search for: find_all_subcategories

...g with acts_as_tree to print an unordered list of items: Root -- Child ---- Child I''ve got this working, however I''d like to know if there is a more elegant fashion that I''m unaware of: #Takes a parent category and recursivley returns all children def find_all_subcategories(category) if category.children.size > 0 ret = "<ul>" category.children.each { |subcat| if subcat.children.size > 0 ret += "<li>" + subcat.title ret += find_all_subcategories(subcat) ret += "</...

...t of categories, I tried a lot of things, like (in the view): --------------------------------------------------------- <ul> <% for category in @categories %> <li><%= link_to h(category.title), :action => ''edit'', :id => category %> <%= find_all_subcategories(category) %> </li> <% end %> </ul> ---------------------------------------------------------- But I ALWAYS and whatever I try I got this error message: "You have a nil object when you didn''t expect it! You might have expected an instance of Array. The error o...