Hi
I'm programming in rails a web application which uses 4 CSV files
prof.csv, student.csv et course.csv et subscriptions.csv
a prof can give one or many courses, a student can subscribe to one or many courses etc ...
I need to update the CSV files. for example : create, list, modify and delete on one or many tables in the same time. For example un student select a course and a new record is added to the table subscription.csv ...
1. what are the methods I need for these operations ? 2. how many controllers should I create ? 3. how many models ?
thank you so much 