I have a page type class with a parent page type class, like the ArticlePage and ArticleHolder relationship in tutorial 2, by setting $allowed_children.

I need a count value of the number of children in a page of type ArticleHolder (in a .ss file). What would be the best way to go about this? I'm not sure where the code should go.

I know I can do things like <% control Children %> to iterate through the children, although I haven't come across a straightforward way to get a count of the number of children as a $variable.

Thanks in advance