Rails : simple_form : Getting an empty string from checkbox collection

Question

I have the following code in my views

<%= f.input :role_names, as: :check_boxes, collection: @program.role_names %>

And whenever I submit the

Answer 1

It's a Rails' feature. You'll be able disable it in Rails 4. You can read more about this on simple form issue #603 and Rails issue #5402