search for: acts_as_tree_addit

This is a very straightforward problem.. -I included a mixin in lib/ (see below) -In environment.rb, I included the require statement (require ''acts_as_tree_additions'') -Defined a method in the model: def category_list format_as_list #method in acts_as_tree_additions end -Called that method in the view.. I know the method is in the correct use, because it prints out a string if I replace ''format_as_list'' with a string in cat...