Comparing two nested_sets about awesome_nested_set

Sorry, I don't really have any suggestions for you.

[KevinTriplett]

You may have to store the category_id in the customers_categories table, that way you can at least iterate through the Categories.all collection and remove the ones that match your customers_categories.category_id. Wait, shouldn't that column be in the table anyway? Oh, no, I see that customers_categories is not the usual habtm table name.

[cocozz]

I finnally came to a solution after some "keep it simple" brainstorming :-),
Now I have a list with my main categories tree, and next to each one a checkbox.

When I check one checkbox, that category with it's ancestors and descendants get added to customers_categories
When I uncheck it, it get removed with its descendants

Every time my list gets reloaded with ajax (through and RJS response), and now every checked checkbox means that the category is already added.

Simple and easy,

Thanks a lot for your awesome plugin !!!