[jboss-user] [JBoss Seam] - org.hibernate.HibernateException: identifier of an instance

This is the set-up: a document belongs to a category. Category is a class with an ID (Integer - auto generated), a name and a description. One category can have many documents. A data table of documents is displayed. The category is in a selectOne and the name is displayed. This is what it looks like in the view: | <h:selectOneMenu id="category" value="#{document.category.categoryID}" required="true"> | <f:selectItems value="#{categorySessionBean.categoryList}" /> | </h:selectOneMenu> | This is what an f:selecItem looks like: | categoryList = new SelectItem[categories.size()]; | int i=0; | for(Category cat:categories){ | categoryList(i)=new SelectItem(cat.getCategoryID(), cat.getName()); | i++; | } | The () after categoryList should be square brackets. It is seen as formatting and ignored. I've tried s:selectItems and it doesn't work for me. I get and "invalid value" when trying to do an update with it. Maybe the place holders have something to do with it. How can I use a selectOne to change the category of a document? The display is right, the xhtml code is right, just it does not work. Any help will be greatly appreciated. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4103175#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...