.getParentName();
>   if(parent != null) {
>     MenuComponent parentMenu =
> repository.getMenu(parent);
>     if (parent == null) {
> 	parentMenu = new MenuComponent();	
> parentMenu.setName(parent);    		
> repository.addMenu(parentMenu);
>     }
>     mc.setParent(parentMenu);
>   }    			
>   repository.addMenu(mc);
>  }
>     		
> context.setAttribute("menuRepository", repository);	
> 	
> 
> in my jsp file:
> ----------------
> <menu:useMenuDisplayer name="ListMenu"
> repository="menuRepository">
>  <c:forEach var="menu"
> items="${menuRepository.topMenus}">
>     <menu-el:displayMenu name="${menu.name}"/>
>  </c:forEach>
> </menu:useMenuDisplayer>
> 
> 
> I am not sure how to control the <c:forEach> with
> menuRepository so that it displays the topMenu in my
> intended order.
> 
> thanks
> li xin
> 
> 
> 		
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