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

[chrismalan]

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.

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