this is my view code <%= f.collection_select(:user, :province_id , @provinces ,:id , :name) %> and this is my controller code
params[:user_province_id]
it is giving nothing 
when i use observe field and use "params[:user_province_id]" in
controller then it gives the value easily.
but when i submit the form, this collection_select gives me nothing.
i dont know what is the problem . plz n e one help me out
thanx in advance