Rails select helper - Default selected value, how?

Question

Here is a piece of code I\'m using now:

<%= f.select :project_id, @project_select %>

How to modify it to make its default value equal

Answer 1

if params[:pid] is a string, which if it came from a form, it is, you'll probably need to use

params[:pid].to_i  

for the correct item to be selected in the select list