Question

I want to check the form data received from the form in ruby on rails controller.

I tried this but nothing is shown:

@user.to_yaml

where @user is the form name(<%=form_for @user )

Answer 1

the data sent by a form is stored in the params hash (see this question for more information).

also, in development, just put a raise in your controller action to show an error page with all request parameters displayed.