search for: your_object_your_field

Hi, I need some help. I`m developing a data base administrator using ruby and ajax, both for the first time and I have a problem: I have a form where you can add or delete some information about a person., information related with their studies. There is no problem when I add, but when I delete, it deletes from the database but when I try to save it throughs me an error because it tries to find