search for: scopting

i am working on a task management system for the company i work for. i just got the rails cookbook and am trying to use the section on creating a drag and drop sortable list. the tricky part is that my Task model references the User model in two different spots. i have one field for the creator of the task and another for the assignee. so in my Task model i have the following code: class

In the scripts I see lots of calls like .Call(xxxx.....). But if I replace this exact string in my own R script I get xxxx not found. I was wondering what the scopting rules are for these functions. How just for testing (I don't want to build a full blown package) to I use .Call and .C or .Fortran foreign function calls? Thank you. Kevin