I have: check_box_tag "supplier[category_ids]", category.id,@supplier.categories.include?(category). I want to include @supplier.categories.include?(category) only if @supplier is not nil. Advices?
Have you tried (@supplier.categories.include?(category) if @supplier)
Colin
mmmmmm it seems to work. Sorry, I had try the same code yesterday but it didn't work, it was late perhaps I was very tired, sorry again.
No problem, it can be fiddly sometimes to get such things to work. If one is not certain that it *should* work then a syntax error puts one off the whole idea. When I said "have you tried ..." I was not at all suggesting that it was so obvious that only one mentally challenged would have failed
Colin
Colin